Table 4.
Sub-group analysis in age-sex matched population.
|
Incidence rate*
(95% C.I.) |
|||
|---|---|---|---|
| Sub-group | Non-IC/BPS | IC/BPS | aHR+ (95% CI) |
| Sex-subgroup | |||
| Female | 8.89 (8.39–9.41) | 14.52 (11.84–17.82) | 1.427 (1.149–1.772) |
| Male | 6.05 (5.29–6.93) | 8.23 (4.78–14.18) | 1.254 (0.708–2.223) |
| p for interaction | 0.5988 | ||
| Age-subgroup | |||
| <30 | 5.01 (4.21–5.97) | 4.08 (1.7–9.81) | 0.679 (0.268–1.721) |
| 30–45 | 6.92 (6.25–7.67) | 10.79 (7.45–15.63) | 1.337 (0.899–1.988) |
| 45–60 | 8.68 (7.89–9.55) | 18.26 (13.44–24.8) | 1.765 (1.268–2.456) |
| ≥60 | 11.74 (10.72–12.85) | 16.76 (11.78–23.83) | 1.310 (0.906–1.894) |
| p for interaction | 0.2224 | ||
*
per 10,000 person months.
+ adjusted for demographic variables, length of hospital stay, co-morbidities at baseline.
IC/BPS, interstitial cystitis/bladder pain syndrome; aHR, adjusted hazard ratio; CI, confidence interval.