Full
Outline
To investigate the dose-response relationship between nighttime sleep duration and fall risk among older adults with chronic diseases, and to analyze age differences, thereby informing targeted interventions.
A questionnaire survey was conducted from January to May 2024 among adults aged ≥60 years in Shandong Province. Logistic regression was used to assess fall risk across different sleep durations. Restricted cubic splines (RCS) were applied to analyze nonlinear associations, with age-stratified analysis performed.
Among 1 421 older adults with chronic diseases, the fall incidence was 18.7%. RCS analysis revealed a significant nonlinear relationship between nighttime sleep duration and fall risk (overall trend P<0.001, nonlinear P=0.019). The optimal overall sleep duration was 7-8 h. Age-stratified results showed that among individuals aged 60-70 years, those sleeping 6-7 h had the lowest fall risk (overall trend P<0.001, nonlinear P=0.011). while those aged 71-80 had the lowest fall risk with 7-8 h of sleep (overall trend P=0.003, nonlinear P=0.037). For individuals aged 81 and older, the relationship between sleep duration and fall risk was not significantly nonlinear (overall trend P=0.182, nonlinear P=0.109).
Nighttime sleep duration and fall risk exhibit a U-shaped curve in older adults with chronic diseases, with optimal duration varying by age. Appropriately managing sleep duration may help reduce fall risk.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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