Table 1.

Analytic samples, unweighted

Estimates	No. of people (%)	Percent irregular	Total no. of people	Total no. of cycles
Age, y
18 to 24	40,375 (15)	31	267,209	1,678,999
25 to 29	80,441 (30)	27
30 to 34	98,729 (37)	21
35 to 39	47,664 (18)	16
Race
NH Black	6,683 (6)	22	103,413	733,536
Hispanic	7,219 (7)	30
NH White	69,530 (67)	24
NH Asian	2,156 (2)	23
Multirace	17,260 (17)	27
PCOS	14,858 (11)	43	129,754	888,663
Type II diabetes	1,059 (1)	35	93,634	675,328
Obesity	11,256 (21)	32	54,203	402,371
Hormone irregularity	32,345 (19)	34	174,345	1,204,766
Thyroid dysfunction	6,341 (8)	27	83,065	617,117
Birth past year	602 (1)	28	41,164	283,686

NH, non-Hispanic.