Association between Sleep Duration, Social Jetlag, and the Metabolic Syndrome by Shift Works.

Lifestyle factors, including sleep characteristics, have been implicated in the development of metabolic syndrome, particularly among shift workers. This study aimed to explore the relationship between shift work, sleep duration, social jetlag, and the risk of metabolic syndrome among U.S. workers and the moderating effect of sleep duration and social jetlag on this relationship. Data from the National Health and Nutrition Examination Survey (NHANES) in 2017-2020 March were analyzed. Poisson regression models were employed to examine associations. Among 4136 U.S. workers, 53.3% had metabolic syndrome, with a higher proportion of shift workers (63.8% vs. 56.7%, p = 0.001) and those sleeping less than 6 h or more than 9 h per week (22.3% vs. 19.1%, p = 0.044) in the affected group. Shift workers were initially found to have an increased risk of metabolic syndrome (Coef. = 0.03, 95% CI: 0.02, 0.16); however, this association was mitigated when accounting for the interaction with social jetlag. Specifically, 1 to <2 h of social jetlag interacted significantly, increasing metabolic risk (Coef. = 0.15, 95% CI: 0.09, 0.22), whereas 1 to <2 h alone showed a protective effect (Coef. = -0.11, 95% CI: -0.17, -0.06). These findings suggest that optimizing sleep schedules and addressing social jetlag may be crucial in mitigating metabolic syndrome risks among shift workers.

Prevalence and clinical implications of sarcopenia in breast cancer: a systematic review and meta-analysis.

PURPOSE: The impact of sarcopenia in oncology is increasingly recognized, yet little is known about its clinical implications in breast cancer. This systematic review and meta-analysis estimates the overall prevalence of sarcopenia in breast cancer, quantifies skeletal muscle index (SMI), and comprehensively evaluates sarcopenia's impact on clinical outcomes. METHODS: We systematically searched primary original research published before June 2023 in four databases: the Cochrane Library via Wiley, CINAHL Plus with Full Text, Embase via Elsevier Excerpta Medica, and Medline via Ovid. Standardized mean SMI and 95% confidence interval (CI) were calculated by applying the random-effects model. The methodological quality of the included studies was assessed using the National Institutes of Health quality assessment checklist. RESULTS: The systematic review included 17 studies with a total of 9863 patients; the meta-analysis included 12 of these studies. The mean prevalence of sarcopenia in breast cancer (stages I-III) was 32.5%. The mean SMI assessed by CT was 43.94 cm2/m2 (95% CI 42.87, 45.01; p < .01). Overall, low muscle mass was associated with chemotherapy toxicities, dose reductions, dose delays, or treatment discontinuation. Low muscle mass was generally associated with poor survival, but in some studies, this association was not significant or reversed direction. CONCLUSION: Sarcopenia is not just a state of muscle mass loss, but an influencing factor on therapeutic effects and survival rates in oncology. It is thus necessary to recognize the risk of sarcopenia throughout the trajectory of cancer treatment, identify low muscle mass early, and manage it from a prehabilitation perspective.

Network visualization to interpret which healthcare services are central to people living with HIV.

