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Original Article

A Predictive Model for Person-Centered Care in Intensive Care Units in South Korea: A Structural Equation Model

Korean Journal of Adult Nursing 2025;37(3):467-477.
Published online: November 28, 2025

1Registered Nurse, Intensive Care Unit, Chung-Ang University Hospital, Seoul, Korea

2Professor, Department of Nursing, Chung-Ang University, Seoul, Korea

Corresponding Author: Kisook Kim Department of Nursing, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea. Tel: +82-2-820-5723 Fax: +82-2-824-7961 E-mail: kiskim@cau.ac.kr
• Received: July 2, 2025   • Revised: September 11, 2025   • Accepted: October 2, 2025

© 2025 Korean Society of Adult Nursing

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Purpose
    Person-centered care emphasizes the therapeutic relationship between medical staff and patients, founded on mutual trust and understanding. In intensive care settings, there is growing recognition of the need to improve the care environment and promote patient-focused nursing. This study aimed to construct and validate a predictive model explaining person-centered care in intensive care units.
  • Methods
    This study employed a cross-sectional design involving 230 intensive care unit nurses working in a tertiary hospital, each with more than one year of direct patient care experience. Data were collected online between March 2 and March 30, 2023. Data analysis was conducted using IBM SPSS ver. 26.0 and AMOS ver. 25.0.
  • Results
    Statistically significant pathways were identified from nursing competency to the nursing work environment and person-centered care; from communication competence to teamwork and person-centered care; from nursing professionalism to teamwork and the nursing work environment; and from the nursing work environment to person-centered care. Nursing professionalism indirectly influenced person-centered care through teamwork and the nursing work environment.
  • Conclusion
    Enhancing person-centered care in intensive care units requires recognizing the critical roles of communication competence, nursing competency, and the nursing work environment. Developing and implementing educational programs that strengthen communication and nursing competencies, alongside initiatives that improve the nursing work environment, are essential.
Intensive care units (ICUs) provide specialized treatment using life-support devices and continuous monitoring to care for critically ill patients [1]. Because of the high severity of illness and the complexity of tasks, ICUs primarily deliver disease-centered treatment, requiring exceptional focus and professional expertise [2]. Intensive care nurses possess specialized knowledge for managing critically ill patients and must demonstrate advanced critical care nursing skills [3]. These nurses experience substantial physical and psychological stress while caring for severely ill patients due to their heavy workload, uncertain patient prognoses, operation of complex medical equipment, and the responsibility of communicating with families [4]. Excessive workload and stress can compromise patient safety [5].
Recently, awareness has increased regarding the importance of patient participation in treatment decision-making [6]. The medical paradigm has shifted from staff-centered to patient-centered and from disease-oriented to symptom-focused care [7]. Person-centered care (PCC) involves building therapeutic relationships between healthcare professionals and patients based on mutual trust and understanding [8]. Nurses who respect patients’ values and autonomy deliver professional care by focusing on individuals and communicating effectively [9].
PCC and patient-centered care share core elements, including empathy, respect, engagement, relationship communication, shared decision-making, holistic focus, individualized attention, and coordinated care. However, they differ in their ultimate goals. Patient-centered care primarily aims for symptom relief and functional recovery, whereas PCC emphasizes holistic well-being and meaningful living by reflecting the individual’s values and life context. PCC thus represents a broader concept, extending beyond the patient to encompass the person as a whole [10]. Currently, PCC serves as an overarching concept, reflecting the principle that individualized nursing should be provided to all individuals, regardless of setting or clinical context [11]. In ICUs, PCC requires that professional nurses with specialized expertise respect and empathize with patients while delivering individualized interventions [12]. PCC has been shown to reduce hospitalization length and outpatient visits, generate economic benefits through decreased medical costs [13], and improve patient satisfaction by enhancing nursing service quality [14]. However, ICU nurses often face challenges implementing PCC due to the urgent nature of tasks, time constraints, and the presence of complex medical equipment that limits interaction [3,15]. Therefore, improving the ICU care environment and emphasizing PCC are essential [16]. Nursing care that respects, empathizes with, and acknowledges patient individuality should be prioritized, and ICU nursing should focus on person-centered holistic care that incorporates patients’ values and preferences [14].
Numerous studies have examined PCC. The theory of PCC was developed through research identifying four core elements using the person-centered nursing conceptual framework, which has been widely applied to practice and comprehensively articulates the essential components of PCC [8,17]. Previous studies have analyzed the defining attributes of PCC in ICUs [12], examined its practical application [18], and developed measurement tools [19]. More recently, research has explored changes in the medical environment and factors influencing PCC during the coronavirus disease 2019 (COVID-19) pandemic [20,21]. Structural equation modeling (SEM) has also been used to comprehensively examine PCC among nurses [22,23]. However, most previous studies have focused on diverse clinical settings such as general wards, limiting their applicability to the unique environment and structural demands of ICUs. Although some studies included ICU nurses as participants, few have conducted an in-depth investigation of how PCC is implemented in ICUs, where continuous monitoring, specialized treatment, and rapid responses to critical events are prioritized. Accordingly, the present study aims to elucidate the factors influencing PCC in the specialized ICU context, providing an empirical foundation for improving the quality of ICU nursing practice.
An integrated causal model was developed based on McCormack and McCance’s [8] Person-Centered Nursing Theory and the four attributes of person-centered critical care nursing proposed by Jakimowicz and Perry [12]. McCormack and McCance [8] argue that person-centered outcomes arise from care processes shaped by nurses’ prerequisites and the care environment. In this study, prerequisites include nursing competency, communication competence, and nursing professionalism, while the care environment encompasses teamwork and the nursing work environment. Jakimowicz and Perry [12] conceptualized ICU PCC as the application of advanced knowledge and technical expertise to preserve patient dignity and identity. Their four key attributes—patient identity, biomedical nursing practice, compassionate presence, and professional presence—are considered here as the care processes through which PCC is achieved. By integrating these frameworks, this study proposes a hypothetical model linking nurse characteristics, environmental factors, and PCC processes in ICUs (Figure 1). The model’s pathways were subsequently tested for statistical significance and overall fit. This study thus aims to empirically validate an integrated causal model of PCC in ICUs, establishing a theoretical and empirical foundation for improving the quality of critical care nursing.
1. Study Design
This cross-sectional study constructed a theoretical model of PCC for ICUs through a literature review and tested the model’s suitability by hypothesizing pathways using survey-based SEM. The study is reported in accordance with the STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) guidelines.
2. Setting and Samples
The sample consisted of 230 ICU nurses employed in the ICUs of a tertiary general hospital in South Korea, each with at least one year of direct patient care experience. According to Benner [24], nurses’ skill levels are classified as novice, advanced beginner, competent, proficient, and expert. Nurses with at least one year of clinical experience are generally categorized as advanced beginners or are transitioning into the competent stage, during which they can provide nursing care with greater stability and autonomy in clinical settings. In addition, previous studies have demonstrated that clinical experience in ICUs positively influences the practice of PCC [15,20]. Based on these findings, a minimum of one year of ICU experience was established as an inclusion criterion.
Although there is no universal standard for determining sample size in SEM, the minimum number of participants recommended for the maximum likelihood estimation method, which is the most commonly used approach in structural modeling, is between 100 and 150. In general, a sample size of 200 is considered adequate for most structural models [25]. Therefore, this study included 230 participants to account for potential dropout.
3. Measurements

