Table 1A.

Characteristics by Whether Transitioned to MMC.

Characteristics	Never MMC	Always MMC	Change MMC
Medicaid enrollment characteristics
Age 1st enrolled	4.3	1.8	1.2
Years enrolled	5.1	5.9	9.2
Months enrolled in year	8.8	10.2	10.5
Family net income, mean over months in sample
Monthly income, if >0, $2015	1,196.7	1,358.7	1,246.8
Missing, %	5.3%	3.1%	5.3%
Zero, %	53.7%	47.7%	38.9%
Demographics
Male	52.4%	50.1%	50.4%
Age	8.9	5.1	7.3
Race: White	48.8%	38.2%	39.8%
Black	40.4%	50.3%	48.0%
Hispanic	7.3%	7.6%	9.7%
N obs.	341,445	634,583	1,984,815
N children	135,248	167,997	273,964
Birth certificate data
Birth weight, g	3221	3174	3181
Mother’s age	24.4	24.4	23.7
School: Elem	4.6%	4.0%	5.8%
High school	24.7%	26.4%	30.9%
High school diploma	41.8%	37.7%	40.2%
Some college	19.1%	22.5%	16.8%
College diploma	9.8%	9.3%	6.4%
N obs.	125,364	257,333	1,30,9,827
N children	54,572	103,890	209,607

Notes: The table is based on a 60% random sample of SC Medicaid population under 17 years old in 2004–2015, excluding children in foster care and disabled children. Birth certificates data are available for in-state births for children born after 1992. These records are matched to Medicaid records on name, date of birth, race, gender, and hospital of birth, when available. Years enrolled referes to years in the sample if they are enrolled in a given year while months enrolled refers to the current year.