Korean Journal of Family Medicine

"Jae-Min Park"

Original Articles

Testing the reliability and validity of the Korean version of the Pittsburgh Sleep Quality Index using Fitbit devices: a cross-sectional analysis: Si-Yeon Lee, Ja-Eun Choi, Ji-Won Lee, Yaeji Lee, Jae-Min Park, Kyung-Won Hong; Korean J Fam Med 2025;46(1):42-47. Published online April 22, 2024; DOI: https://doi.org/10.4082/kjfm.23.0166

Background
Sleep disorders and insomnia are prevalent worldwide, with negative health outcomes. The Pittsburgh Sleep Quality Index (PSQI) is a widely used self-report assessment tool for evaluating sleep quality, comprising seven subdomains. The Korean version of the PSQI (PSQI-K) has been tested for reliability and validity in small sample sizes but lacks large-scale validation using objective measures.
Methods
This study was conducted with 268 Korean adults attending health check programs. Participants completed the PSQI-K questionnaire and wore Fitbit devices (Fitbit Inc., USA) to ascertain sleep parameters. Reliability was analyzed using the Cronbach’s α coefficient, and construct validity was determined through factor analysis. Criteria validity was assessed by correlating their index scores with Fitbit sleep parameters. We identified the optimal cutoff for detecting sleep disorders.
Results
The Cronbach’s α coefficient was 0.61, indicating adequate internal consistency. Factor analysis revealed three factors, explaining 48.2% of sleep quality variance. The index scores were negatively correlated with Fitbit sleep efficiency, total sleep time, and number of awakenings (P<0.05). The optimal cutoff point for identifying sleep disorder groups was ≥6.
Conclusion
The PSQI-K demonstrated good reliability and validity when correlated with Fitbit sleep parameters, offering a practical screening tool for identifying sleep disorders among Korean adults. Cutoff scores can help identify patients for sleep interventions. However, further large-scale studies are required to validate these findings.

Citations

Citations to this article as recorded by

Association of work ability with job burnout and sleep quality among biosafety laboratory personnel in Xinjiang, China: a cross-sectional study
Keke Ju, Ruikai Wu, Jing Yu, Lei Ding, Mengjie Xia, Jiwen Liu, Yaoqin Lu
Frontiers in Public Health.2025;[Epub] CrossRef
Validation of the Korean version of the Sleep Hygiene Practice Scale in a Non-Clinical Population
Dongyeop Kim, Ji Young Yun, Hye Ah Lee, Pamela Song, Heeyoung Ahn, Chien-Ming Yang, Jee Hyun Kim
Behavioral Sleep Medicine.2024; 22(6): 791. CrossRef
The relationship between sleep quality and happiness among preclinical students in a medical school
Rusdiah Ruzanna Jusoh, Kavimitha G Krishnasamy, Saila Dharishinee Alagu, Pretha Mohan, Jeslyn Tan Guan Qian, Elayevenee Elanthevan, Muhammad Zulfiqah Sadikan, Haryati Ahmad Hairi
Journal of Education Technology in Health Sciences.2024; 11(3): 92. CrossRef

2,439 View
93 Download
2 Web of Science
3 Crossref

Association between Relative Handgrip Strength and Insulin Resistance in Korean Elderly Men without Diabetes: Findings of the 2015 Korea National Health Nutrition Examination Survey: Kwang-Chae Joo, Da-Hye Son, Jae-Min Park; Korean J Fam Med 2022;43(3):199-205. Published online May 20, 2022; DOI: https://doi.org/10.4082/kjfm.21.0138

