The Life Functioning Scale: A Measurement Tool Developed to Assess the Physical Functioning Abilities of Community-Dwelling Adults Aged 50 Years or Older
Background This study aimed to develop an instrument for assessing physical functioning among adults aged 50 years or older living in the community. Methods Based on a review of various national health surveys and cohort studies, a 144-item bank was constructed for assessing physical functioning. Fo...
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Korea Geriatrics Society
2024-12-01
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| Series: | Annals of Geriatric Medicine and Research |
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| Online Access: | http://www.e-agmr.org/upload/pdf/agmr-24-0087.pdf |
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| author | Yunhwan Lee Eunsaem Kim Jihye Yun Jaewon Choi Jinhee Kim Chang Won Won Miji Kim Soongnang Jang Kyungwon Oh Jihee Kim |
| author_facet | Yunhwan Lee Eunsaem Kim Jihye Yun Jaewon Choi Jinhee Kim Chang Won Won Miji Kim Soongnang Jang Kyungwon Oh Jihee Kim |
| author_sort | Yunhwan Lee |
| collection | DOAJ |
| description | Background This study aimed to develop an instrument for assessing physical functioning among adults aged 50 years or older living in the community. Methods Based on a review of various national health surveys and cohort studies, a 144-item bank was constructed for assessing physical functioning. Focus group interviews were conducted among adults aged 50 years or older to investigate their level of understanding of 60 selected items, followed by a pretest of the items on a nationally representative sample (n=508). The final 25-item questionnaire was tested on an independent sample (n=259) for validity and reliability based on classical test and item response theories. Predictive validity at the 6-month follow-up was tested in a separate sample (n=263). Results The newly developed Life Functioning (LF) scale assessed the dimensions of functional limitations, disabilities, and social activities. The scale satisfied a one-dimensionality assumption with good item fit and demonstrated criterion validity, construct validity, high internal consistency (Cronbach’s alpha=0.93), and test-retest reliability (intra-class correlation coefficient=0.84; 95% confidence interval, 0.76–0.89). The LF scale comprised 25 items with a total score ranging from 0 to 100. Higher scores indicated higher levels of functioning. The LF score was significantly associated with the Physical Functioning score at 6 months. Conclusion The LF scale was developed to assess the physical functioning of people in their late midlife or older. Future studies should test the instrument on a national sample and evaluate its application in diverse population subgroups. |
| format | Article |
| id | doaj-art-078e28450d97481d91147b8252dc23d9 |
| institution | Kabale University |
| issn | 2508-4798 2508-4909 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Korea Geriatrics Society |
| record_format | Article |
| series | Annals of Geriatric Medicine and Research |
| spelling | doaj-art-078e28450d97481d91147b8252dc23d92025-01-06T08:12:12ZengKorea Geriatrics SocietyAnnals of Geriatric Medicine and Research2508-47982508-49092024-12-0128441041810.4235/agmr.24.00871148The Life Functioning Scale: A Measurement Tool Developed to Assess the Physical Functioning Abilities of Community-Dwelling Adults Aged 50 Years or OlderYunhwan Lee0Eunsaem Kim1Jihye Yun2Jaewon Choi3Jinhee Kim4Chang Won Won5Miji Kim6Soongnang Jang7Kyungwon Oh8Jihee Kim9 Department of Preventive Medicine and Public Health, Ajou University School of Medicine, Suwon, Korea Department of Preventive Medicine and Public Health, Ajou University School of Medicine, Suwon, Korea Division of Population Health Research, Department of Precision Medicine, Korea National Institute of Health, Korea Disease Control and Prevention Agency, Osong, Korea Center for Teaching and Learning, Ajou University, Suwon, Korea Department of Preventive Medicine and Public Health, Ajou University School of Medicine, Suwon, Korea Department of Family Medicine, Kyung Hee Medical Center, Kyung Hee University College of Medicine, Seoul, Korea Department of Health Sciences and Technology, Kyung Hee University College of Medicine, Seoul, Korea Department of Nursing, Red Cross College of Nursing, Chung-Ang University, Seoul, Korea Division of Health and Nutrition Survey and Analysis, Bureau of Chronic Disease Prevention and Control, Korea Disease Control and Prevention Agency, Osong, Korea Division of Health and Nutrition Survey and Analysis, Bureau of Chronic Disease Prevention and Control, Korea Disease Control and Prevention Agency, Osong, KoreaBackground This study aimed to develop an instrument for assessing physical functioning among adults aged 50 years or older living in the community. Methods Based on a review of various national health surveys and cohort studies, a 144-item bank was constructed for assessing physical functioning. Focus group interviews were conducted among adults aged 50 years or older to investigate their level of understanding of 60 selected items, followed by a pretest of the items on a nationally representative sample (n=508). The final 25-item questionnaire was tested on an independent sample (n=259) for validity and reliability based on classical test and item response theories. Predictive validity at the 6-month follow-up was tested in a separate sample (n=263). Results The newly developed Life Functioning (LF) scale assessed the dimensions of functional limitations, disabilities, and social activities. The scale satisfied a one-dimensionality assumption with good item fit and demonstrated criterion validity, construct validity, high internal consistency (Cronbach’s alpha=0.93), and test-retest reliability (intra-class correlation coefficient=0.84; 95% confidence interval, 0.76–0.89). The LF scale comprised 25 items with a total score ranging from 0 to 100. Higher scores indicated higher levels of functioning. The LF score was significantly associated with the Physical Functioning score at 6 months. Conclusion The LF scale was developed to assess the physical functioning of people in their late midlife or older. Future studies should test the instrument on a national sample and evaluate its application in diverse population subgroups.http://www.e-agmr.org/upload/pdf/agmr-24-0087.pdfagedmiddle agedfunctional statusvalidityreproducibility of resultshealth surveys |
| spellingShingle | Yunhwan Lee Eunsaem Kim Jihye Yun Jaewon Choi Jinhee Kim Chang Won Won Miji Kim Soongnang Jang Kyungwon Oh Jihee Kim The Life Functioning Scale: A Measurement Tool Developed to Assess the Physical Functioning Abilities of Community-Dwelling Adults Aged 50 Years or Older Annals of Geriatric Medicine and Research aged middle aged functional status validity reproducibility of results health surveys |
| title | The Life Functioning Scale: A Measurement Tool Developed to Assess the Physical Functioning Abilities of Community-Dwelling Adults Aged 50 Years or Older |
| title_full | The Life Functioning Scale: A Measurement Tool Developed to Assess the Physical Functioning Abilities of Community-Dwelling Adults Aged 50 Years or Older |
| title_fullStr | The Life Functioning Scale: A Measurement Tool Developed to Assess the Physical Functioning Abilities of Community-Dwelling Adults Aged 50 Years or Older |
| title_full_unstemmed | The Life Functioning Scale: A Measurement Tool Developed to Assess the Physical Functioning Abilities of Community-Dwelling Adults Aged 50 Years or Older |
| title_short | The Life Functioning Scale: A Measurement Tool Developed to Assess the Physical Functioning Abilities of Community-Dwelling Adults Aged 50 Years or Older |
| title_sort | life functioning scale a measurement tool developed to assess the physical functioning abilities of community dwelling adults aged 50 years or older |
| topic | aged middle aged functional status validity reproducibility of results health surveys |
| url | http://www.e-agmr.org/upload/pdf/agmr-24-0087.pdf |
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