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Association of sleep duration with risk of all-cause mortality and poor quality of dying in oldest-old people: a community-based longitudinal study.
Hou, Chengbei; Lin, Yinan; Zimmer, Zachary; Tse, Lap Ah; Fang, Xianghua.
Afiliação
  • Hou C; Center for Evidence-Based Medicine, Xuanwu Hospital, Capital Medical University, Changchun Street No. 45, Xicheng District, Beijing, 100053, China.
  • Lin Y; Center for Applied Statistics and School of Statistics, Renmin University of China, Beijing, China.
  • Zimmer Z; School of Family Studies and Gerontology, Mount Saint Vincent University, Halifax, Nova Scotia, Canada.
  • Tse LA; Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, SAR, China.
  • Fang X; Center for Evidence-Based Medicine, Xuanwu Hospital, Capital Medical University, Changchun Street No. 45, Xicheng District, Beijing, 100053, China. fangxianghua@xwhosp.org.
BMC Geriatr ; 20(1): 357, 2020 09 21.
Article em En | MEDLINE | ID: mdl-32958037
BACKGROUND: While sleep duration has been shown to be associated with health outcomes, few studies have been conducted among the oldest old. In addition, the impact of sleep duration on quality of dying is unknown. We aimed to evaluate how sleep duration affects all-cause mortality and quality of dying in people aged 80 + . METHODS: This community-based longitudinal study was performed by using data from 15,048 individuals aged ≥80 with information on sleep duration in the Chinese Longitudinal Healthy Longevity Survey. Cox and logistic regression models with penalized splines were applied to explore the shape of the association between sleep duration and all-cause mortality and poor quality of dying respectively and identify the interval of sleep duration resulting in the lowest risk of both. RESULTS: During a median follow-up of 3.1 years, 11,582 deaths including 4116 individuals who experienced poor quality of dying were recorded. Sleep duration showed a U-shaped association with all-cause mortality and sleeping about 8 h had the minimum risk of death; a J-shaped association was found between sleep duration and poor quality of dying. Compared with sleep duration of 7-9 h, the adjusted hazard ratio of total deaths was 1.08 (95% CI 1.03-1.13) for short duration (< 7 h) and 1.12 (95% CI 1.07-1.17) for long duration (> 9 h); the adjusted odds ratio of poor QOD was 1.10 (95% CI 1.01-1.21) for long duration, but this association was restricted to those with baseline unhealthy status (P-interaction = 0.04). CONCLUSIONS: Sleeping a little longer may be better for individuals over 80 years old, and sleep duration of 7-9 h per day is optimal for both survival and good quality of life near death.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Qualidade de Vida / Sono Tipo de estudo: Etiology_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Aged80 / Humans Idioma: En Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Qualidade de Vida / Sono Tipo de estudo: Etiology_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Aged80 / Humans Idioma: En Ano de publicação: 2020 Tipo de documento: Article