AIM: To employ network analysis to identify the central healthcare service needs of people living with HIV (PLWH) for integrated care. DESIGN: Cross-sectional survey. METHODS: A list of healthcare services was identified through literature reviews, expert workshops and validity evaluations by PLWH. A total of 243 PLWH participated at five hospitals and self-reported their need for healthcare services on a four-point Likert scale. Centrality of healthcare service needs was analysed using network analysis. RESULTS: The mean score for 20 healthcare service needs was 3.53 out of 4. The highest scoring need, "Precaution for interaction between antiretroviral therapy and other drugs," received a rating of 3.73 but had a centrality of only 0.31. The most central node in the network of healthcare service needs, "Information and coping with opportunistic infections," had a strength centrality of 1.63 and showed significant relationships with "non-HIV-related medical services (e.g., health check-ups)" and "Regular dental services." The correlation stability coefficient, which quantifies the stability of centrality, was 0.44 with an acceptable value. CONCLUSIONS: The most central need was information on opportunistic infections that had connections with many nodes in network analysis. By interpreting the relationships between needs, healthcare providers can design interventions with an integrative perspective. IMPLICATIONS FOR PATIENT CARE: Network visualization provides dynamic relationships between needs that are unknown from the score scale by presenting them graphically and qualitatively. IMPACT: Using network analysis to interpret need assessment offers an integrated nursing perspective. Coping with opportunistic infection is central to connecting the chain of healthcare. This study highlights the multifaceted understanding of patients' needs that nurses gain when they conduct network analysis. REPORTING METHOD: We adhered to the STROBE checklist. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

Health Behavior Adherence in a Metropolitan-Based Metabolic Syndrome Management Program during the COVID-19 Pandemic.

Background: The COVID-19 pandemic increased the worldwide prevalence of metabolic syndrome. The purpose of this study was to assess health behavior adherence during the pandemic in adults who had engaged in a metabolic syndrome management program for at least 6 months. This assessment included an evaluation of health behavior changes, factors influencing adherence, and clinical parameters. The city-wide program was operated by the Seoul Metropolitan Government. Methods: Baseline and follow-up data were compared in 116 participants who engaged in the program for at least 6 months prior to the pandemic. Health behaviors and clinical parameters were examined. Generalized estimating equation analysis was used to identify sociodemographic variables influencing health behavior adherence over time. Results: Systolic blood pressure, waist circumference, and blood glucose improved (all P<0.05), and risk factors decreased (P<0.001) from baseline to follow-up (mean±standard deviation, 1.13±0.91 years). All six health behaviors, physical activity and weight control, eating habits, alcohol consumption and smoking, stress management, sleep and rest, and medication compliance and medical examination improved (all P<0.001) from baseline to follow-up (2.37±1.05 years). Smoking and employment negatively influenced adherence to health behaviors (P<0.05). Participants felt the most beneficial part of the program was receiving sequential medical examination results with follow-up consultations by public health professionals without charge. Conclusion: Our study demonstrated the durability of the impact of the Seoul Program on all six targeted health behaviors as well as clinical parameters. Findings encourage participation in such broad-based programs and development of novel approaches to facilitate success for smokers and employed participants.

Associations Between Gut Microbial Features and Sickness Symptoms in Kidney Transplant Recipients.

PURPOSE: The study investigated the relationship of gut microbiome features and sickness symptoms in kidney transplant recipients. METHODS: Employing a prospective, longitudinal design, we collected data from 19 participants who had undergone living-donor kidney transplant at three timepoints (pre-transplant and 1 week and 3 months post-transplant). Sickness symptom data and fecal specimens were collected at each timepoint. Participants were grouped either as high or low sickness symptom severity at baseline. Shotgun metagenomics sequencing characterized gut microbial structure and functional gene content. Fecal microbial features, including alpha (evenness and richness within samples) and beta (dissimilarities between samples) diversity and relative abundances, were analyzed using R statistical packages. Cross-sectional and longitudinal analyses examined relationships between gut microbial features and sickness symptoms. RESULTS: Although our exploratory findings revealed no significant differences in alpha and beta diversity between groups, the high-severity group showed lower microbial richness and evenness than the low-severity group. The high-severity group had enriched relative abundance of bacteria from the genera Citrobacter and Enterobacter and reduced relative abundance of bacteria from the genus Akkermansia across timepoints. No functional genes differed significantly between groups or timepoints. CONCLUSIONS: Kidney transplant recipients with high symptom burden displayed increased putative proinflammatory bacteria and decreased beneficial bacteria. This study provides an effect size that future large cohort studies can employ to confirm associations between gut microbial features and sickness symptom experiences in the kidney transplant population. The study findings also have implications for future interventional studies aiming to alleviate the sickness symptom burden in this population.

