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Incidence of certified need of care in the long‐term care insurance system and its risk factors in the elderly of J apanese population‐based cohorts: The ROAD study
Author(s) -
Akune Toru,
Muraki Shigeyuki,
Oka Hiroyuki,
Tanaka Sakae,
Kawaguchi Hiroshi,
Tokimura Fumiaki,
Yoshida Hideyo,
Suzuki Takao,
Nakamura Kozo,
Yoshimura Noriko
Publication year - 2014
Publication title -
geriatrics and gerontology international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.823
H-Index - 57
eISSN - 1447-0594
pISSN - 1444-1586
DOI - 10.1111/ggi.12155
Subject(s) - medicine , sarcopenia , incidence (geometry) , sarcopenic obesity , population , underweight , body mass index , physical therapy , long term care insurance , grip strength , certification , proportional hazards model , risk factor , gerontology , long term care , environmental health , overweight , nursing , physics , optics , political science , law
Aim To examine the incidence of certified need of care in the national long‐term care insurance ( LTCI ) system, and to determine its risk factors in the elderly of J apanese population‐based cohorts of the R esearch on O steoarthritis/ O steoporosis A gainst D isability ( ROAD ) study. Methods Of the 3040 participants in the baseline examination of the ROAD study, we enrolled 1773 (699 men, 1074 women) aged 65 years or older who were not certified as in need of care level elderly at baseline. Participants were followed for incident certification of need of care in the LTCI system. Associated factors in the baseline examination with occurrence were determined by multivariate Cox proportional hazards regression analysis. Muscle dysfunction was defined in accordance with the E uropean W orking G roup on S arcopenia in O lder P eople algorithm for screening sarcopenia. Results A total of 54 men and 115 women were certified as in need of care level elderly during the average 4.0‐year follow up. The incidence was 2.0 and 2.5 per 100 person‐years in men and women, respectively. Identified risk factors were region, age, body mass index <18.5 or ≥27.5 kg/m 2 , grip strength, knee extension torque, usual gait speed, chair stand time and muscle dysfunction. Conclusions Both underweight and obesity, as well as low muscle strength and physical ability, are risk factors for certification of need of care. Considering muscle dysfunction is a risk factor for occurrence, screened individuals are recommended to receive early intervention programs regardless of muscle volume. Geriatr Gerontol Int 2014; 14: 695–701.