Yukyung Ko
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Yukyung Ko has a total of 11 co-authors. Here are the top co-authors by number of shared publications:
- Bohyun Park
Changwon National University
7 shared publications - Soyoung Yu
College of Nursing, CHA University, 120 Haeryong-ro, Pocheon, Gyeonggi-do, Republic of Korea
3 shared publications - Donghwan Kim
Benefits Information Analysis Department Health Insurance Review and Assessment service (HIRA) Wonju South Korea
2 shared publications - Hanju Lee
Department of Nursing Sangmyung University Cheonan South Korea
2 shared publications - Bo-Hyun Park
Department of Nursing, Changwon National University, Changwon, 51140, Republic of Korea
1 shared publication - Chun-Ja Kim
College of Nursing and Research Institute of Nursing Science, Ajou University, Suwon, South Korea
1 shared publication
Latest Publications
- 31 May 2024
- Published by Taylor & Francis in Contemporary Nurse
- Vol. 60 (4) , 333-344
Examining the experiences of mid-career nurses in hospitals: a phenomenological study
The turnover of new and mid-career nurses has been increasing, leading to challenges in recruiting and retaining nursing staff. Securing and retaining mid-career nurses is crucial for ensuring high-quality care. However, little is known about mid-career nurses' experiences regarding turnover. This study aimed to understand the experiences of mid-career nurses and identify strategies to enable mid-career nurses to maintain long-term employment in health services. Colaizzi's phenomenological methodology was adopted to illuminate the subjective meaning derived from the work-related challenges of mid-career nurses, leading to turnover. Focus group interviews were conducted to delve into the work challenges faced by mid-career nurses. The participants were 23 mid-career nurses working in one tertiary hospital and six secondary hospitals across three Korean cities, recruited using purposive and snowball sampling. The inclusion criteria entailed a minimum of three years of nursing experience and current employment within a designated department or clinical area within the hospital environment, commonly known as a nursing unit. Such units encompassed a range of clinical settings, including medical-surgical units, intensive care units, and emergency rooms. The interview data were transcribed verbatim, and significant statements were extracted from abstract sentences to derive themes through an analytical process. Analysis of the work experiences of 23 mid-career nurses in medical institutions yielded 15 themes and 4 theme clusters derived from 353 meaningful statements. These theme collections were identified as 'Difficulties endured as a mid-career nurse', 'Meaningless and regrettable new graduate nurses' education', 'An inexpressibly poor work environment', and 'Systems and policies needed to remain in the hospital'. Difficulties faced by mid-career nurses including the establishment of an education and career development system, provisions for guaranteed leave, a diverse and flexible work system, opportunities for effective communication, and engagement with the opinions of mid-career nurses should promptly be addressed.
- 31 May 2024
- Published by Taylor & Francis in Contemporary Nurse
- Vol. 60 (4) , 333-344
Examining the experiences of mid-career nurses in hospitals: a phenomenological study
The turnover of new and mid-career nurses has been increasing, leading to challenges in recruiting and retaining nursing staff. Securing and retaining mid-career nurses is crucial for ensuring high-quality care. However, little is known about mid-career nurses' experiences regarding turnover. This study aimed to understand the experiences of mid-career nurses and identify strategies to enable mid-career nurses to maintain long-term employment in health services. Colaizzi's phenomenological methodology was adopted to illuminate the subjective meaning derived from the work-related challenges of mid-career nurses, leading to turnover. Focus group interviews were conducted to delve into the work challenges faced by mid-career nurses. The participants were 23 mid-career nurses working in one tertiary hospital and six secondary hospitals across three Korean cities, recruited using purposive and snowball sampling. The inclusion criteria entailed a minimum of three years of nursing experience and current employment within a designated department or clinical area within the hospital environment, commonly known as a nursing unit. Such units encompassed a range of clinical settings, including medical-surgical units, intensive care units, and emergency rooms. The interview data were transcribed verbatim, and significant statements were extracted from abstract sentences to derive themes through an analytical process. Analysis of the work experiences of 23 mid-career nurses in medical institutions yielded 15 themes and 4 theme clusters derived from 353 meaningful statements. These theme collections were identified as 'Difficulties endured as a mid-career nurse', 'Meaningless and regrettable new graduate nurses' education', 'An inexpressibly poor work environment', and 'Systems and policies needed to remain in the hospital'. Difficulties faced by mid-career nurses including the establishment of an education and career development system, provisions for guaranteed leave, a diverse and flexible work system, opportunities for effective communication, and engagement with the opinions of mid-career nurses should promptly be addressed.
