Table 1 Characteristics of the Sample
From: Physical activity and health-related quality of life in older adults: depression as a mediator
Characteristic | N = 7518 | Characteristic | N = 7518 |
|---|---|---|---|
Age, mean (SD) | 70.27 (8.06) | Cigarette smoking, n (%) | Â |
Age group(years), n (%) |  |  Non-smoker | 3947 (52.5) |
 60–69 | 4401 (58.5) |  Former | 538 (7.2) |
 70–79 | 2055 (27.3) |  Current | 3033 (40.3) |
 ≥80 | 1062 (14.1) | Total physical activities, n (%) |  |
Gender, n (%) |  |  Light (< 115.75) | 2507 (33.3) |
 Male | 3484 (46.3) |  Moderate (115.75–163.25) | 2514 (33.4) |
 Female | 4034 (53.7) |  Vigorous (> 163.25) | 2497 (33.2) |
Education, n (%) | Â | Leisure-time activities, n (%) | Â |
 Primary school or lower | 3057 (40.7) |  Light (< 8.60) | 2970 (39.5) |
 Middle school or higher | 4461 (59.3) |  Moderate (8.60–28.99) | 2045 (27.2) |
Marital status, n (%) |  |  Vigorous (> 28.99) | 2503 (33.3) |
 Married | 6356 (84.5) | Household activities, n (%) |  |
 Widowed/divorced/never married | 1162 (15.5) |  Light(< 86) | 2615 (34.8) |
Monthly income, n (%), Yuan |  |  Moderate (86–136) | 2599 (34.6) |
 ≤2000 | 1497 (19.9) |  Vigorous (> 136) | 2304 (30.6) |
 2001–5000 | 4767 (63.4) | Work-related activities, n (%) |  |
 ≥5001 | 1254 (16.7) |  No | 6735 (89.6) |
Physical function, mean (SD) |  |  Yes | 783 (10.4) |
 Instrumental activities of daily living score | 6.72 (2.25) | Depression, n (%) |  |
 Basic activities of daily living score | 95.94 (12.15) |  No | 6568 (87.4) |
Alcohol drinking, n (%) |  |  Yes | 950 (12.6) |
 Non-drinker | 4112 (54.7) | 36-Item Short-Form Health Survey, mean (SD) |  |
 Former | 278 (3.7) |  Physical Component Summary | 46.25 (9.82) |
 Current | 3128 (41.6) |  Mental Component Summary | 53.43 (8.32) |