Table 2:

Summary Statistics, Birth Certificate Data

Variable	Mean	Std. Err.	Min	Max
Any SMM condition	0.009	0.09	0	1
Any SMM, no transfusion	0.006	0.08	0	1
Transfusion	0.003	0.06	0	1
Ruptured uterus	0.0001	0.01	0	1
Unplanned hysterectomy	0.0002	0.01	0	1
Eclampsia	0.003	0.06	0	1
Admission to ICU	0.002	0.04	0	1
ACA Medicaid expansion	0.23	0.42	0	1
Months since expansion	5.48	12.10	0	55
Expansion within one year prior to conception	0.06	0.24	0	1
Expansion more than a year prior to conception	0.17	0.37	0	1
Age	26.11	4.58	21	50
Married	0.47	0.50	0	1
Hispanic	0.20	0.40	0	1
Black	0.19	0.39	0	1
Other race	0.06	0.23	0	1
C-section	0.33	0.47	0	1
County unemployment	6.09	2.25	0.8	20
Real income per capita	189.45	56.05	0	1002
County percent poverty	15.50	5.48	2.6	57
County bassinets per 100,000 population	18.29	14.73	0	5895
County ob/gyn and physicians per 100,000 population	82.51	34.73	0	647
Missing value on Hispanic	0.50	0.50	0	1
Missing value on married	0.0001	0.01	0	1
Missing value on C-section	0.0004	0.02	0	1
N=3,878,963