- Open Access
- 28 February 2023
- Published by Wiley in Nursing Open
- Vol. 10 (6) , 3982-3991
Calculating the optimal number of nurses based on nursing intensity by patient classification groups in general units in South Korea: A cross‐sectional study
Aim: This study aimed to calculate the total daily nursing workload and the optimal number of nurses per general unit based on the nursing intensity.Design: This study was conducted using a cross‐sectional study.Methods: Three units at one general hospital were investigated. Patient classification according to nursing needs was performed for over 10 days in each unit in September 2018. The direct and non‐direct nursing time and nursing intensity scores were analysed using descriptive statistics.Results: For the internal medicine unit, the average direct nursing time per patient was 1.0, 1.5, 2.2 and 2.9 h for Groups 1, 2, 3 and 4, respectively. For the surgical unit, the average direct nursing time per patient was 0.9, 1.4, 2.1 and 2.6 h for Groups 1, 2, 3 and 4, respectively. 5 and 9 additional nurses were needed in the internal medicine and surgical nursing units.Patient Contribution: This study confirmed that the optimal number of nurses was not achieved and that the nursing intensity was very high. Long‐term efforts, such as improving the nursing environment, should be made to ensure an optimal number of nurses in various nursing units.
- 28 February 2023
- Published by Wiley in Nursing Open
- Vol. 10 (6) , 3982-3991
Open AccessCalculating the optimal number of nurses based on nursing intensity by patient classification groups in general units in South Korea: A cross‐sectional study
Aim: This study aimed to calculate the total daily nursing workload and the optimal number of nurses per general unit based on the nursing intensity.Design: This study was conducted using a cross‐sectional study.Methods: Three units at one general hospital were investigated. Patient classification according to nursing needs was performed for over 10 days in each unit in September 2018. The direct and non‐direct nursing time and nursing intensity scores were analysed using descriptive statistics.Results: For the internal medicine unit, the average direct nursing time per patient was 1.0, 1.5, 2.2 and 2.9 h for Groups 1, 2, 3 and 4, respectively. For the surgical unit, the average direct nursing time per patient was 0.9, 1.4, 2.1 and 2.6 h for Groups 1, 2, 3 and 4, respectively. 5 and 9 additional nurses were needed in the internal medicine and surgical nursing units.Patient Contribution: This study confirmed that the optimal number of nurses was not achieved and that the nursing intensity was very high. Long‐term efforts, such as improving the nursing environment, should be made to ensure an optimal number of nurses in various nursing units.
- Open Access
- 30 December 2022
- Published by Wiley in International Journal of Nursing Practice
- Vol. 29 (5) , e13128
Development of a patient classification system for critical care nursing based on nursing intensity
Aim: This study aimed to develop a valid and reliable new intensive care unit nursing classification tool, including direct and indirect nursing activities, by measuring the nursing intensity provided to patients.Background: Prior tools primarily examine patients' medical records or disease severity/interactions, systematically failing to reflect comorbidity risk factors.Design: The Delphi technique was used to test the content validity of the Korean Patient Classification System on Nursing Intensity for Critical Care Nurses (KPCSNIC).Methods: Data were collected from four hospitals in two provinces from 26 December 2017 to 30 January 2018. To verify construct validity, staff nurses classified 365 patients, comparing differences by medical department and type of stay. To verify interrater reliability, data collectors and the head nurses of three intensive care units classified 87 patients.Results: The KPCSNIC had 8 categories, 44 nursing activities and 105 criteria. Reliability was high (r = .84). Construct validity was verified by revealing differences according to medical department and type of patient. Using total scores, four KPCSNIC groups were identified.Conclusion: The KPCSNIC developed in this study can support staffing for nursing intensity by providing more specific evaluation criteria. Moreover, it reflects nursing intensity, including direct and indirect nursing activities.