Exploring the characteristics and health outcomes of working from home: Analysis of 2021 California Health Interview Survey data.

BACKGROUND: Working from home (WFH) may affect health behaviors and mental health. The coronavirus disease-2019 (COVID-19) pandemic saw many US employees transition to WFH, which has persisted in various job sectors and significantly impacted employees. However, its effects on health outcomes have remained unclear. We aimed to explore the characteristics and health outcomes of, and health-related differences between, WFH and not-WFH groups. METHODS: Using the 2021 California Health Interview Survey data, we analyzed health behaviors (smoking, alcohol consumption, and fruit-related nutrition) and the mental health status of 12,438 individuals using descriptive statistics, Pearson's χ2 test, and regressions. RESULTS: A total of 39% were WFH and 61% were not-WFH. Overall, the WFH group had worse health behaviors and mental health than the not-WFH group. Age was associated with smoking in both groups (WFH: b = 0.37; not-WFH: b = 0.35), but with fruit-related nutrition only in the WFH group. Household income and occupation were associated with alcohol consumption in both groups. Age (WFH: b = -1.58; not-WFH: b = -1.39), household income (WFH: b = -0.75; not-WFH: b = -0.34), and job duration (WFH: b = -0.34; not-WFH: b = -0.40) were associated with mental health in both groups; those who were younger and had lower household incomes and job durations had worse mental health. CONCLUSION: Health management is a clear necessity for the WFH group. Irrespective of WFH status, young workers with shorter than 5 years' job duration reported mental distress, highlighting a need for distress assessment and management for the young workforce.

Comprehensive lifestyle modification interventions for metabolic syndrome: A systematic review and meta-analysis.

INTRODUCTION: Previous systematic reviews and meta-analyses have mainly focused on improvements in the number of metabolic syndrome risk factors and individual changes in each risk factor, making it challenging to examine the impact of comprehensive lifestyle modification interventions on adherence to recommended health behaviors. To address this gap, we conducted a systematic and meta-analysis aimed at identifying clinical parameter levels associated with lifestyle modification outcomes and adherence to recommended health behaviors for individuals with metabolic syndrome. METHODS: A total of seven studies retrieved from four databases (CINAHL, Medline via PubMed, American Psychological Association PsycINFO, and Embase) were included in the review. The selected studies, which demonstrated improvements in health behaviors, all included diet and exercise as main factors of comprehensive lifestyle modification in home settings. RESULTS: Our findings suggest that a 6-month comprehensive intervention including diet and exercise can be effective in decreasing glucose levels and systolic blood pressure. However, given the limited available data, further studies investigating the efficacy of interventions of varying durations are needed. DISCUSSION: Although our review included a small number of studies, comprehensive lifestyle modifications consisting of at least two components (primarily diet and exercise) can improve health behaviors and some clinical parameters among individuals with metabolic syndrome. Future studies are needed to investigate the long-term effects of lifestyle modifications on health behavior adherence and explore effective interventions to address certain clinical parameters, such as high-density lipoprotein levels. Also, we recommend using objective and quantifiable measure to compare adherence to recommended lifestyle modifications across studies. CLINICAL RELEVANCE: This research provides empirical evidence of the effectiveness of comprehensive lifestyle modification and emphasizes the need to develop long-term nursing strategies in public health that can be used to effectively manage metabolic syndrome.

Long-term late effects in older gastric cancer survivors: Survival analysis using Cox hazard regression model by retrospective electronic health records.

