TABLE 1.

Risk of maternal obesity and maternal morbid obesity diagnoses based on sociodemographic characteristics in a cohort of 6.2 million births in California, 1991 – 2001.^a

	% of Cohort	Any Obesity (%)	Morbid Obesity (%)
Maternal age, years
< 35	86	1.08	0.12
≥ 35	14	1.16	0.17
Maternal race/ethnicity
White	35	1.28	0.13
Hispanic	46	0.87	0.11
Asian	10	0.87	0.01
Black	7	1.73	0.33
Other	1	1.93	0.30
Maternal education, years
Primary school or none (0–5y)	5	0.44	0.05
Secondary school (6–11y)	28	0.77	0.10
High school graduate (12y)	29	1.36	0.17
Some college (13–15y)	20	1.44	0.17
College graduate (≥ 16y)	18	0.95	0.07
Insurance status
Private coverage	49	1.39	0.14
Medicare/Medicaid/Self-Pay	49	0.79	0.12
Prenatal careb
Any	99	1.10	0.13
None	1	0.46	0.09
Parity
Multiparous	62	1.01	0.13
Nulliparous	38	1.19	0.12

^aP < 0.001 for all comparisons unless otherwise noted.

^bP < 0.005.