Variables | Unadjusted model | Adjusted model | ||||
Crude HR | 95% CI | P value | Adjusted HR | 95% CI | P value | |
Insured spouse characteristics | ||||||
Sex | ||||||
Female (referent) | – | – | – | – | – | – |
Male | 1.120 | 0.950 to 1.321 | 0.1770 | 1.062 | 0.883 to 1.276 | 0.5222 |
Age | ||||||
16–34 years (referent) | – | – | – | – | – | – |
35–44 years | 1.159 | 0.799 to 1.682 | 0.4356 | 0.849 | 0.553 to 1.305 | 0.4556 |
45–54 years | 1.110 | 0.771 to 1.597 | 0.5752 | 0.730 | 0.457 to 1.166 | 0.1882 |
55–64 years | 1.366 | 0.945 to 1.974 | 0.0969 | 0.847 | 0.498 to 1.439 | 0.5394 |
≥65 years | 1.578 | 1.099 to 2.267 | 0.0135* | 0.972 | 0.537 to 1.759 | 0.9245 |
Occupation | ||||||
First category (private employee and government employee) (referent) | – | – | – | – | – | – |
Second category (labour union member) | 0.969 | 0.776 to 1.210 | 0.7807 | 1.101 | 0.842 to 1.439 | 0.4823 |
Third category (farmer and fisherman) | 1.193 | 0.956 to 1.488 | 0.1188 | 1.357 | 0.995 to 1.851 | 0.0538 |
Fourth, fifth and sixth categories (soldier, social security insured and veteran and religious group member) | 1.169 | 0.982 to 1.392 | 0.0783 | 1.235 | 0.959 to 1.591 | 0.1017 |
Premium-based monthly salary (US$) | ||||||
≤760 (referent) | – | – | – | – | – | – |
760–960 | 0.895 | 0.665 to 1.205 | 0.4653 | 1.085 | 0.779 to 1.511 | 0.6300 |
960–1210 | 0.905 | 0.700 to 1.170 | 0.4463 | 1.090 | 0.804 to 1.477 | 0.5782 |
1210–1526 | 0.963 | 0.742 to 1.251 | 0.7803 | 1.211 | 0.884 to 1.658 | 0.2332 |
>1526 | 1.218 | 0.997 to 1.489 | 0.0536 | 1.484 | 1.133 to 1.944 | 0.0042* |
Comorbidity (CCI) | ||||||
0 (referent) | – | – | – | – | – | – |
1 | 1.373 | 1.534 to 1.648 | 0.0007* | 1.293 | 1.065 to 1.571 | 0.0094* |
2 | 1.097 | 0.521 to 2.312 | 0.8074 | 0.930 | 0.437 to 1.978 | 0.8504 |
≥3 | 1.534 | 0.866 to 2.717 | 0.1424 | 1.123 | 0.620 to 2.035 | 0.7026 |
Catastrophic illness and injury | ||||||
Absent (referent) | – | – | – | – | – | – |
Present | 1.513 | 1.251 to 1.829 | <0.0001* | 1.471 | 1.192 to 1.815 | 0.0003* |
Use of carcinogenic medication | ||||||
No (referent) | – | – | – | |||
Yes | 1.257 | 0.797 to 1.984 | 0.3251 | 1.022 | 0.638 to 1.636 | 0.9294 |
Region | ||||||
Taipei (referent) | – | – | – | – | – | – |
Northern | 1.005 | 0.806 to 1.254 | 0.9630 | 1.084 | 0.843 to 1.393 | 0.5304 |
Central | 1.027 | 0.840 to 1.256 | 0.7963 | 1.143 | 0.909 to 1.438 | 0.2536 |
Southern | 1.218 | 0.979 to 1.514 | 0.0764 | 1.393 | 1.071 to 1.811 | 0.0133* |
Southeast | 0.979 | 0.783 to 1.225 | 0.8529 | 1.053 | 0.828 to 1.338 | 0.6742 |
Eastern | 1.393 | 0.841 to 2.306 | 0.1976 | 1.446 | 0.853 to 2.450 | 0.1710 |
Urbanisation level | ||||||
Level 1 (highest, referent) | – | – | – | – | – | – |
Level 2 | 0.946 | 0.793 to 1.129 | 0.5413 | 0.883 | 0.720 to 1.084 | 0.2343 |
Level 3 | 0.893 | 0.715 to 1.114 | 0.3165 | 0.841 | 0.654 to 1.082 | 0.1775 |
Level 4 | 1.022 | 0.813 to 1.285 | 0.8494 | 0.851 | 0.642 to 1.126 | 0.2586 |
Level 5 (lowest) | 0.946 | 0.715 to 1.251 | 0.6976 | 0.714 | 0.503 to 1.014 | 0.0595 |
Dependent spouse characteristics | ||||||
Age | ||||||
16–34 years (referent) | – | – | – | – | – | – |
35–44 years | 1.374 | 1.012 to 1.867 | 0.0419* | 1.440 | 1.010 to 2.053 | 0.0441* |
45–54 years | 1.351 | 0.999 to 1.827 | 0.0509 | 1.463 | 0.975 to 2.196 | 0.0664 |
55–64 years | 1.648 | 1.216 to 2.235 | 0.0013* | 1.475 | 0.919 to 2.366 | 0.1072 |
≥65 years | 1.661 | 1.223 to 2.256 | 0.0012* | 1.181 | 0.691 to 2.019 | 0.5434 |
Comorbidity (CCI) | ||||||
0 (referent) | – | – | – | – | – | – |
1 | 1.028 | 0.843 to 1.254 | 0.7849 | 0.866 | 0.699 to 1.072 | 0.1852 |
2 | 1.220 | 0.632 to 1.254 | 0.5541 | 0.946 | 0.483 to 1.851 | 0.8609 |
≥3 | 1.425 | 0.823 to 2.467 | 0.2060 | 1.054 | 0.587 to 1.893 | 0.8610 |
Catastrophic illness and injury | ||||||
Absent (referent) | – | – | – | – | – | – |
Present | 1.457 | 1.188 to 1.787 | 0.0003* | 1.374 | 1.096 to 1.722 | 0.0058* |
Use of carcinogenic medication | ||||||
No (referent) | – | – | – | – | – | – |
Yes | 1.291 | 0.873 to 1.908 | 0.2013 | 1.270 | 0.847 to 1.903 | 0.2468 |
*P<0.05.
CCI, Charlson Comorbidity Index.