Table 1. Demographic characteristics of patients with prostate cancer and controls in Taiwan (n = 8404).
| Variable | Patients with prostate cancer (N = 2101) |
Controls (N = 6303) |
p value | ||
|---|---|---|---|---|---|
| Total no. | Percent (%) | Total no. | Percent (%) | ||
| Age, mean (SD), years | 74.1 (9.5) | 74.1 (9.5) | >0.999 | ||
| Urbanization level | >0.999 | ||||
| 1 (most urbanized) | 640 | 30.5 | 1920 | 30.5 | |
| 2 | 607 | 28.9 | 1821 | 28.9 | |
| 3 | 291 | 23.8 | 873 | 23.8 | |
| 4 | 313 | 14.9 | 939 | 14.9 | |
| 5 (least urbanized) | 250 | 11.9 | 750 | 11.9 | |
| Monthly income | >0.999 | ||||
| ≤NT15,840 | 1212 | 57.7 | 3636 | 57.7 | |
| NT$15,841∼25,000 | 601 | 28.6 | 1803 | 28.6 | |
| ≥NT$25,001 | 288 | 13.7 | 864 | 13.7 | |
| Geographic region | >0.999 | ||||
| Northern | 1059 | 50.4 | 3177 | 50.4 | |
| Central | 497 | 23.7 | 1491 | 23.7 | |
| Southern | 497 | 23.7 | 1491 | 23.7 | |
| Eastern | 48 | 2.2 | 144 | 2.2 | |
| Obesity | 21 | 1.0 | 30 | 0.5 | 0.008 |
| Hypertension | 1547 | 73.6 | 4677 | 74.2 | 0.605 |
| Diabetes mellitus | 675 | 32.1 | 2073 | 32.9 | 0.519 |
| Testitis or epididymitis | 47 | 2.2 | 99 | 1.6 | 0.043 |
| Gonorrhea or chlamydia infection | 31 | 1.5 | 67 | 1.1 | 0.127 |
| Hyperlipidemia | 945 | 45.0 | 2527 | 40.1 | <0.001 |
| Alcohol abuse/alcohol dependence syndrome | 4 | 0.2 | 20 | 0.3 | 0.345 |
| Prostatitis | 295 | 14.0 | 333 | 5.3 | <0.001 |
The average exchange rate in 2014 was US$1.00≈New Taiwan (NT)$29.