- 30 December 2022
- Published by Wiley in International Journal of Nursing Practice
- Vol. 29 (5) , e13128
Open AccessDevelopment of a patient classification system for critical care nursing based on nursing intensity
Aim: This study aimed to develop a valid and reliable new intensive care unit nursing classification tool, including direct and indirect nursing activities, by measuring the nursing intensity provided to patients.Background: Prior tools primarily examine patients' medical records or disease severity/interactions, systematically failing to reflect comorbidity risk factors.Design: The Delphi technique was used to test the content validity of the Korean Patient Classification System on Nursing Intensity for Critical Care Nurses (KPCSNIC).Methods: Data were collected from four hospitals in two provinces from 26 December 2017 to 30 January 2018. To verify construct validity, staff nurses classified 365 patients, comparing differences by medical department and type of stay. To verify interrater reliability, data collectors and the head nurses of three intensive care units classified 87 patients.Results: The KPCSNIC had 8 categories, 44 nursing activities and 105 criteria. Reliability was high (r = .84). Construct validity was verified by revealing differences according to medical department and type of patient. Using total scores, four KPCSNIC groups were identified.Conclusion: The KPCSNIC developed in this study can support staffing for nursing intensity by providing more specific evaluation criteria. Moreover, it reflects nursing intensity, including direct and indirect nursing activities.
- Open Access
- 1 January 2022
- Published by Korean Society of Nursing Science in Journal of Korean Academy of Nursing
- Vol. 52 (5) , 511-521
The Moderating Effect of Organizational Justice on the Relationship between Self-Efficacy and Nursing Performance in Clinical Nurses
김주라, et al. J Korean Acad Nurs. 2022 Oct;52(5):511-521. https://doi.org/10.4040/jkan.22076
- 1 January 2022
- Published by Korean Society of Nursing Science in Journal of Korean Academy of Nursing
- Vol. 52 (5) , 511-521
Open AccessThe Moderating Effect of Organizational Justice on the Relationship between Self-Efficacy and Nursing Performance in Clinical Nurses
김주라, et al. J Korean Acad Nurs. 2022 Oct;52(5):511-521. https://doi.org/10.4040/jkan.22076
- Open Access
- 10 March 2021
- Published by Wiley in Nursing Open
- Vol. 8 (4) , 1870-1878
Developing and testing a Korean patient classification system for general wards based on nursing intensity
Aim To develop a new general wards patient classification tool based on the nursing intensity level that reflects patients’ clinical characteristics and indirect nursing activities. Design A cross‐sectional design was adopted. This methodological study developed a patient classification system to sort general ward patients based on the intensity of their nursing needs and verified the validity and reliability of this classification system. Methods Thirteen experts verified the tools’ content validity. Data collectors and head nurses classified 150 patients from two hospitals with four general wards and various nurse staffing levels. Inter‐rater reliability was analysed. Staff nurses classified 846 patients following the Korean patient classification system on nursing intensity scores that reflected patients’ clinical status. Content validity was verified based on the classification results. Using K‐group cluster analysis, score ranges for four groups were identified. Results The developed tool includes 8 domains, (symptom management, infection control, nutrition and medication, personal hygiene and secretion, activity, sleep and rest, guidance in nursing/emotional support, nursing activity planning and coordination, indirect activity), 24 subdomains, 66 nursing activities and 124 criteria. Inter‐rater reliability showed high agreement.
