. Author manuscript; available in PMC: 2011 Jan 24.

Published in final edited form as: Am J Obstet Gynecol. 2007 Aug;197(2):167.e1–167.e5. doi: 10.1016/j.ajog.2007.03.041

Table II.

2-year incidence of urinary incontinence by severity of incontinence

Age (years)	N	Any Incontinence^*		Occasional Incontinence^*		Frequent Incontinence^*		Severe Incontinence^*
Age (years)	N	Cases	%	Cases	%	Cases	%	Cases	%
36–40	5,034	593	11.8	473	9.4	120	2.4	42	0.8
41–45	10,387	1,374	13.2	1,006	9.7	368	3.5	127	1.2
46–50	11,413	1,681	14.7	1,207	10.6	474	4.2	177	1.6
51–55	7,118	1,020	14.3	738	10.4	282	4.0	78	1.1
Total	33,952	4,668	13.7	3,424	10.1	1,244	3.7	424	1.2

Any incontinence defined as leaking at least once per month; occasional incontinence defined as leaking 1 to 3 times per month; frequent incontinence defined as leaking at least once per week; severe incontinence defined as frequent leaking of quantities at least enough to wet the underwear