Table 3. Incidences and hazard ratios of bladder cancer based on a Cox proportional hazard regression stratified by age, sex, region, comorbidity, follow-up duration.
| BD | Comparison | HR (95% CI) | ||||
|---|---|---|---|---|---|---|
| Event no | Incidence | Event no | Incidence | Crude | Adjusted | |
| Age, year | ||||||
| 18–64 | 7 | 1.84 | 9 | 0.57 | 3.20 (1.19–8.60)* | 3.33 (1.24–8.95)* |
| > = 65 | 30 | 3.82 | 49 | 1.53 | 2.49 (1.58–3.91)*** | 2.52 (1.60–3.96)*** |
| Sex† | ||||||
| Female | 3 | 0.95 | 16 | 1.25 | (0.22–2.61) | 0.81 (0.24–2.79) |
| Male | 34 | 3.99 | 42 | 1.20 | 3.31 (2.10–5.20)*** | 3.32 (2.11–5.22)*** |
| Comorbidity status† | ||||||
| No | 17 | 4.01 | 18 | 0.88 | 4.52 (2.33–8.77)*** | 4.86 (2.50–9.44)*** |
| Yes | 20 | 2.69 | 40 | 1.47 | 1.83 (1.07–3.13)* | 1.78 (1.04–3.04)* |
| Follow-up duration, years | ||||||
| <5 | 25 | 3.03 | 44 | 1.32 | 2.30 (1.41–3.75)*** | 2.31 (1.42–3.78)*** |
| ≧5 | 12 | 3.51 | 14 | 0.97 | 3.57 (1.65–7.73)** | 3.60 (1.66–7.78)** |
Models adjusted for age and CKD
Incidence, per 1000 person-years
* p < 0.05,
** p<0.01,
*** p < 0.001
BD: bladder diverticulum
†Interaction p < 0.05