Table 2 Interaction between care recipient's gender and care-giving arrangement in Cox proportional hazard models
| Â | Model I* | Model II** | ||
|---|---|---|---|---|
Variable names | HR (95% CI) | P | HR (95% CI) | P |
Care recipient's gender | Â | Â | Â | Â |
   Female | 1.00 |  | 1.00 |  |
   Male | 3.97 (1.17 - 13.42) | 0.027 | 5.13 (2.25 - 11.69) | < 0.0001 |
Informal care-giving arrangement | Â | Â | Â | Â |
   Spousal care | 1.00 |  | 1.00 |  |
   Daughter-in-law care | 4.09 (1.23 - 13.58) | 0.022 | 4.40 (1.60 - 12.10) | 0.004 |
   Other categories (biological daughter care/other relative care/living alone) | 1.55 (0.45 - 5.39) | 0.491 | 1.26 (0.55 - 2.90) | 0.580 |
Interaction | Â | Â | Â | Â |
   Male gender * Daughter-in-law care | 0.09 (0.01 - 0.57) | 0.011 | 0.08 (0.02 - 0.46) | 0.004 |
   Male gender * Other categories | 0.66 (0.14 - 3.11) | 0.601 |  |  |