Table 1.
Characteristics of participants at baseline in stages 1 and 2
| Characteristic | Sleep quality (N = 4683) | P | Number of chronic physical conditions (N = 5126) | P | ||
|---|---|---|---|---|---|---|
| Good (n = 2847) | Poor (n = 1836) | 0 or 1 (n = 2847) | ≥ 2 (n = 2279) | |||
| Age, year | 0.450 | < 0.0001 | ||||
| 45–64 | 2115 (74.29%) | 1382 (75.27%) | 2115 (74.29%) | 1435 (62.97%) | ||
| ≥ 65 | 732 (25.71%) | 454 (24.73%) | 732 (25.71%) | 844 (37.03%) | ||
| Sex | < 0.0001 | 0.422 | ||||
| Male | 1586 (55.71%) | 749 (40.80%) | 1586 (55.71%) | 1244 (54.59%) | ||
| Female | 1261 (44.29%) | 1087 (59.20%) | 1261 (44.29%) | 1035 (45.41%) | ||
| Educational level | < 0.0001 | 0.003 | ||||
| No completion of primary school | 1054 (37.02%) | 819 (44.61%) | 1054 (37.02%) | 928 (40.72%) | ||
| Sishu/home school/elementary school | 667 (23.43%) | 391 (21.30%) | 667 (23.43%) | 564 (24.75%) | ||
| Middle school | 730 (25.64%) | 438 (23.86%) | 730 (25.64%) | 504 (22.11%) | ||
| High school and above | 396 (13.91%) | 188 (10.24%) | 396 (13.91%) | 283 (12.42%) | ||
| Residential regions | 0.135 | 0.060 | ||||
| Rural | 1008 (35.41%) | 611 (33.28%) | 1008 (35.41%) | 865 (37.96%) | ||
| Urban | 1839 (64.59%) | 1225 (66.72%) | 1839 (64.59%) | 1414 (62.04%) | ||
| Marital status | 0.002 | 0.026 | ||||
| Married | 2589 (90.94%) | 1618 (88.13%) | 2589 (90.94%) | 2030 (89.07%) | ||
| Other | 258 (9.06%) | 218 (11.87%) | 258 (9.06%) | 249 (10.93%) | ||
| Type of residential address | 0.341 | 0.484 | ||||
| Family housing or another type | 2845 (99.93%) | 1833 (99.84%) | 2845 (99.93%) | 2276 (99.87%) | ||
| Nursing home or hospital | 2 (0.07%) | 3 (0.16%) | 2 (0.07%) | 3 (0.13%) | ||
| Body mass index | 0.037 | < 0.0001 | ||||
| Underweight | 131 (4.60%) | 93 (5.07%) | 131 (4.60%) | 112 (4.91%) | ||
| Normal | 1134 (39.83%) | 799 (43.52%) | 1134 (39.83%) | 709 (31.11%) | ||
| Overweight | 634 (22.27%) | 395 (21.51%) | 634 (22.27%) | 476 (20.89%) | ||
| Obese | 948 (33.30%) | 549 (29.90%) | 948 (33.30%) | 982 (43.09%) | ||
| Smoking status | < 0.0001 | 0.467 | ||||
| Non-smoker | 1462 (51.35%) | 1125 (61.27%) | 1462 (51.35%) | 1147 (50.33%) | ||
| Current or former smoker | 1385 (48.65%) | 711 (38.73%) | 1385 (48.65%) | 1132 (49.67%) | ||
| Alcohol consumption | < 0.0001 | 0.576 | ||||
| Non-drinker | 1454 (51.07%) | 1954 (57.41%) | 1454 (51.07%) | 1146 (50.29%) | ||
| Current or former drinker | 1393 (48.93%) | 782 (42.59%) | 1393 (48.93%) | 1133 (49.71%) | ||
| Social interaction | 0.261 | 0.903 | ||||
| Never | 1419 (49.84%) | 946 (51.53%) | 1419 (49.84%) | 1132 (49.67%) | ||
| At least once a month | 1428 (50.16%) | 890 (48.47%) | 1428 (50.16%) | 1147 (50.33%) | ||
| Presence of multimorbidity | < 0.0001 | |||||
| No | 2188 (76.85%) | 1270 (69.17%) | - | - | ||
| Yes | 659 (23.15%) | 566 (30.83%) | - | - | ||
| Ultimate condition of sleep quality | < 0.0001 | |||||
| Good | - | - | 1842 (64.70%) | 1342 (58.89%) | ||
| Poor | - | - | 1005 (35.30%) | 937 (41.11%) | ||