Abstract
PDF

Background
Evidence regarding the association between handgrip strength (HGS) and insulin resistance in a non-diabetic population is scarce. This study aimed to investigate the association between relative HGS and insulin resistance in older men without diabetes, using a representative sample of the Korean male population.
Methods
The study population comprised 206 participants aged 65–80 years, selected from the 2015 Korea National Health and Nutrition Examination Survey. Insulin resistance was defined as the upper tertile of the homeostatic model assessment of insulin resistance (HOMA-IR). Odds ratios and 95% confidence intervals for insulin resistance were assessed using multiple logistic regression analyses after adjusting for confounding variables.
Results
The prevalence of insulin resistance decreased with increasing relative HGS. The prevalence in the T1, T2, and T3 groups was 46.0%, 32.2%, and 26.4%, respectively. Compared with the individuals in the highest tertile of relative HGS, the odds ratio (95% confidence interval) for insulin resistance in individuals in the lowest quartile was 2.82 (1.10–7.21) after adjusting for age, smoking, alcohol consumption, aerobic exercise, resistance exercise, systolic blood pressure, total cholesterol, residential area, household income, and education level.
Conclusion
Lower relative HGS was inversely associated with an increased risk of insulin resistance in older Korean men without diabetes. In clinical practice, relative HGS, which is a simple and inexpensive tool, could be a useful measure for identifying older men with insulin resistance. Moreover, these findings suggest that muscle strengthening exercises should be considered to reduce insulin resistance and increase insulin sensitivity.

Citations

Citations to this article as recorded by

Analysis of Handgrip Strength with Insulin Resistance in Male and Female Indonesian Adults
Liong Boy Kurniawan, Sabilla Sheridan, Andi Wali Syafaat, Andi Ainun Zulkiah Surur, Naurah Nadhifah, Ichlas Nanang Afandi, Andi Ariyandy, Muhammad Iqbal Basri, Aminuddin Aminuddin
INDONESIAN JOURNAL OF CLINICAL PATHOLOGY AND MEDICAL LABORATORY.2025; 31(2): 145. CrossRef
Guidelines for physical activity counseling in primary healthcare clinics
Yun Jun Yang
Journal of the Korean Medical Association.2024; 67(4): 265. CrossRef
Dietary patterns and the risk of diabetes in Korean adults: A cross-sectional and prospective cohort study
Jiyoung Hwang, Hyesook Kim, Oran Kwon
Nutrition.2024; 125: 112491. CrossRef
Correlation between low handgrip strength and metabolic syndrome in older adults: a systematic review
Joana da Costa d'Avila, Talel Georges Moreira El Nabbout, Hayfa Georges Moreira El Nabbout, Aline dos Santos Silva, Antonio Carlos Barbosa Ramos, Eliana Rosa da Fonseca, Aluana Santana Carlos, Rodrigo de Azeredo Siqueira
Archives of Endocrinology and Metabolism.2024;[Epub] CrossRef
Handgrip strength in type 2 diabetics and nondiabetics: A comparative cross-sectional study among adults in rural Mysore
Deepak ANIL, M. RAKESH, Shabeena AKBAR, Vijaylakshmi Rao VADAGA, D. Sunil KUMAR
Journal of Integrative Nursing.2024; 6(3): 150. CrossRef
Association of relative handgrip strength on the development of diabetes mellitus in elderly Koreans
Yeo Ju Sohn, Hong Soo Lee, Hasuk Bae, Hee Cheol Kang, Hyejin Chun, Insun Ryou, Eun Jee Chang, Sungchan Kang, Sang Wha Lee, Kyung Won Shim, Mario Ulises Pérez-Zepeda
PLOS ONE.2024; 19(10): e0309558. CrossRef
Association between handgrip strength and mortality risk among cardiovascular disease patients: A cohort study from the NHANES 2011–2014
Zhengjie Qin, Youhua Guo, Weilin Yang, Zhuoran Kuang, Guoming Li
Journal of the Formosan Medical Association.2024;[Epub] CrossRef
Sarcopenia and osteosarcopenia among patients undergoing hemodialysis
Ting Xiang, Ping Fu, Li Zhou
Frontiers in Endocrinology.2023;[Epub] CrossRef
Relationships of neck circumference and abdominal obesity with insulin resistance considering relative handgrip strength in middle-aged and older individuals
Kayoung Lee
Archives of Gerontology and Geriatrics.2023; 114: 105097. CrossRef