PURPOSE: Because the population of older gastric cancer survivors (GCSs) is growing, understanding the long-term late effects experienced by these GCSs and their impact on survival outcomes is crucial for optimizing survivorship care. This study aims to identify and characterize these effects and investigate their association with survival outcomes. METHODS: A retrospective analysis of electronic health records was conducted on 9,539 GCSs diagnosed between 2011 and 2017. The GCSs were divided into two age groups (< 65 and ≥ 65 years) and the long-term late effects were categorized by age using Cox proportional hazard models. The impact of clinical factors and age-specific late effects on survival was evaluated in the older GCSs. RESULTS: Among the total GCSs, 37.6% were over and 62.4% were under 65 years of age. Significant differences between the age groups were observed in the cumulative hazard ratios (HRs) for iron and vitamin B12 levels and prognostic nutritional index (PNI) scores. In older GCSs, abnormal iron levels (HR 1.98, 95% CI 1.16-3.41, p = .013) and poor PNI scores (HR 1.59, 95% CI 1.03-2.47, p = .038) were associated with poorer survival outcomes. Additionally, being female was identified as a risk factor for lower survival rates (if male, HR 0.42, 95% CI 0.18-0.98, p = .045). CONCLUSION: This study highlights the typical long-term late effects experienced by older GCSs. By tailoring survivorship care to address nutritional-, age-, and gender-related factors, the overall survival and quality of life of older GCSs can be improved.

Translation and validation of the Korean version of the QUAlity of Life Assessment in Spina bifida for Teenagers (QUALAS-T-K).

PURPOSE: The Quality of Life Assessment in Spina bifida for Teenagers (QUALAS-T) is a tool used to evaluate health-related quality of life (HRQOL) in adolescents with spina bifida (SB). The purpose of this study was to translate the QUALAS-T into Korean and validate its Korean version (QUALAS-T-K). METHODS: Translation and validation processes were carried out in accordance with a specified protocol, including forward and back translation, a content validity study, and a main study. The tool's reliability was evaluated based on its internal consistency and stability. Factor analysis was conducted, and convergent validity was confirmed using the KIDSCREEN-27. RESULTS: Of the 59 participants, 35 had lipomyelomeningoceles. Confirmatory factor analysis confirmed that QUALAS-T-K had the same structure as QUALAS-T. The QUALAS-T-K showed excellent internal consistency (α: 0.872-0.893, ω: 0.875-0.885), test-retest reliability (ICC:0.84-0.92), and weak to strong correlations with the KIDSCREEN-27. CONCLUSIONS: The QUALAS-T-K, developed by reflecting on the characteristics of SB and considering the applicability of Korean cultural characteristics and clinical practice, is a convenient and reliable tool with excellent internal consistency and stability. This could be a useful tool in clinical and research settings for HRQOL evaluation of adolescents with SB.Implications for RehabilitationOptimizing health-related quality of life (HRQOL) is one of the goals of individuals with spina bifida (SB), and HRQOL measures that reflect the condition specificity of SB should be performed.The QUAlity of Life Assessment in Spina bifida for Teenagers (QUALAS-T), developed in the USA, is a self-reported HRQOL questionnaire used in research and clinical practice for adolescents with SB.This study revealed that the QUALAS-T, translated into Korean, is a valid, convenient, and reliable tool.The Korean version of the QUALAS-T is a useful tool that can be used in clinical and research settings to optimize HRQOL in adolescents with SB.

Development and psychometric properties of the social adjustment scale for youth cancer survivors in South Korea.