1) Person-centered care

The Person-Centered Critical Care Nursing scale, originally developed for ICU nurses by Kang et al. [7], was used to measure the PCC process. The instrument consists of 15 items across four domains: compassion (4 items), individuality (4 items), respect (4 items), and comfort (3 items). Each item is rated on a 5-point Likert scale (1=strongly disagree to 5=strongly agree), with higher scores indicating greater levels of PCC practice. Cronbach’s α for this study was .83.

2) Nursing competency

Nursing competency was assessed using an instrument adapted by Kim [26], based on Jang’s [27] four-stage clinical career development model encompassing 13 nursing competencies. The tool includes 13 items across four domains: scientific nursing competency (3 items), ethical nursing competency (2 items), personal nursing competency (3 items), and esthetical nursing competency (5 items). Each item is rated on a 4-point Likert scale (1=disagree to 4=strongly agree), with higher scores reflecting higher nursing competency. Cronbach’s α for this study was .90.

3) Communication competence

Communication competence was measured using the Global Interpersonal Communication Competence Scale developed by Hur [28]. The scale comprises 15 items rated on a 5-point Likert scale (1=strongly disagree to 5=strongly agree), with higher scores indicating greater communication competence. Cronbach’s α in this study was .85.

4) Nursing professionalism

Nursing professionalism was measured using the Nursing Professional Values Scale developed by Yeun et al. [29]. The instrument includes 29 items across five domains: originality of nursing (3 items), roles of nursing service (4 items), professionalism of nursing (5 items), social awareness (8 items), and self-concept of the profession (9 items). The nursing originality domain contains reverse-scored items. Each item is rated on a 5-point Likert scale (1=strongly disagree to 5=strongly agree), with higher scores indicating more firmly established professional nursing intuition. Cronbach’s α in this study was .94.

5) Teamwork

Teamwork was assessed using the Teamwork Perceptions Questionnaire developed by the Agency for Healthcare Research and Quality and the U.S. Department of Defense [30], using the Korean version translated and validated by Hwang and Ahn [31]. This tool includes 35 items across five domains: team structure (7 items), leadership (7 items), situation monitoring (7 items), mutual support (7 items), and communication (7 items). Each item is rated on a 5-point Likert scale (1=strongly disagree to 5=strongly agree), with higher scores representing more positive perceptions of teamwork. The Cronbach’s α value obtained in this study was .96.

