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. Author manuscript; available in PMC: 2023 Apr 1.
Published in final edited form as: Obstet Gynecol. 2022 Mar 10;139(4):509–520. doi: 10.1097/AOG.0000000000004704

Table 2.

Employment and insurance coverage characteristics for annual population of newborn mothers in the United States versus propensity-matched controls, Medical Expenditure Panel Survey, 2008-2016.

Birth Parents
Estimate (95%CI)
n = 4,056
Matched controls
Estimate (95%CI)
n = 7,996
P value
Employment* (%)
Part-year non-employment 52.6% (50.5-54.8) 46.6% (45.0-48.3) <0.001
Full-year non-employment 32.1% (30.2-34.0) 26.0% (24.5-27.6) <0.001
Birth-month Insurance (%)
Private coverage 56.3% (53.7-59.0) 54.1% (52.1-56.2) 0.09
Medicaid coverage 32.1% (29.5-34.7) 16.4% (14.8-18.0) <0.001
Other public coverage 1.7% (1.1-2.4) 1.7% (1.2-2.2) 0.95
Uninsured 9.9% (8.5-11.3) 27.8% (25.8-29.7) <0.001
Uninsurance
   Never insured (%) 6.2% (5.1-7.3) 20.1% (19.0-22.7) <0.001
   Any period (%) 27.6% (25.2-29.9) 35.9% (34.0-37.8) <0.001
   Months uninsured (n) 1.7 (1.5-1.9) 3.2 (3.0-3.4) <0.001
Insurance Churn (%)
All coverage
   Any change 28.1% (26.1-30.2) 18.8% (17.6-20.0) <0.001
   Any loss 14.9% (13.0-16.8) 12.0% (10.9-13.0) 0.007
   Any gain 13.8% (12.4-15.3) 12.5% (11.4-13.7) 0.18
Medicaid
   Gain 22.4% (19.7-25.0) 17.9% (15.4-20.3) 0.01
   Loss 25.6% (22.3-29.0) 17.0% (14.7-19.2) <0.001
   Disruption 33.5% (30.0-37.0) 23.2% (20.4-26.0) <0.001
Private
   Gain 6.3% (4.7-7.9) 9.9% (8.7-11.1) <0.001
   Loss 6.0% (4.7-7.3) 9.6% (8.3-10.9) 0.002
   Disruption 9.8% (9.4-12.1) 9.8% (8.2-11.4) 0.33

CI = confidence interval; Matched control cohort was 2:1 nearest-neighbor propensity matched on age, race, ethnicity, home language, marital status, family size, education, income, comorbidity, health status, year, and survey weight.

*

Employment status assessed at 3 interview points in each calendar year, non-employment defined as reporting no job at present or to return to for non-retirees >18 years of age

Coverage in birth month for mothers, and first eligible month for matched controls

Insurance churn in year of delivery: change (any change in coverage type), loss (insurance to uninsurance), gain (uninsurance to insurance), disruption (insurance type to uninsurance or other coverage).