Table 1.
Age-adjusted baseline characteristics for women with urinary incontinence in the Nurses’ Health Studies
| Women 39–56 years of agea | Women 56–81 years of ageb | |||||
|---|---|---|---|---|---|---|
|
| ||||||
| Slight UI (n=2891) | Moderate UI (n=3348) | Severe UI (n=1252) | Slight UI (n=3206) | Moderate UI (n=4196) | Severe UI (n=1974) | |
| Mean Age, yrsc | 48.9±4.6 | 49.0±4.5 | 49.3±4.4 | 66.4±6.5 | 66.5±6.5 | 67.2±6.4 |
| Race, % | ||||||
| White | 98 | 96 | 97 | 98 | 98 | 98 |
| Black | 1 | 2 | 1 | 1 | 1 | 1 |
| Asian | 1 | 2 | 2 | 1 | 1 | 1 |
| Mean BMI, kg/m2 | 26.7±6.0 | 28.0±6.5 | 29.6±7.3 | 26.5±4.9 | 27.4±5.4 | 28.6±5.8 |
| Parity, % | ||||||
| 0 | 18 | 16 | 14 | 6 | 5 | 5 |
| 1–2 | 55 | 54 | 55 | 36 | 36 | 35 |
| 3+ | 27 | 30 | 31 | 58 | 60 | 60 |
| Smoking, % | ||||||
| Never | 65 | 65 | 62 | 47 | 46 | 45 |
| Past | 27 | 27 | 28 | 47 | 47 | 47 |
| Current | 8 | 8 | 11 | 6 | 8 | 8 |
| Mean Physical Activity, METs/week | 20.5±26.2 | 18.4±25.0 | 18.2±23.0 | 19.6±22.8 | 17.3±20.3 | 15.6±20.0 |
| Hysterectomy, % | 20 | 22 | 25 | 41 | 43 | 47 |
| Diabetes, % | 3 | 5 | 6 | 8 | 9 | 13 |
| History of vascular disease, %d | 2 | 2 | 3 | 5 | 5 | 7 |
| Postmenopausal hormone use, % | ||||||
| Never | 12 | 14 | 13 | 20 | 20 | 17 |
| Past | 13 | 13 | 13 | 36 | 36 | 41 |
| Current | 17 | 16 | 18 | 44 | 43 | 41 |
| Premenopausal (not eligible for hormone therapy) | 58 | 57 | 55 | 1 | 1 | 1 |
| Diuretic use, % | 7 | 8 | 8 | 15 | 16 | 16 |
UI, urinary incontinence; yrs, years; BMI, body mass index; kg, kilogram; m, meters; METs, metabolic equivalent of task
Values are means±SD or percentages and are standardized to the age distribution of the study population.
a
Nurses’ Health Study II participants, baseline characteristics measured in 2003.
b
Nurses’ Health Study participants, baseline characteristics measured in 2002.
c
Value is not age-adjusted.
d
History of vascular disease includes myocardial infarction or stroke.