Table 2 The descriptive statistics of covariates
Variable | Number | Percentage | |
|---|---|---|---|
Age | (mean, SD) | 70.22 (7.07) | – |
Sex | Male | 234 | 38.24% |
| Â | Female | 378 | 61.76% |
Marital status | Non-single | 444 | 72.55% |
| Â | Single | 168 | 27.45% |
Education level | Primary school and lower | 268 | 43.79% |
| Â | Middle school | 177 | 28.92% |
| Â | Senior middle school and higher | 167 | 27.29% |
ADL limitation | Yes | 11 | 1.80% |
| Â | No | 601 | 98.20% |
Chronic disease | Yes | 350 | 57.19% |
| Â | No | 262 | 42.81% |
Hukou location | Urban | 344 | 56.21% |
| Â | Rural | 268 | 43.79% |
Household income | Above-average incomes | 301 | 49.18% |
| Â | Below-average incomes | 311 | 50.82% |
Health insurance | Yes | 601 | 98.20% |
| Â | No | 11 | 1.80% |
Old-age insurance | Yes | 590 | 96.41% |
| Â | No | 22 | 3.59% |
Outpatient service | Yes | 95 | 15.52% |
| Â | No | 517 | 84.48% |
Inpatient service | Yes | 83 | 13.56% |
| Â | No | 529 | 86.44% |
Number of children | (mean, SD) | 2.43 (1.25) | – |
Instrumental support | Yes | 524 | 85.62% |
| Â | No | 88 | 14.38% |
Emotional support | Yes | 525 | 85.78% |
| Â | No | 87 | 14.22% |
Regular exercise | Yes | 486 | 79.41% |
| Â | No | 126 | 20.59% |