Table 3. Multiple regression analysis for adjusted relationships between log costs of all health services and bladder pain syndrome/interstitial cystitis.
| Variable | Log (all health services costs) | |
| B | p value | |
| Group | ||
| Subjects with BPS/IC | 0.780 | <0.001 |
| Controls | ||
| Urbanization level | ||
| 1 (most urbanized) | ||
| 2 | 0.013 | 0.846 |
| 3 | −0.157 | 0.069 |
| 4 | 0.033 | 0.721 |
| 5 (least urbanized) | 0.005 | 0.962 |
| Monthly income | ||
| NT$1∼15,840 | ||
| NT$15,841∼25,000 | −0.093 | 0.060 |
| ≥NT$25,001 | −0.163 | 0.072 |
| Geographic region | ||
| Northern | ||
| Central | 0.016 | 0.074 |
| Southern | 0.056 | 0.068 |
| Eastern | 0.221 | 0.196 |