- 10 March 2021
- Published by Wiley in Nursing Open
- Vol. 8 (4) , 1870-1878
Open AccessDeveloping and testing a Korean patient classification system for general wards based on nursing intensity
Aim To develop a new general wards patient classification tool based on the nursing intensity level that reflects patients’ clinical characteristics and indirect nursing activities. Design A cross‐sectional design was adopted. This methodological study developed a patient classification system to sort general ward patients based on the intensity of their nursing needs and verified the validity and reliability of this classification system. Methods Thirteen experts verified the tools’ content validity. Data collectors and head nurses classified 150 patients from two hospitals with four general wards and various nurse staffing levels. Inter‐rater reliability was analysed. Staff nurses classified 846 patients following the Korean patient classification system on nursing intensity scores that reflected patients’ clinical status. Content validity was verified based on the classification results. Using K‐group cluster analysis, score ranges for four groups were identified. Results The developed tool includes 8 domains, (symptom management, infection control, nutrition and medication, personal hygiene and secretion, activity, sleep and rest, guidance in nursing/emotional support, nursing activity planning and coordination, indirect activity), 24 subdomains, 66 nursing activities and 124 criteria. Inter‐rater reliability showed high agreement.
- Open Access
- 3 January 2021
- Published by Wiley in Nursing Open
- Vol. 8 (5) , 2105-2116
Integrative literature review of patient classification tools for nursing intensity evaluation: Focusing on comparison of South Korean and international tools
Aim: This study aimed to review the literature on patient classification tools (PCTs) for assessing nursing strength and to compare South Korean and international tools.Design: Integrative literature review.Methods: We searched the relevant literature published from 2000–2017 in PubMed and two electronic databases in Korea in March 2017. Twenty‐five published studies were reviewed.Results: In most Korean studies, patients were classified by PCT, which were tested to ensure validity and reliability, followed by measurement of nursing time and development of the conversion index. In international studies, PCTs used were simpler than those in Korean studies; the results of estimation for optimum nurse staffing were reported. Most studies insufficiently reflected indirect nursing needs and patients’ non‐clinical factors.The current PCTs used in Korean studies inadequately reflect the reality of nursing field. Therefore, development of new PCTs reflecting nursing intensity based on direct and indirect nursing activities is necessary.
- 3 January 2021
- Published by Wiley in Nursing Open
- Vol. 8 (5) , 2105-2116
Open AccessIntegrative literature review of patient classification tools for nursing intensity evaluation: Focusing on comparison of South Korean and international tools
Aim: This study aimed to review the literature on patient classification tools (PCTs) for assessing nursing strength and to compare South Korean and international tools.Design: Integrative literature review.Methods: We searched the relevant literature published from 2000–2017 in PubMed and two electronic databases in Korea in March 2017. Twenty‐five published studies were reviewed.Results: In most Korean studies, patients were classified by PCT, which were tested to ensure validity and reliability, followed by measurement of nursing time and development of the conversion index. In international studies, PCTs used were simpler than those in Korean studies; the results of estimation for optimum nurse staffing were reported. Most studies insufficiently reflected indirect nursing needs and patients’ non‐clinical factors.The current PCTs used in Korean studies inadequately reflect the reality of nursing field. Therefore, development of new PCTs reflecting nursing intensity based on direct and indirect nursing activities is necessary.