5,023 View
114 Download
6 Web of Science
9 Crossref

Association of Geriatric Syndromes with Urinary Incontinence according to Sex and Urinary-Incontinence–Related Quality of Life in Older Inpatients: A Cross-Sectional Study of an Acute Care Hospital: Kyoung Jin Kim, Jinyoung Shin, Jaekyung Choi, Jae-Min Park, Hyoung Keun Park, Jongmin Lee, Seol-Heui Han; Korean J Fam Med 2019;40(4):235-240. Published online July 20, 2019; DOI: https://doi.org/10.4082/kjfm.18.0011

Abstract
PDF

Background
Geriatric syndromes are associated with morbidity and poor quality of life (QOL). Urinary incontinence (UI) is one of the most prevalent geriatric syndromes. However, there is little research on the association of UI and UI-related QOL with other geriatric syndromes. We investigated the relationship between geriatric syndromes and UI according to gender and UI-related QOL among older inpatients.
Methods
This study was conducted among 444 older inpatients (aged 65 years and older) between October 2016 and July 2017. We examined geriatric syndromes and related factors involving cognitive impairment, delirium, depression, mobility decline, polypharmacy, undernutrition, pain, and fecal incontinence. UI-related QOL was assessed using the International Consultation on Incontinence Questionnaire-Short Form. Multiple logistic regression analysis was used to evaluate these associations.
Results
Geriatric syndromes and related factors were associated with UI. Mobility decline (odds ratio [OR], 4.16; 95% confidence interval [CI], 2.29–7.56), polypharmacy (OR, 3.35; 95% CI, 1.89–5.92), and pain (OR, 6.80; 95% CI, 3.53–13.09) were related to UI in both genders. Especially, delirium (OR, 7.55; 95% CI, 1.61–35.44) and fecal incontinence (OR, 10.15; 95% CI, 2.50–41.17) were associated with UI in men, while cognitive impairment (OR, 4.19; 95% CI, 1.14–15.44) was significantly associated with UI in women. Patients with depression were more likely to have poor UI-related QOL (OR, 8.54; 95% CI, 1.43–51.15).
Conclusion
UI was associated with different geriatric syndromes and related factors according to gender. Care for patients with depression, related to poor UI-related QOL, should be considered in primary care to improve the UI-related QOL of these individuals.

