Table 1.
Logistic regression analysis results of factors that influence self-determination by patients with respect to life-sustaining treatment decisions
| Item | Odds ratio | 95% Confidence | p-value |
|---|---|---|---|
| Sex | |||
| Male | Reference | Reference | Reference |
| Female | 0.893 | 0.863–0.923 | < 0.001 |
| Age (yr) | |||
| < 30 | Reference | Reference | Reference |
| 30–39 | 4.212 | 3.227–5.497 | < 0.001 |
| 40–49 | 5.801 | 4.542–7.410 | < 0.001 |
| 50–59 | 5.827 | 4.589–7.400 | < 0.001 |
| 60–69 | 4.509 | 3.555–5.719 | < 0.001 |
| 70–79 | 2.996 | 2.363–3.799 | 0.039 |
| ≥80 | 1.606 | 1.266–2.038 | < 0.001 |
| Insurance premium level | |||
| Medical aid | Reference | Reference | Reference |
| 1–4 percentile (lowest) | 0.805 | 0.753–0.861 | 0.602 |
| 5–8 percentile | 0.809 | 0.755–0.868 | 0.788 |
| 9–12 percentile | 0.777 | 0.727–0.831 | 0.020 |
| 13–16 percentile | 0.764 | 0.717–0.814 | < 0.001 |
| 17–20 percentile (highest) | 0.751 | 0.708–0.797 | < 0.001 |
| Disability | |||
| No | Reference | Reference | Reference |
| Yes | 0.591 | 0.567–0.616 | < 0.001 |
| Residence in national capital region | |||
| Yes | Reference | Reference | Reference |
| No | 0.837 | 0.810–0.864 | < 0.001 |
| CCI score | |||
| 0 | Reference | Reference | Reference |
| 1 | 0.811 | 0.769–0.854 | < 0.001 |
| 2 | 1.374 | 1.309–1.443 | < 0.001 |
| ≥3 | 1.326 | 1.262–1.393 | < 0.001 |
| History of hospitalization | |||
| No | Reference | Reference | Reference |
| Yes | 1.051 | 1.013–1.092 | 0.009 |
CCI, Charlson comorbidity index.