6) Nursing work environment

The Practice Environment Scale of the Nursing Work Index developed by Lake [32] and translated and validated in Korean by Cho et al. [33] was used to assess the nursing work environment. The scale consists of 29 items across five domains: nurse participation in hospital affairs (9 items), nursing foundations for quality of care (9 items), nurse manager ability, leadership, and support for nurses (4 items), staffing and resource adequacy (4 items), and collegial nurse-physician relationships (3 items). Each item is rated on a 4-point Likert scale (1=strongly disagree to 4=strongly agree), with higher scores reflecting more positive perceptions of the nursing work environment. Cronbach’s α in this study was .96.
4. Data Collection
Data were collected from March 2 to March 30, 2023. An actively operating online nursing community with over 500,000 members was selected. The purpose and procedures of the study were explained to the community administrator, and permission was obtained. A recruitment notice was then posted to invite participants, and the online survey was distributed to those who voluntarily expressed their intent to participate. Participants provided informed consent via the online link before completing the survey.
5. Ethical Considerations
This study was approved by the Institutional Review Board (IRB) of Chung-Ang University (IRB No.: 1041078-20221231-HR-033). The study was conducted online, and participants were allowed to proceed with the survey only after reading an explanatory statement containing information on the study purpose, content, procedures, confidentiality, voluntary participation, withdrawal rights, and consent.
6. Data Analysis
Data were analyzed using SEM with IBM SPSS ver. 26.0 and AMOS ver. 25.0 (IBM Corp., Armonk, NY, USA). Descriptive statistics were used to summarize participants’ characteristics and study variables, and instrument reliability was evaluated using Cronbach’s α. Univariate normality was assessed through means, standard deviations, skewness, and kurtosis in IBM SPSS, while multivariate normality was examined in AMOS. Convergent and discriminant validity were tested using confirmatory factor analysis. Model fit was assessed using the root mean square residual (RMR), standardized root mean square residual (SRMR), goodness-of-fit index (GFI), adjusted goodness-of-fit index (AGFI), Tucker–Lewis index (TLI), comparative fit index (CFI), and root mean square error of approximation (RMSEA). The significance of direct, indirect, and total effects was examined through bootstrapping procedures.
1. Participant Characteristics and Degree of Person-Centered Care Based on General Characteristics
The general characteristics of the participants and the degree of PCC according to these characteristics are presented in Table 1. The total number of participants was 230, including 203 women (88.3%) and 27 men (11.7%). The mean age was 29.84 years, with 126 participants (54.8%) aged 20–29 years and 92 participants (40.0%) aged 30–39 years.
PCC significantly differed by age (F=28.91, p=.014), highest level of education (F=12.21, p=.001), position (t=2.72, p=.011), shift type (t=3.56, p=.002), total clinical work experience (F=7.56, p<.001), and average monthly income (F=2.98, p=.020). Participants aged 40 years or older demonstrated higher PCC levels than those in their 20s or 30s. Those with a master’s degree reported higher PCC levels than participants with an associate or bachelor’s degree. Additionally, participants with more than 10 years of clinical experience exhibited higher PCC levels than those with 1–4 years of experience.
2. Confirmatory Factor Analysis of Measured Variables
A latent variable was considered to demonstrate convergent validity when its construct reliability exceeded 0.7 and the average variance extracted (AVE) was greater than 0.5 [25]. In this study, the reliability coefficients of all subdomains met the threshold of 0.7, confirming adequate internal consistency. For the sub-variables of PCC—compassion, individuality, respect, and comfort—the AVE was 0.439, while the construct reliability was 0.751, thus satisfying the standard criterion for composite reliability and supporting convergent validity. An examination of the confidence intervals of the correlation coefficients revealed that none included 1.0, thereby confirming discriminant validity and demonstrating that each construct represented a distinct concept. As Malhotra [34] noted, convergent validity may still be acceptable when AVE is below 0.5 if the composite reliability is 0.7 or higher, further supporting the adequacy of this measurement model.
3. Model Fit Indices of Theoretical Models
The criteria for determining an acceptable model fit were as follows: χ²/df≤3, RMR≤.05, SRMR≤.08, GFI≥.90, AGFI≥.80, CFI and TLI≥.90, and RMSEA≤.05, with values below .08 also considered acceptable [25]. The theoretical model in this study demonstrated an adequate level of fit: χ²/df=2.25, RMR=.02, SRMR=.06, GFI=.85, AGFI=.81, TLI=.91, CFI=.92, and RMSEA=.07. Overall, the model fit indices met or closely approximated the recommended criteria, indicating a satisfactory goodness of fit.
