title: The association of falls and various physical activities in Chinese nonagenarians/centenarians.
abstract: Little is known about the relationship between falls and various physical activities in the oldest old people. This study was conducted to observe the association of fall with various exercise habits and farm work in very old people. In this cross-sectional study of a Chinese cohort of men and women aged 90-108 years, we observed the association of fall with habitual (current and former) farm work and exercise in very old people. The population included 805 unrelated Chinese nonagenarians and centenarians (68.94% of the subjects were women, with a mean age of 93.70 years). In the women, the subjects with a continuing exercise habit had a significantly lower prevalence of fall than those without an exercise habit; the subjects who had never exercised had a significantly higher prevalence of fall than those who exercised. In men, there was no significant difference in the prevalence of these habits between the subjects with and without fall. After adjusting for age, gender, body mass index, educational levels, life styles, vision levels and temperament, we found that current habitual farm work (OR=1.755 95% CI (1.107, 2.780)) and exercise OR=0.666 95% CI (0.445, 0.997) had a significant odds ratio for fall; among the females, continuing exercise (vs. having never exercised) had a significant odds ratio for fall (OR=0.620 95% CI (0.395, 0.973)). Habitual farm work might be positively associated with fall; however, habitual exercise might be negatively associated with fall in Chinese long-lived old people.
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Si Chuan University, No. 37 Guoxuexiang, Chengdu 610041, Sichuan Province, China; The Center of Coordination and Innovation for Aging Care and Health Promotion of Sichuan, Chengdu, China.
authors.forename: Qiukui
authors.initials: Q
authors.lastname: Hao
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Si Chuan University, No. 37 Guoxuexiang, Chengdu 610041, Sichuan Province, China; The Center of Coordination and Innovation for Aging Care and Health Promotion of Sichuan, Chengdu, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Yang
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Si Chuan University, No. 37 Guoxuexiang, Chengdu 610041, Sichuan Province, China; The Center of Coordination and Innovation for Aging Care and Health Promotion of Sichuan, Chengdu, China.
authors.forename: Li
authors.initials: L
authors.lastname: Luo
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Si Chuan University, No. 37 Guoxuexiang, Chengdu 610041, Sichuan Province, China; The Center of Coordination and Innovation for Aging Care and Health Promotion of Sichuan, Chengdu, China.
authors.forename: Shan
authors.initials: S
authors.lastname: Hai
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Si Chuan University, No. 37 Guoxuexiang, Chengdu 610041, Sichuan Province, China; The Center of Coordination and Innovation for Aging Care and Health Promotion of Sichuan, Chengdu, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Ding
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Si Chuan University, No. 37 Guoxuexiang, Chengdu 610041, Sichuan Province, China; The Center of Coordination and Innovation for Aging Care and Health Promotion of Sichuan, Chengdu, China. Electronic address: Birongdong@163.com.
authors.forename: Birong
authors.initials: B
authors.lastname: Dong
mesh_terms: D000058:Accidental Falls / Q000706:statistics & numerical data*; D000367:Age Factors; D000369:Aged, 80 and over; D015992:Body Mass Index; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D015577:Geriatric Assessment / Q000379:methods*; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D016017:Odds Ratio; D015995:Prevalence; D018570:Risk Assessment / Q000379:methods*; D014947:Wounds and Injuries / Q000453:epidemiology* / Q000209:etiology
keywords: Cross-sectional; Exercise; Fall; Farming work; Oldest old; Physical activity