Table 3.
Logistic regression analysis of the association size of the network and social contacts in both groups.
| Variable | Environmental group (model 1) | Control group (model 2) | ||||||
|---|---|---|---|---|---|---|---|---|
| P | Hazard ratio | 95% CI of HR | P | Hazard ratio | 95% CI of HR | |||
| Lower limit | Upper limit | Lower limit | Upper limit | |||||
| Coexistence | ||||||||
| Alone (basal) | 1 | 1 | ||||||
| Spouse | 0.211 | 1.068 | 0.806 | 1.434 | 0.325 | 1.089 | 0.794 | 1.387 |
| Son/daughter | 0.019 | 1.289 | 0.989 | 1.68 | 0.389 | 0.995 | 0.791 | 1.335 |
| Siblings | 0.003 | 1.335 | 1.119 | 1.988 | 0.169 | 1.1 | 0.833 | 1.469 |
| Other people | 0.008 | 1.499 | 1.108 | 1.995 | 0.048 | 1.285 | 0.886 | 1.893 |
| Contacts and weekly visits | ||||||||
| >5 (basal) | 1 | 1 | ||||||
| 2–4 per week | 0.499 | 1.401 | 0.799 | 1.132 | 0.428 | 0.824 | 0.659 | 1.089 |
| 1-2 per week | 0.599 | 1.048 | 0.795 | 1.244 | 0.11 | 1.08 | 0.88 | 1.386 |
| 0 | 0.24 | 1.22 | 0.78 | 1.249 | 0.229 | 0.795 | 0.495 | 1.081 |
| Times to visit the social network | ||||||||
| >1-2 day (basal) | 1 | 1 | ||||||
| 2–5 per week | 0.699 | 1.024 | 0.842 | 1.203 | 0.504 | 1.079 | 0.765 | 1.109 |
| 1-2 per week | 0.297 | 1.097 | 0.865 | 1.259 | 0.069 | 1.182 | 0.895 | 1.34 |
| 0 | 0.1 | 1.123 | 0.889 | 1.295 | 0.897 | 0.924 | 0.828 | 1.829 |
Note: model 1 was adjusted by sociodemographic variables in the experimental group; model 2 was adjusted by sociodemographic variables in the control group; 95% CI of HR = confidence interval for b.