Objective: We developed a new scale-the Social Adjustment Scale for Youth Cancer Survivors-and examined its psychometric properties. Methods: In the scale's development stage, preliminary items were constructed based on the results of a concept analysis of the hybrid model, literature review, and interviews. These items were then reviewed through content validity and cognitive interviews. In the validation stage, 136 survivors were recruited from two children's cancer centers in Seoul, South Korea. An exploratory factor analysis was performed to identify a set of constructs, and validity and reliability were tested. Results: Starting with 70 items constructed through literature review and interviews with youth survivors, the final scale comprised 32 items. The exploratory factor analysis identified four domains-namely, role achievement in one's present position, harmony in relationships, disclosure and acceptance of cancer history, and preparation and expectation for future roles. Correlations with quality of life indicated good convergent validity (r â€‹= â€‹0.82, P â€‹< â€‹0.001). The Cronbach's α of the overall scale was 0.95, indicating excellent internal consistency; and the intraclass correlation coefficient was 0.94 (P â€‹< â€‹0.001), suggesting high test-retest reliability. Conclusions: The Social Adjustment Scale for Youth Cancer Survivors exhibited acceptable psychometric properties in measuring the social adjustment of youth cancer survivors. It can be used to identify youths facing difficulty in adjusting to society after treatment and to investigate the effect of interventions implemented to promote social adjustment among youth cancer survivors. Future research is needed to examine the applicability of the scale in patients across diverse cultural backgrounds and healthcare systems.

Role of Intrapartum Social Support in Preventing Postpartum Depression.

A cross-sectional, multicenter study examined the role of intrapartum social support (SS) on postpartum depression (PPD), using survey data that covered eight of the 25 PPD risk factors identified by a recent umbrella review. A total of 204 women participated at an average of 1.26 months after birth. An existing U.S. Listening to Mothers-II/Postpartum survey questionnaire was translated, culturally adapted, and validated. Multiple linear regression found four statistically significant independent variables. A path analysis determined that prenatal depression, pregnancy and childbirth complications, intrapartum SS from healthcare providers and partners, and postpartum SS from husbands and others were significant predictors of PPD, while intrapartum and postpartum SS were intercorrelated. In conclusion, intrapartum companionship is as important as postpartum SS in preventing PPD.

Development of the clinical reasoning competency scale for nurses.

BACKGROUND: Clinical reasoning is emphasized as an important component of nursing education, since nurses' lack of clinical reasoning leads to incorrect clinical decision-making. Therefore, a tool for measuring clinical reasoning competency needs to be developed. METHODS: This methodological study was conducted to develop the Clinical Reasoning Competency Scale (CRCS) and examine its psychometric properties. The attributes and preliminary items of the CRCS were developed based on a systematic literature review and in-depth interviews. The validity and reliability of the scale were evaluated among nurses. RESULTS: The exploratory factor analysis was conducted for the construct validation. The total explained variance of the CRCS was 52.62%. The CRCS consists of 8 items for plan setting, 11 items for intervention strategy regulation, and 3 items for self-instruction. The Cronbach's α of the CRCS was 0.92. Criterion validity was verified with the Nurse Clinical Reasoning Competence (NCRC). The correlation between the total NCRC and CRCS scores was 0.78, all of which were significant correlations. CONCLUSION: The CRCS is expected to provide raw scientific and empirical data for various intervention programs to develop and improve nurses' clinical reasoning competency.

The Mediating Effect of Uncertainty in Illness on Cancer Coping in Patients With Primary Malignant Brain Tumors.

BACKGROUND: Patients with primary malignant brain tumors (PMBTs) experience uncertainty in illness (UI) because of the high recurrence rate and symptoms that occur during treatment. OBJECTIVE: To develop and test a model based on the Uncertainty in Illness Theory to predict the UI and cancer coping experienced by PMBT patients. METHODS: This was a cross-sectional study using path analysis. The participants were adults diagnosed with PMBT who completed a questionnaire about demographic and disease-related characteristics, UI, cancer coping, brain tumor symptoms, and social support. Clinical data (eg, the diagnosis, tumor location, and grade) were obtained from electronic health records. Data were analyzed using SPSS 26.0 and the MVN , psych , and lavaan packages in R 4.1.0. RESULTS: This study included 203 PMBT patients. The hypothesized model satisfied all statistical criteria (comparative fit index = 0.998, root mean square error of approximation = 0.044, standardized root mean square residual = 0.016). The indirect and direct associations of UI in the path from social support to cancer coping were all significant with a 95% bootstrapping confidence interval. Although the indirect and direct associations of UI in the path of brain tumor symptoms and cancer coping did not have direct or total effects, the indirect effect was statistically significant. CONCLUSIONS: Uncertainty in illness mediated brain tumor symptoms and social support to predict cancer coping. IMPLICATIONS FOR PRACTICE: A nurse-led intervention for cancer coping among PMBT patients can be developed by considering symptoms and social support and UI as a mediator.

