Baseline characteristics by allostatic load burden (low, medium and high) among males and females
| Male (N=709) | Female (N=810) | |||||||||
| Total | Low (n=181) | Medium (n=455) | High (n=73) | P value | Total | Low (n=231) | Medium (n=534) | High (n=45) | P value | |
| Age, years, mean±SD | 80.5±11.3 | 77.6±10.7 | 81.0±11.4 | 84.1±11.0 | 0.042 | 90.2±11.8 | 87.0±13.0 | 91.3±11.1 | 93.6±11.0 | 0.029 |
| Married*, No (%) | 446 (62.9%) | 125 (69.1%) | 276 (60.7%) | 45 (61.6%) | 0.137 | 173 (21.4%) | 65 (28.1%) | 101 (18.9%) | 7 (15.6%) | 0.010 |
| Han ethnicity, No (%) | 638 (89.9%) | 168 (92.8%) | 402 (88.4%) | 68 (93.2%) | 0.152 | 719 (88.8%) | 210 (90.9%) | 471 (88.2%) | 38 (84.4%) | 0.354 |
| Any education, No (%) | 457 (64.5%) | 119 (65.8%) | 294 (64.6%) | 44 (60.3%) | 0.707 | 108 (13.3%) | 50 (21.7%) | 55 (10.3%) | 3 (6.7%) | 0.000 |
| Smoking, No (%) | 0.418 | 0.800 | ||||||||
| Current smoker | 265 (37.3%) | 71 (39.2%) | 170 (37.4%) | 24 (32.9%) | 30 (3.7%) | 6 (2.6%) | 23 (4.3%) | 1 (2.2%) | ||
| Past smoker | 109 (15.4%) | 22 (12.2%) | 71 (15.6%) | 16 (21.9%) | 16 (2.0%) | 5 (2.2%) | 11 (2.1%) | 0 | ||
| Non-smoker | 335 (47.3%) | 88 (48.6%) | 214 (47.0%) | 33 (45.2%) | 761 (94.3%) | 219 (95.2%) | 498 (93.6%) | 44 (97.8%) | ||
| Exercise, No (%) | 183 (26.2%) | 55 (30.6%) | 110 (24.6%) | 18 (25.0%) | 0.300 | 154 (19.3%) | 41 (18.1%) | 103 (19.5%) | 10 (22.2%) | 0.782 |
| Hypertension, No (%) | 125 (17.8%) | 0 | 97 (21.6%) | 28 (38.9%) | 0.000 | 179 (22.6%) | 0 | 153 (29.3%) | 26 (57.8%) | 0.000 |
| Diabetes, No (%) | 13 (1.8%) | 3 (1.6%) | 4 (0.9%) | 6 (8.3%) | 0.001 | 12 (1.5%) | 0 | 10 (1.9%) | 2 (4.4%) | 0.013 |
| Heart disease, No (%) | 42 (5.9%) | 10 (5.5%) | 27 (6.0%) | 5 (6.9%) | 0.921 | 62 (7.8%) | 10 (4.5%) | 40 (7.6%) | 12 (26.7%) | 0.000 |
| Stroke, No (%) | 33 (4.7%) | 8 (4.4%) | 18 (4.0%) | 7 (10.0%) | 0.105 | 45 (5.7%) | 14 (6.2%) | 29 (5.5%) | 2 (4.4%) | 0.878 |
| Pulmonary, No (%) | 74 (10.5%) | 18 (10.0%) | 45 (9.9%) | 11 (15.3%) | 0.374 | 49 (6.2%) | 10 (4.4%) | 38 (7.2%) | 1 (2.2%) | 0.181 |
| Arthritis, No (%) | 96 (13.6%) | 18 (10.0%) | 64 (14.2%) | 14 (19.2%) | 0.132 | 128 (16.0%) | 44 (19.2%) | 79 (15.0%) | 5 (11.1%) | 0.224 |
| Cancer, No (%) | 2 (0.3%) | 1 (0.6%) | 1 (0.2%) | 0 | 0.591 | 6 (0.8%) | 0 | 5 (1.0%) | 1 (2.2%) | 0.133 |
*Married versus widowed, never married and divorce.