Table 4. Results of generalized linear regression analysis on medical expenditure.
| Variable | Total medical expenditure per study perioda | Medical expenditure per monthb | |||||
|---|---|---|---|---|---|---|---|
| Cost ratio | 95% LCL | 95% UCL | Cost ratio | 95% LCL | 95% UCL | ||
| Control (Reference) | 1.000 | 1.000 | |||||
| Lung cancer (all) | 1.395 | 1.312 | 1.483 | 3.739 | 3.483 | 4.012 | |
| Control (Reference) | 1.000 | 1.000 | |||||
| Patients with operation | OP | 1.857 | 1.704 | 2.025 | 3.116 | 2.842 | 3.417 |
| OP+CTx/RTx | 2.621 | 2.359 | 2.914 | 3.566 | 3.193 | 3.983 | |
| Patients without operation | CTx/RTx | 1.464 | 1.364 | 1.572 | 4.340 | 3.990 | 4.720 |
| Supportive treatment | 0.266 | 0.245 | 0.289 | 4.157 | 3.786 | 4.564 | |
LCL: lower confidence limits; UCL: upper confidence limits; OP = surgery; OP+CTx/RTx = surgery with anti-cancer drugs or radiotherapy; CTx/RTx = anti-cancer drugs or radiotherapy
a Effects are shown as adjusted for sex, age, smoking status, CCI score, and income level
b Effects are shown as adjusted for sex, age, smoking status, CCI score, income level, and length of follow-up month