4. Process of Deriving the Final Model
The final model was derived through a three-step process. In theoretical model 2, the relationship between nursing competency and teamwork, which was present in hypothetical model 1, was found to be non-significant and was therefore removed. In theoretical model 3, the relationship between communication competence and the nursing work environment was also excluded due to a lack of statistical significance. After excluding these non-significant paths, the model’s goodness of fit (χ²/df) changed minimally from 2.25 to 2.24, with no change in the other fit indices. Across all three theoretical models, seven paths remained statistically significant, and excluding the non-significant paths did not meaningfully alter the overall model fit. Therefore, theoretical model 1 was retained as the final model to fully consider the effects of each factor (Table 2). Of the 11 hypothesized paths, seven were statistically significant (Figure 2).
5. Direct, Indirect, and Total Effects
The direct, indirect, and total effects of the final model are shown in Table 3. The PCC process was directly influenced by nursing competency, communication competence, and the nursing work environment. Nursing professionalism indirectly affected PCC through its influence on teamwork and the nursing work environment. Teamwork itself did not have a direct effect on PCC. The model’s explanatory power, with PCC as the endogenous variable, was 65.1% (SMC=.651).
This study developed a hypothetical model based on McCormack and McCance’s [8] person-centered nursing theory and the attributes identified by Jakimowicz and Perry [12] to examine factors influencing PCC in ICUs. Model testing was conducted in three steps, resulting in a final model in which seven of the 11 hypothesized paths were statistically significant. These findings provide a foundation for discussing the interrelationships among factors influencing PCC in ICUs.
This study found statistically significant pathways from nursing competency to both the nursing work environment and PCC, confirming that nursing competency plays a pivotal role in facilitating the delivery of PCC. Previous research similarly indicates that PCC is directly influenced by nursing competency [23]. For example, nursing competency has been shown to have a significant positive correlation with the delivery of PCC and has been identified as a key influencing factor [35]. These findings affirm that nursing competency is not merely an individual trait but a core foundation through which nurses translate clinical expertise into patient-centered interactions and outcomes. Interestingly, nursing competency did not have a direct effect on teamwork. Effective teamwork arises from interdependent collaboration, open communication, and shared decision-making, which contribute to positive outcomes for patients, organizations, and staff alike [36]. Therefore, enhancing individual competence alone does not automatically lead to improved teamwork. To foster effective teamwork, efforts to strengthen nurses’ competencies must be accompanied by organizational support, including the establishment of collaborative systems and a culture that promotes mutual respect and cooperation.
Communication competence also emerged as a key determinant of PCC, underscoring the crucial role of interpersonal skills in high-acuity care settings. Previous studies have reported a significant positive correlation between communication competence and PCC [6]. Whether viewed through an ecological lens [15] or in adult ICU contexts [2], communication consistently mediates the quality and depth of nurse-patient relationships. These findings reaffirm the importance of communication competence in intensive care nursing. To enhance the quality of nursing care in ICUs, specific strategies are required to strengthen nurses’ communication competencies.
Although nursing professionalism did not directly affect PCC in the model, it showed a significant indirect effect through the nursing work environment. This finding suggests that nursing professionalism enhances PCC by fostering a supportive and ethically grounded organizational culture. Nursing professionalism exhibited statistically significant pathways to both teamwork and the work environment, aligning with previous research showing that professional values influence organizational dynamics and job performance. Establishing nursing professionalism positively contributes to the delivery of high-quality nursing care and the effective performance of nursing duties [29].