The Relationship Between Duration of Stay and Self-rated Health Among International College Students in South Korea.

This study examined relationships between duration of stay and self-rated health among international students in South Korea and compared participants' health-related characteristics according to duration of stay. The study recruited a convenience sample of 165 international students enrolled in undergraduate or graduate programs. For this cross-sectional, descriptive study, participants were recruited at one South Korean university. Data were subjected to ordinal logistic regression analyses. After controlling for covariates, a stay of 6 months or less was a significant predictor of better self-rated health. Compared to those in their first semester, international students staying more than 6 months more frequently experienced short sleep duration, physical health symptoms, healthcare utilization, unmet healthcare needs, and perceived discrimination. Study findings indicate that international students' health tends to deteriorate after their first semester. To promote the health and academic success of international students, universities should provide timely health promotion programs.

What we need to know about uncertainty in illness among people with primary malignant brain tumours: A mixed-methods systematic review.

AIMS AND OBJECTIVES: To identify the characteristics of uncertainty in illness (UI) among people with primary malignant brain tumours (PMBT). BACKGROUND: High recurrence rates and complex symptoms cause uncertainty in people with PMBT. Given the characteristics of PMBT, reviewing UI among people with PMBT will benefit future research and clinical intervention development. DESIGN: A mixed-methods systematic review. METHODS: We performed a mixed-methods systematic review (PubMed, CINAHL, Embase, PsycINFO, Scopus and Cochrane Library), including studies on UI among people with PMBT, searched from the databases' inception to the search date. The initial search was conducted in July 2021, with an additional search in March 2022. The major search terms were PMBT and UI, and no limitations were placed on the study design. The Cochrane tool was used to evaluate the risk of bias in randomised controlled trials, and JBI checklists were used to evaluate quasi-experimental studies, survey methodology studies and a case study. This review was reported using the PRISMA 2020 checklist. Both quantitative and qualitative research data were extracted, analysed and then integrated in three stages of a mixed-methods systematic review. RESULTS: Eleven studies were included. Due to physical, psychological and social risk factors, the UI progression of people with PMBT was complex and ambiguous, although they adapted to the PMBT diagnosis and treatment process. Subsequently, we proposed a model of UI among people with PMBT. CONCLUSIONS: UI has multidimensional characteristics, and healthcare providers need to consider these aspects for people with PMBT. RELEVANCE TO CLINICAL PRACTICE: The proposed model provides directions for nursing practice and future research. Nurses caring for people with PMBT should comprehend their UI and intervene accordingly. PATIENT OR PUBLIC CONTRIBUTION: This review incorporated data including people with PMBT in hospitals and communities. This analysis contributes to the clinical-to-community nursing transition process for people with PMBT.

Developing an app-based self-management program for people living with HIV: a randomized controlled pilot study during the COVID-19 pandemic.

People living with human immunodeficiency virus (PLWH) in Korea demonstrate insufficient self-management behaviors. Especially during pandemics such as COVID-19, technology-based self-management programs are needed to overcome time and space limitations. The purpose of this study was to evaluate the effects of a self-management program using a mobile app (Health Manager) on self-management outcomes among PLWH in Korea. A randomized controlled pilot trial was performed and participants were enrolled in the infectious outpatient clinic of a single hospital. The intervention group used the mobile app for 4 weeks, while the control group received self-management education materials in a portable document format. The online self-report questionnaire assessed primary outcomes including self-efficacy for self-management, self-management behaviors, and medication adherence, and secondary outcomes including perceived health status, depression, and perceived stigma. Thirty-three participants were randomly assigned to the intervention (n = 17) or the control group (n = 16). In the intention-to-treat analysis, self-efficacy for self-management and self-management behaviors increased, while perceived stigma decreased. The app-based self-management program could be considered a helpful strategy to improve self-management outcomes among PLWH and reduce their perceived stigma during the pandemic. Further studies with larger samples and longer follow-ups are needed.Trial registration: Clinical Research Information Service, KCT0004696 [04/02/2020].