- Open Access
- 1 December 2020
- Published by Elsevier in Asian Nursing Research
- Vol. 14 (5) , 293-299
Turnover Rates and Factors Influencing Turnover of Korean Acute Care Hospital Nurses: A Retrospective Study Based on Survival Analysis
- 1 December 2020
- Published by Elsevier in Asian Nursing Research
- Vol. 14 (5) , 293-299
Open AccessTurnover Rates and Factors Influencing Turnover of Korean Acute Care Hospital Nurses: A Retrospective Study Based on Survival Analysis
- Open Access
- 24 October 2019
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 16 (21) , 4083
Association of Working Hours and Patient Safety Competencies with Adverse Nurse Outcomes: A Cross-Sectional Study
The environment of health organizations can determine healthcare quality and patient safety. Longer working hours can be associated with nurses’ health status and care quality, as well as work-related hazards. However, little is known about the association of hospital nurses’ working hours and patient safety competencies with adverse nurse outcomes. In this cross-sectional descriptive study, convenience sampling was employed to recruit 380 nurses from three tertiary care hospitals in South Korea. Data were collected using structured questionnaires from May to June 2016. Hierarchical linear regression analysis was used to identify the association of working hours and patient competencies with adverse nurse outcomes among 364 participants selected for analysis. Most nurses worked over 40 h/week. Working hours (β = 0.202, p < 0.001) had the strongest association with adverse nurse outcomes. Low perceived patient safety competencies (β = −0.179, p = 0.001) and frequently reporting patient safety accidents (β = 0.146, p = 0.018) were also correlated with adverse nurse outcomes. Nursing leaders should encourage work cultures where working overtime is discouraged and patient safety competencies are prioritized. Further, healthcare managers must formulate policies that secure nurses’ rights. The potential association of overtime with nurse and patient outcomes needs further exploration.
- 24 October 2019
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 16 (21) , 4083
Open AccessAssociation of Working Hours and Patient Safety Competencies with Adverse Nurse Outcomes: A Cross-Sectional Study
The environment of health organizations can determine healthcare quality and patient safety. Longer working hours can be associated with nurses’ health status and care quality, as well as work-related hazards. However, little is known about the association of hospital nurses’ working hours and patient safety competencies with adverse nurse outcomes. In this cross-sectional descriptive study, convenience sampling was employed to recruit 380 nurses from three tertiary care hospitals in South Korea. Data were collected using structured questionnaires from May to June 2016. Hierarchical linear regression analysis was used to identify the association of working hours and patient competencies with adverse nurse outcomes among 364 participants selected for analysis. Most nurses worked over 40 h/week. Working hours (β = 0.202, p < 0.001) had the strongest association with adverse nurse outcomes. Low perceived patient safety competencies (β = −0.179, p = 0.001) and frequently reporting patient safety accidents (β = 0.146, p = 0.018) were also correlated with adverse nurse outcomes. Nursing leaders should encourage work cultures where working overtime is discouraged and patient safety competencies are prioritized. Further, healthcare managers must formulate policies that secure nurses’ rights. The potential association of overtime with nurse and patient outcomes needs further exploration.
- 10 September 2018
- Published by Wiley in International Journal of Nursing Practice
- Vol. 24 (6) , e12696
Job autonomy, perceptions of organizational policy, and the safety performance of nurses
Aims: This study aimed to identify the relationship between nurses' job autonomy, perceptions of organizational policy, and safety performance by identifying the safety performance predictors of nurses working in acute health care settings in South Korea.Methods: Using data from a structured questionnaire, this cross‐sectional descriptive study assessed the relationship between nurses' job autonomy, perceptions of organizational policy, and safety performance. In 2016, of the 290 nurses from nine acute care hospitals in South Korea invited to participate in the survey, 254 successfully did. Using cross‐sectional data, characteristics of hospitals and nurses were analysed with t tests, one‐way analyses of variance, Pearson correlations, and regression models.Results: On a scale of one to five, the mean job autonomy was 3.37, mean perceptions of organizational policy was 3.09, and mean safety performance was 3.75. Statistically significant positive correlations were found among job autonomy, perceptions of organizational policy, and safety performance. Multiple regression results found 44% of the variation in safety performance explained by job autonomy, length of employment, and perceptions of organizational policy.Conclusion: Job autonomy and perceptions of organizational policy were positively related to safety performance. Hospital executives and nurse managers should work to enhance job autonomy and positive perceptions of organizational policy, to contribute to improving patient safety.