The study also found that teamwork did not have a direct effect on PCC, which contrasts with earlier findings that reported a significant positive relationship between teamwork and PCC [15,21,37]. One possible explanation is that the participants’ teamwork levels were already uniformly high, reducing variability and diminishing its predictive power for PCC outcomes. As Rosen et al. [38] emphasized, the effects of teamwork cannot be explained solely by team competencies but are also shaped by complex organizational structures and cultures. Similarly, the current findings suggest that institutional culture and organizational characteristics may mediate the relationship between teamwork and PCC. The results therefore highlight the structural dimensions of organizational culture and work systems. Effective implementation of teamwork requires a multidimensional approach encompassing both cultural and structural supports. Future studies should thus explore organizational culture and structural variables to provide a more comprehensive understanding of how teamwork influences PCC.
Furthermore, this study found that the nursing work environment had a statistically significant direct effect on PCC, indicating that the pathway from the nursing work environment to the delivery of PCC is meaningful. This finding aligns with prior research involving nurses in COVID-19–dedicated hospitals, which also demonstrated a significant influence of the nursing work environment on PCC [20]. These results highlight the crucial role of organizational culture and environmental factors in shaping nurses’ PCC and underscore that fostering a high-quality nursing work environment is essential for promoting PCC [39].
Overall, this study confirmed that communication competence, nursing competency, and the nursing work environment are influential determinants of ICU nurses’ PCC delivery. The implications for practice are threefold. First, structured communication training programs are necessary to enhance ICU nurses’ communication competence [2,15]. In Denmark, a communication education program for healthcare professionals significantly improved self-efficacy, demonstrating the effectiveness of structured training in enhancing communication competence [40]. Simulation-based training and interprofessional communication programs should therefore be implemented. Second, continuous professional development and the establishment of practical support systems are vital to strengthening nursing competency. Because ICU nursing requires advanced clinical judgment and specialized expertise, professional education in this setting is of paramount importance. Studies have shown that adequate training for ICU nurses improves both patient outcomes and operational efficiency [41]. Practical competency should be systematically reinforced through advanced training, case-based learning, simulation education, and mentoring. Third, organizational investment in improving the nursing work environment is essential. High workload intensity and emotional strain directly affect the quality of nursing care. Therefore, building a stable and sustainable work environment requires adequate staffing, emotional support, and reinforcement of teamwork and leadership [39].
This study holds practical value and clinical applicability as it presents concrete strategies and actionable measures relevant to intensive care nursing practice. By identifying key factors that enhance the delivery of PCC, these findings provide foundational data for future ICU nursing education and program development. Because there is currently no validated instrument to directly assess PCC among hospitalized ICU patients, the theoretical framework of McCormack and McCance’s [8] person-centered nursing theory and the four attributes of critical care nursing proposed by Jakimowicz and Perry [12] were adopted. Accordingly, ICU nurses’ delivery of PCC was used as an evaluative indicator. Nevertheless, the study’s reliance on voluntary online recruitment may have introduced limitations, such as potential selection bias and reduced representativeness of the broader ICU nursing population.
This study analyzed the causal relationships among factors influencing PCC using SEM and proposed an integrated model explaining the mechanisms underlying PCC. The results identified nurses’ communication competence, nursing competency, and nursing work environment as the most influential factors significantly affecting the delivery of PCC. Accordingly, three practical measures are recommended to enhance the implementation of PCC: (1) the development of practice-oriented educational programs designed to strengthen ICU nurses’ communication competence; (2) the continuous and systematic integration of educational curricula with practice-based learning to advance nurses’ competencies and professional development; and (3) the implementation of organizational support measures to improve the nursing work environment, including optimal staffing levels, physical environment enhancement, and the cultivation of a positive workplace culture. Future research should aim to develop reliable measurement tools for systematically evaluating the effectiveness of PCC in critically ill patients. Additionally, educational and experimental intervention studies are needed to assess the efficacy of the proposed strategies for improving PCC.

