Table 2.
Univariate analysis for Total Moisture In take, Water Intake, and Caffeine Intake According to Urinary Incontinence Severity Among Women 20 Years of Age and Older in the US, National Health and Nutrition Examination Survey 2005–06 and 2007–08
| Variable | Na | Any UI Prevalence,b% (95% CI) | P value | Na | Mod/severe UI Prevalence,b % (95% CI) | P value |
|---|---|---|---|---|---|---|
| Total moisture intake in upper quartile (>3319 gm/day) | 4309 | 0.002 | 4309 | 0.253 | ||
| No | 2577 | 26.3 (23.8,28.9) | 3486 | 17.1 (15.5,18.8) | ||
| Yes | 1732 | 21.5 (19.1,24.2) | 823 | 14.6 (11.3,18.7) | ||
| Water intake in upper quartile (≥1304 gm/day) | 4309 | 0.455 | 4309 | <0.001 | ||
| No | 3166 | 41.4 (38.9,44.0) | 3166 | 18.0 (16.4,19.6) | ||
| Yes | 1143 | 40.0 (36.8,43.3) | 1143 | 12.9 (10.7,15.4) | ||
| Caffeine intake upper quartile (≥204 mg/day) | 4309 | <0.001 | 4309 | 0.005 | ||
| No | 3412 | 37.8 (35.9,39.8) | 3412 | 15.2 (13.6,16.9) | ||
| Yes | 897 | 49.4 (45.0,53.7) | 897 | 19.9 (17.0,23.1) | ||
| Caffeine intake top 10th percentile (≥348 mg/day) | 4309 | 0.008 | 4309 | 0.234 | ||
| No | 3974 | 39.7 (37.6,41.8) | 3974 | 16.2 (14.7,17.8) | ||
| Yes | 335 | 51.7 (43.3,60.0) | 335 | 19.1 (16.5,31.4) |
a
Total number of women responding for the category or condition under study (denominator) excluding those with missing data
b
Weighted prevalence rates reported