- 10 September 2018
- Published by Wiley in International Journal of Nursing Practice
- Vol. 24 (6) , e12696
Job autonomy, perceptions of organizational policy, and the safety performance of nurses
Aims: This study aimed to identify the relationship between nurses' job autonomy, perceptions of organizational policy, and safety performance by identifying the safety performance predictors of nurses working in acute health care settings in South Korea.Methods: Using data from a structured questionnaire, this cross‐sectional descriptive study assessed the relationship between nurses' job autonomy, perceptions of organizational policy, and safety performance. In 2016, of the 290 nurses from nine acute care hospitals in South Korea invited to participate in the survey, 254 successfully did. Using cross‐sectional data, characteristics of hospitals and nurses were analysed with t tests, one‐way analyses of variance, Pearson correlations, and regression models.Results: On a scale of one to five, the mean job autonomy was 3.37, mean perceptions of organizational policy was 3.09, and mean safety performance was 3.75. Statistically significant positive correlations were found among job autonomy, perceptions of organizational policy, and safety performance. Multiple regression results found 44% of the variation in safety performance explained by job autonomy, length of employment, and perceptions of organizational policy.Conclusion: Job autonomy and perceptions of organizational policy were positively related to safety performance. Hospital executives and nurse managers should work to enhance job autonomy and positive perceptions of organizational policy, to contribute to improving patient safety.
- Open Access
- 29 September 2016
- Published by Springer Nature in Human Resources for Health
- Vol. 14 (1) , 1-11
Hospital preferences of nursing students in Korea: a discrete choice experiment approach
DCE was applied to investigate nursing students’ preferred hospital choice criteria and to investigate the trends in the trade-offs by calculating the marginal rate of substitution between these criteria. This study identified the properties of the hospitals primarily selected by nursing students, and aims to estimate the monetary value of each attribute. Based on discussions and in-depth interviews with nursing students’ focus groups and a literature review, we created a discrete choice experiment (DCE) that assessed how students’ stated preference for a certain hospital choice was influenced by various job attributes: higher salary, location, hospital type, salary per year, provision of a dormitory, etc. We applied this DCE to nursing students in South Korea using a brief structured questionnaire, and we used conditional logit models to estimate the utility of each job’s attributes. Willingness to pay (WTP) was estimated as the ratio of the value of the coefficient of interest to the negative of the cost attribute. Complete data for the DCE analysis were available for 702 nursing students. In the main effect mixed logit model, the welfare system and organizational culture were most strongly associated with job preference. Location, hospital type, and opportunity to upgrade qualifications had a negative influence on hospital choice. The WTP threshold was 7,043,000 KRW for the welfare system and 9,928,000 KRW for the organizational culture (relation-oriented). Better nursing working conditions, such as a positive organizational culture and the provision of a welfare system, can improve the motivation and applications for hospitals in rural areas.
- 29 September 2016
- Published by Springer Nature in Human Resources for Health
- Vol. 14 (1) , 1-11
Open AccessHospital preferences of nursing students in Korea: a discrete choice experiment approach
DCE was applied to investigate nursing students’ preferred hospital choice criteria and to investigate the trends in the trade-offs by calculating the marginal rate of substitution between these criteria. This study identified the properties of the hospitals primarily selected by nursing students, and aims to estimate the monetary value of each attribute. Based on discussions and in-depth interviews with nursing students’ focus groups and a literature review, we created a discrete choice experiment (DCE) that assessed how students’ stated preference for a certain hospital choice was influenced by various job attributes: higher salary, location, hospital type, salary per year, provision of a dormitory, etc. We applied this DCE to nursing students in South Korea using a brief structured questionnaire, and we used conditional logit models to estimate the utility of each job’s attributes. Willingness to pay (WTP) was estimated as the ratio of the value of the coefficient of interest to the negative of the cost attribute. Complete data for the DCE analysis were available for 702 nursing students. In the main effect mixed logit model, the welfare system and organizational culture were most strongly associated with job preference. Location, hospital type, and opportunity to upgrade qualifications had a negative influence on hospital choice. The WTP threshold was 7,043,000 KRW for the welfare system and 9,928,000 KRW for the organizational culture (relation-oriented). Better nursing working conditions, such as a positive organizational culture and the provision of a welfare system, can improve the motivation and applications for hospitals in rural areas.