CONFLICTS OF INTEREST

Kisook Kim, a contributing editor of the Korean Journal of Adult Nursing, was not involved in the editorial evaluation or decision to publish this article. The remaining author has declared no conflicts of interest.

AUTHORSHIP

Study conception and design acquisition - KK and SK; data collection - KK and SK; analysis and interpretation of the data - KK and SK; drafting and critical revision of the manuscript - KK and SK.

FUNDING

None.

ACKNOWLEDGEMENT

This article is a revision of the Sunmi Kwon’s doctoral thesis dissertation from Chung-Ang University.

DATA AVAILABILITY STATEMENT

Data sharing is not applicable to this article.

Figure 1.
Theoretical framework of person-centered care in intensive care unit settings.
kjan-2025-0702f1.jpg
Figure 2.
Path diagram of the final model.
kjan-2025-0702f2.jpg
Table 1.
Participant Characteristics and Degree of Person-Centered Care Based on General Characteristics (N=230)
Variables Categories n (%) M±SD t/F (p) Scheffé
Gender Men 27 (11.74) 3.64±0.37 0.59 (.557)
Women 203 (88.26) 3.58±0.48
Age (year) 20–29a 126 (54.78) 3.53±0.41 28.91 (.014)
c>a, c>b
30–39b 92 (40.00) 3.60±0.49
≥40c 12 (5.22) 4.11±0.63
Marital status Unmarried 184 (80.00) 3.59±0.48 0.02 (.981)
Married 46 (20.00) 3.59±0.42
Children 0 205 (89.13) 3.59±0.47 0.23 (.792)
1 8 (3.48) 3.57±0.49
≥2 17 (7.39) 3.51±0.44
Religion Christian 27 (11.74) 3.62±0.44 0.89 (.448)
Catholic 16 (6.96) 3.74±0.39
Buddhist 18 (7.83) 3.49±0.43
None 169 (73.47) 3.58±0.49
Educational background Collegea 7 (3.04) 3.28±0.34 12.21 (.001)
c>a, c>b
Universityb 190 (82.61) 3.53±0.41
≥Master’s degreec 33 (14.35) 3.99±0.58
Position Staff nurse 205 (89.13) 3.54±0.41 2.72 (.011)
Charge nurse 25 (10.87) 3.95±0.73
Shift type 3 shifts 212 (92.17) 3.54±0.42 3.56 (.002)
2 shifts 18 (7.83) 4.13±0.70
Average number of patients per shift (person) ≤2 136 (59.13) 3.63±0.50 1.54 (.216)
3 67 (29.13) 3.55±0.40
≥4 27 (11.74) 3.47±0.45
Total clinical experience (year) 1–4a 115 (50.00) 3.52±0.39 7.56 (<.001)
c>a, c>b
5–9b 75 (32.61) 3.56±0.45
≥10c 40 (17.39) 3.84±0.63
Current department work experience (year) 1–4 159 (69.13) 3.54±0.40 2.94 (.068)
5–9 58 (25.22) 3.74±0.62
≥10 13 (5.65) 3.48±0.41
Average monthly income (10,000 KRW) 200–299 13 (5.65) 3.47±0.34 2.98 (.020)
300–349 106 (46.09) 3.53±0.44
350–399 76 (33.04) 3.72±0.47
400–449 22 (9.57) 3.61±0.50
≥450 13 (5.65) 3.36±0.59
Department (intensive care unit) Medial 129 (56.09) 3.60±0.51 0.35 (.844)
Surgical 59 (25.65) 3.56±0.36
Neonatal 21 (9.13) 3.54±0.32
Pediatric 10 (4.35) 3.71±0.62
Integrated 11 (4.78) 3.52±0.64