Citations

Citations to this article as recorded by

Impact of Polypharmacy and Risk Factors for Exacerbation of Lower Urinary Tract Symptoms in Patients with Urological Conditions: A Retrospective Study in a Japanese Municipal Hospital
Shunsuke Yoshizawa, Tomoya Tachi, Yuta Takahashi, Satoshi Aoyama, Yoshihiro Noguchi, Kazuhide Tanaka, Masahiro Yasuda, Takashi Mizui, Hisao Komeda, Tomoaki Yoshimura, Hitomi Teramachi
Biological and Pharmaceutical Bulletin.2024; 47(4): 818. CrossRef
PREVALÊNCIA DA POLIFARMÁCIA ASSOCIADA A FUNCIONALIDADE EM PESSOAS IDOSAS HOSPITALIZADAS
Danielle Bordin, Laurieli Pereira de Oliveira, Lara Simone Messias Floriano, Carla Luiza Da Silva, Everson Augusto Krum, Clóris Regina Blanski Grden
Revista Enfermagem Atual In Derme.2024; 98(3): e024347. CrossRef
Prevalence of urinary incontinence and its associated predictor and Self-care behavior among the elderly females in Chaiyaphum Province, Thailand: Cross-sectional study
Patchareepon Chompoowisate, Sumattana Glangkarn, Chaloemporn Namyota
Journal of Education and Health Promotion.2024;[Epub] CrossRef
Identification of Factors Affecting the Increased Percentage of CGA Recommendations among Patients on Geriatric Ward
Justyna Gołębiowska, Małgorzata Szymala-Pędzik, Joanna Żórawska, Małgorzata Sobieszczańska, Siddarth Agrawal
International Journal of Environmental Research and Public Health.2023; 20(3): 2065. CrossRef
Factors Affecting Urinary Incontinence-related Quality of Life in Geriatric Patients: An observational Cross-Sectional Study in a Tertiary Hospital Urology Clinic in Turkey
Reha Girgin, Engin Denizhan Demirkıran
Iberoamerican Journal of Medicine.2022; 4(4): 177. CrossRef
The effect of incontinence on depression among older adults: a longitudinal study in China
Y. Zhang
Public Health.2022; 212: 58. CrossRef
Urinary incontinence and related quality of life among elderly women in Tabas, South Khorasan, Iran
Zahra Najafi, Mohammad Ali Morowatisharifabad, Sara Jambarsang, Hassan Rezaeipandari, Roya Hemayati
BMC Urology.2022;[Epub] CrossRef
Urinary incontinence and the association with depression, stress, and self-esteem in older Korean Women
Hoo-yeon Lee, Yumie Rhee, Kui Son Choi
Scientific Reports.2021;[Epub] CrossRef
Prevalence of sarcopenia in older women with pelvic floor dysfunction
Rávida R.L. Silva, Janaína F.V. Coutinho, Camila T.M. Vasconcelos, José Ananias Vasconcelos Neto, Rachel Gabriel B. Barbosa, Marília B. Marques, Dayana M. Saboia, Juliana C. Maia
European Journal of Obstetrics & Gynecology and Reproductive Biology.2021; 263: 159. CrossRef
Kontinenz und Mobilität – zwei Seiten einer Medaille?
Sigrid Ege
DMW - Deutsche Medizinische Wochenschrift.2021; 146(15): 959. CrossRef
An Exergame Solution for Personalized Multicomponent Training in Older Adults
Vânia Guimarães, Elsa Oliveira, Alberto Carvalho, Nuno Cardoso, Johannes Emerich, Chantale Dumoulin, Nathalie Swinnen, Jacqueline De Jong, Eling D. de Bruin
Applied Sciences.2021; 11(17): 7986. CrossRef
The prevalence and risk factors for urinary incontinence among inpatients, a multicenter study from Turkey
Sumru Savas, Bülent Saka, Sibel Akın, Ilker Tasci, Pinar Tosun Tasar, Asli Tufan, Hakan Yavuzer, Cafer Balci, Gülbüz Sezgin, Mehmet Akif Karan, Fatma Ozge Kayhan Kocak, Zeynel Abidin Ozturk, Murat Varli, Deniz Suna Erdinçler, Mert Esme, Selim Nalbant, Mus
Archives of Gerontology and Geriatrics.2020; 90: 104122. CrossRef
Possible relationship between prescription medications and urinary dysfunction in elderly home health care patients
Sayaka Miyazaki, Shizuo Yamada, Sadanori Higashino, Yoriko Watanabe, Katsuyoshi Mizukami
Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics.2019; 56(3): 301. CrossRef

7,553 View
151 Download
12 Web of Science
13 Crossref

Association of High-Risk Drinking with Metabolic Syndrome and Its Components in Elderly Korean Men: The Korean National Health and Nutrition Examination Survey 2010–2012: Ji-Hyun Kim, Jeong-Im Ha, Jae-Min Park, Ji Sun Lee, Ah-Leum Ahn, Eun-Jung Oh, Jae-Kyung Choi, Hyuk-Jung Kweon, Dong-Yung Cho; Korean J Fam Med 2018;39(4):233-238. Published online July 6, 2018; DOI: https://doi.org/10.4082/kjfm.17.0024

Abstract
PDF

Background
Previous studies have examined the association between alcohol consumption and metabolic syndrome (MetS) in adults, but studies in the elderly are lacking. We examined the relationship between high-risk alcohol consumption and MetS in elderly Korean men using the Alcohol Use Disorders Identification Test (AUDIT) questionnaire from the 2010–2012 Korean National Health and Nutrition Examination Survey.
Methods
Among 25,534 subjects, 2,807 were men >60 years of age; after exclusions, we included 2,088 men in the final analysis. We categorized the study participants into three groups according to AUDIT score: low risk (0–7), intermediate risk (8–14), and high risk (≥15 points).
Results
Among the study population, 17.0% of the men were high-risk drinkers, who had the highest mean waist circumference, systolic and diastolic blood pressure (BP), fasting plasma glucose (FPG), and triglyceride (TG) levels. The overall prevalence of MetS was 41.9% in the elderly men, and it was significantly higher in the group with high (48.3%) versus low (31.9%) AUDIT scores. The prevalence of MetS components (elevated BP, high FPG, high TG, and low high-density lipoprotein cholesterol) was associated with a high AUDIT score. The odds ratios (95% confidence interval) of the high-risk group for MetS, elevated BP, and high TG were 1.40 (1.03–1.89), 1.82 (1.28– 2.60), and 1.77 (1.30–2.41) after adjustment for confounding variables.
Conclusion
AUDIT score was correlated with most MetS components in elderly Korean men.