Comparison of factor structures of the Pittsburgh sleep quality index between mid- and late pregnancy among Korean women: a cross-sectional study.

BACKGROUND: Sleep disturbance in pregnant women needs to be accurately assessed in a timely manner during pregnancy, to receive assessment-driven accurate intervention. This study aims to compare the factor structure of the Pittsburgh Sleep Quality Index (PSQI) among women in mid- and late pregnancy and evaluate the psychometric features of the Korean version of the PSQI. METHODS: The survey questionnaire with the PSQI, Center for Epidemiological Studies Depression scale, and pregnancy stress, was completed by 281 women in mid- or late pregnancy. Exploratory factor analysis determined the best factor structure of the PSQI, and the Pearson correlation coefficient examined a convergent validity with depressive symptoms and pregnancy stress. Internal consistency was examined using Cronbach's alpha. RESULTS: In both mid- and late-pregnancy women, a two-factor structure model was identified. However, each factor's different components were named differently. For women in mid-pregnancy, it was named "quantitative sleep quality" and "subjective sleep quality," and for those in later stages of pregnancy, they were named "perceived sleep quality" and "daily disturbance." The PQSI score showed a significantly positive correlation between depressive symptoms and pregnancy stress in mid- (r = 0.57 and r = 0.39, respectively), and late pregnancy (r = 0.48 and 0.28, respectively). The overall Cronbach's alpha for the PSQI was 0.63. CONCLUSIONS: The Korean version of the PSQI demonstrated excellent construct and convergent validity, making it suitable to assess the sleep quality of women in middle to late stages of their pregnancy. The PSQI was found to have a two-factor structure in the mid-and late pregnancy, but the components were different. As sleep quality changes with each gestational stage, factors affecting it during mid- and late pregnancy need to be separately examined. It will make it easier for medical professionals to provide pregnant women sleeping irregularly, with the right kind of intervention.

Psychometric evaluation of the Korean version of PROMIS self-efficacy for managing symptoms item bank: Item response theory.

PURPOSE: To evaluate the psychometric properties of the Patient-Reported Outcomes Measurement Information System (PROMIS) self-efficacy for managing symptoms of the version 1.0 item bank in Korean. METHODS: This study consisted of two phases: first, developing the Korean version of the item bank following the translation guidelines; and second, performing a cross-sectional study to evaluate its psychometric properties using the item response theory. This study enrolled 323 patients with type 2 diabetes mellitus between July and August 2020. Cronbach's α was used to assess the reliability of this item bank. Confirmatory factor analysis, using diagonally weighted least squares, was used to identify the assumptions of item response theory. Item parameter estimates including discrimination and thresholds were derived using the graded response model of the item response theory to reflect patient-reported outcomes as individualized responses. RESULTS: The Korean version of the item bank demonstrated good reliability (Cronbach's α =.98) and its discrimination ranged from 1.82 to 4.93. The thresholds resulted in the establishment of a category response curve for each item. However, no overlap was observed among the category curves. Moreover, the differential item functioning was not significant for age, gender, and income variables. CONCLUSION: The graded response model and differential item functioning provided qualitative evidence that demonstrated acceptable psychometric properties of symptom management self-efficacy among patients. This item bank is expected to provide adequate assessments of self-efficacy of symptom management for patients with a chronic disease, which can contribute to nursing research and intervention.