M=mean; SD=standard deviation.

Table 2.
Final Model (N=230)
Exogenous variables Endogenous variables Unstandardized coefficient Standardized coefficient SE CR p
Nursing competency Teamwork 0.00 0.00 0.07 –0.00 .999
Nursing work environment 0.24 0.18 0.10 2.29 .022
PCC 0.32 0.33 0.09 3.69 <.001
Communication competence Teamwork 0.27 0.27 0.07 3.91 <.001
Nursing work environment 0.01 0.01 0.10 0.11 .916
PCC 0.41 0.40 0.09 4.78 <.001
Nursing professionalism Teamwork 0.44 0.59 0.06 7.36 <.001
Nursing work environment 0.65 0.61 0.08 7.72 <.001
PCC –0.05 –0.06 0.09 –0.53 .597
Teamwork PCC 0.11 0.11 0.10 1.05 .292
Nursing work environment PCC 0.14 0.19 0.06 2.16 .031

CR=critical ratio; PCC=person-centered care; SE=standard error.

Table 3.
Standardized Direct, Indirect, and Total Effects of the Model (N=230)
Endogenous variables Exogenous variables Effect size (p) SMC
Direct effect Indirect effect Total effect
PCC Nursing competency 0.33 (<.001) 0.03 (.254) 0.36 (<.001) .651
Nursing professionalism –0.06 (.650) 0.18 (.034) 0.11 (.255)
Communication competence 0.40 (<.001) 0.03 (.434) 0.43 (<.001)
Teamwork 0.11 (.408) 0.11 (.408)
Nursing work environment 0.19 (.046) 0.19 (.046)
Teamwork Nursing competency 0.00 (.991) 0.00 (.991) .617
Nursing professionalism 0.59 (<.001) 0.59 (<.001)
Communication competence 0.27 (.001) 0.27 (.001)
Nursing work environment Nursing competency 0.18 (.051) 0.18 (.051) .548
Nursing professionalism 0.61 (<.001) 0.61 (<.001)
Communication competence 0.01 (.915) 0.01 (.915)

PCC=person-centered care; SMC=squared multiple correlation.

