TABLE 1.

Sociodemographic characteristics of study population at index delivery hospitalization, among 1,059,714 women in California, 2010-2012.

Characteristic	N (%)
Age in years
<20 years	82,986 (7.8%)
20-35 years	817,198 (77.1%)
>35 years	159,529 (15.1%)
Race/ethnicity
N-on Hispanic White	390,901 (36.9%)
Non-Hispanic Black	74,405 (7.0%)
Hispanic	408,205 (38.5%)
Non-Hispanic Asian/Pacific Islander	136,519 (12.9%)
Non-Hispanic other	49,683 (4.7%)
Insurance/payer
Private	599,980 (56.6%)
Medicaid	420,954 (39.7%)
Self-pay	11,172 (1.1%)
Other	27,607 (2.6%)
Urbanicity
Metropolitan	999,966 (94.4%)
Micropolitan	42,5497 (4.0%)
Small town/rural	17,248 (1.6%)