Citations

Citations to this article as recorded by

Sex-Specific Energy Intakes and Physical Activity Levels According to the Presence of Metabolic Syndrome in Korean Elderly People: Korean National Health and Nutrition Examination Survey 2016–2018
Won-Sang Jung, Hun-Young Park, Sung-Woo Kim, Kiwon Lim
International Journal of Environmental Research and Public Health.2020; 17(15): 5416. CrossRef
Cardiovascular effects of alcohol: A double-edged sword / how to remain at the nadir point of the J-Curve?
Theodora A. Manolis, Antonis A. Manolis, Antonis S. Manolis
Alcohol.2019; 76: 117. CrossRef
High-Risk Drinking in the Elderly
Seung-Won Oh
Korean Journal of Family Medicine.2018; 39(4): 209. CrossRef

7,204 View
130 Download
3 Web of Science
3 Crossref

Serum Ferritin Is Differentially Associated with Anti-oxidative Status and Insulin Resistance in Healthy Obese and Non-obese Women: Jee-Yon Lee, Jae-Min Park, Jung-Ah Hong, Duk-Chul Lee, Jee-Aee Im, Ji-Won Lee; Korean J Fam Med 2012;33(4):205-210. Published online July 25, 2012; DOI: https://doi.org/10.4082/kjfm.2012.33.4.205

Abstract
PDF

Background

Ferritin is known to be associated with insulin resistance (IR) and oxidative stress; however, recent studies have shown that there is an association between ferritin and anti-oxidative status. To date, the biphasic response of ferritin to oxidative stress has not been fully evaluated. Thus, we investigated the association between ferritin and IR and anti-oxidative status in obese and non-obese women.

Methods

We evaluated the homeostasis model assessment of insulin resistance (HOMA-IR) and total anti-oxidant status (TAS) in a total of 111 healthy women between the ages of 32 and 68 years.

Results

In all of the study subjects, ferritin levels were positively correlated with age (r = 0.38, P < 0.001), body mass index (r = 0.24, P = 0.01), TAS (r = 0.38, P < 0.001) and HOMA-IR (r = 0.20, P = 0.04). In the subgroup analysis, ferritin levels were correlated with age (r = 0.39, P < 0.001) and TAS (r = 0.43, P < 0.001) in the non-obese group and with insulin (r = 0.50, P = 0.02) and HOMA-IR (r = 0.52, P = 0.01) levels in the obese group. On stepwise multiple linear regression analysis, ferritin was found to be independently associated with TAS (B = 177.16, P < 0.0001) in the non-obese group and independently associated with HOMA-IR (B = 30.36, P = 0.01) in the obese group.

Conclusion

Our findings suggest ferritin is associated with IR in obese women and with anti-oxidative status in non-obese women. Further studies are warranted to elucidate the precise role of ferritin in obesity.

Citations

Citations to this article as recorded by

Gender difference in the relationship between the ferritin and homeostasis model assessment of insulin resistance in non-diabetic Korean adults
Hyun Yoon, Yoon Sik Kim, Jun Ho Lee, Mi Young Gi, Ju Ae Cha, Jeong Min Seong, James Fielding Hejtmancik
PLOS ONE.2018; 13(6): e0199465. CrossRef
Serum ferritin level as an early indicator of metabolic dysregulation in young obese adults — a cross-sectional study
Harshitha Hitha, Damodara Gowda, Amrit Mirajkar
Canadian Journal of Physiology and Pharmacology.2018; 96(12): 1255. CrossRef