TABLE 1.

Age and age-adjusted characteristics of participants in the Nurses’ Health Study at initial urinary incontinence assessment in 2000, according to UI status

	Women with persistent UI 1 (n=18,347)	Women with no UI 1 (n=18,496)
Age, in years, %
<60	19	27
60–64	20	23
65–69	22	21
70–74	22	17
≥75	17	12
Race, %
White	99	97
Black	1	2
Asian	<1	1
Body-mass index, in kg/m2,%
<25	35	53
25–29.9	35	33
≥30	30	14
Parity, %
0 births	5	7
1–2 births	34	37
≥3 births	61	56
Median alcohol intake, in g/day 2	0.9 (0–5.8)	1.5 (0–6.7)
Smoking status, %
Never	45	46
Past	46	43
Current	9	11
Median physical activity, in MET-hrs/wk 2	12.0 (6.0–21.4)	14.8 (7.6–25.9)
Post-menopausal hormone use, %
Never	20	32
Past	22	25
Current	58	43
History of stroke, %	2	1
History of myocardial infarction, %	4	3
History of type 2 diabetes, %	9	5
Had a hysterectomy, %	46	34

¹Percentages of non-missing values.

²Denotes interquartile range.