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      A Predictive Model for Person-Centered Care in Intensive Care Units in South Korea: A Structural Equation Model
      Image Image
      Figure 1. Theoretical framework of person-centered care in intensive care unit settings.
      Figure 2. Path diagram of the final model.
      A Predictive Model for Person-Centered Care in Intensive Care Units in South Korea: A Structural Equation Model
      Variables Categories n (%) M±SD t/F (p) Scheffé
      Gender Men 27 (11.74) 3.64±0.37 0.59 (.557)
      Women 203 (88.26) 3.58±0.48
      Age (year) 20–29a 126 (54.78) 3.53±0.41 28.91 (.014)
      c>a, c>b
      30–39b 92 (40.00) 3.60±0.49
      ≥40c 12 (5.22) 4.11±0.63
      Marital status Unmarried 184 (80.00) 3.59±0.48 0.02 (.981)
      Married 46 (20.00) 3.59±0.42
      Children 0 205 (89.13) 3.59±0.47 0.23 (.792)
      1 8 (3.48) 3.57±0.49
      ≥2 17 (7.39) 3.51±0.44
      Religion Christian 27 (11.74) 3.62±0.44 0.89 (.448)
      Catholic 16 (6.96) 3.74±0.39
      Buddhist 18 (7.83) 3.49±0.43
      None 169 (73.47) 3.58±0.49
      Educational background Collegea 7 (3.04) 3.28±0.34 12.21 (.001)
      c>a, c>b
      Universityb 190 (82.61) 3.53±0.41
      ≥Master’s degreec 33 (14.35) 3.99±0.58
      Position Staff nurse 205 (89.13) 3.54±0.41 2.72 (.011)
      Charge nurse 25 (10.87) 3.95±0.73
      Shift type 3 shifts 212 (92.17) 3.54±0.42 3.56 (.002)
      2 shifts 18 (7.83) 4.13±0.70
      Average number of patients per shift (person) ≤2 136 (59.13) 3.63±0.50 1.54 (.216)
      3 67 (29.13) 3.55±0.40
      ≥4 27 (11.74) 3.47±0.45
      Total clinical experience (year) 1–4a 115 (50.00) 3.52±0.39 7.56 (<.001)
      c>a, c>b
      5–9b 75 (32.61) 3.56±0.45
      ≥10c 40 (17.39) 3.84±0.63
      Current department work experience (year) 1–4 159 (69.13) 3.54±0.40 2.94 (.068)
      5–9 58 (25.22) 3.74±0.62
      ≥10 13 (5.65) 3.48±0.41
      Average monthly income (10,000 KRW) 200–299 13 (5.65) 3.47±0.34 2.98 (.020)
      300–349 106 (46.09) 3.53±0.44
      350–399 76 (33.04) 3.72±0.47
      400–449 22 (9.57) 3.61±0.50
      ≥450 13 (5.65) 3.36±0.59
      Department (intensive care unit) Medial 129 (56.09) 3.60±0.51 0.35 (.844)
      Surgical 59 (25.65) 3.56±0.36
      Neonatal 21 (9.13) 3.54±0.32
      Pediatric 10 (4.35) 3.71±0.62
      Integrated 11 (4.78) 3.52±0.64
      Exogenous variables Endogenous variables Unstandardized coefficient Standardized coefficient SE CR p
      Nursing competency Teamwork 0.00 0.00 0.07 –0.00 .999
      Nursing work environment 0.24 0.18 0.10 2.29 .022
      PCC 0.32 0.33 0.09 3.69 <.001
      Communication competence Teamwork 0.27 0.27 0.07 3.91 <.001
      Nursing work environment 0.01 0.01 0.10 0.11 .916
      PCC 0.41 0.40 0.09 4.78 <.001
      Nursing professionalism Teamwork 0.44 0.59 0.06 7.36 <.001
      Nursing work environment 0.65 0.61 0.08 7.72 <.001
      PCC –0.05 –0.06 0.09 –0.53 .597
      Teamwork PCC 0.11 0.11 0.10 1.05 .292
      Nursing work environment PCC 0.14 0.19 0.06 2.16 .031
      Endogenous variables Exogenous variables Effect size (p) SMC
      Direct effect Indirect effect Total effect
      PCC Nursing competency 0.33 (<.001) 0.03 (.254) 0.36 (<.001) .651
      Nursing professionalism –0.06 (.650) 0.18 (.034) 0.11 (.255)
      Communication competence 0.40 (<.001) 0.03 (.434) 0.43 (<.001)
      Teamwork 0.11 (.408) 0.11 (.408)
      Nursing work environment 0.19 (.046) 0.19 (.046)
      Teamwork Nursing competency 0.00 (.991) 0.00 (.991) .617
      Nursing professionalism 0.59 (<.001) 0.59 (<.001)
      Communication competence 0.27 (.001) 0.27 (.001)
      Nursing work environment Nursing competency 0.18 (.051) 0.18 (.051) .548
      Nursing professionalism 0.61 (<.001) 0.61 (<.001)
      Communication competence 0.01 (.915) 0.01 (.915)
      Table 1. Participant Characteristics and Degree of Person-Centered Care Based on General Characteristics (N=230)

      M=mean; SD=standard deviation.

      Table 2. Final Model (N=230)

      CR=critical ratio; PCC=person-centered care; SE=standard error.

      Table 3. Standardized Direct, Indirect, and Total Effects of the Model (N=230)

      PCC=person-centered care; SMC=squared multiple correlation.

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