Table 5 Univariate poisson regression analysis of total number of symptomatic UTIs and baseline risk factors
Variable | p value Incidence rate ratio (95%CI) |
|---|---|
Age (ref. = 18–45 years) | p = 0.01 |
45 years and older | 1.97 (1.25–3.11) |
Number infections past 12 months (ref. < 5) | p = 0.02 |
≥ 5 | 1.62 (1.1–2.39) |
Frequency of sexual intercourse (per week) (ref. < 1) | p = 0.12 |
2–4 | 0.63 (0.4–0.97) |
≥ 5–6 | 0.78 (0.46–1.32) |
Hormonal contraception (ref. = no) | p = 0.84 |
Yes | 0.96 (0.65–1.41) |
Hydratation (average number of litres of liquid per day) (ref. < 1 L/day) | p = 0.19 |
1–2 L/day | 0.57 (0.32–1.02) |
≥ 2 L/day | 0.66 (0.36–1.18) |