Table 3. Triple differences linear probability model for no health insurance coverage by marital status, sex, age, and state Medicaid expansion status, American Community Survey 2010–16.
| Women | Men | |||||||
|---|---|---|---|---|---|---|---|---|
| All Ages | Age 19–25 | Age 26–44 | Age 45–64 | All Ages | Age 19–25 | Age 26–44 | Age 45–64 | |
| Before 2014 | ||||||||
| Control–Not married & No State Medicaid Expansion | 0.354 | 0.357 | 0.542 | 0.310 | 0.437 | 0.461 | 0.609 | 0.347 |
| Control–Married & No State Medicaid Expansion | 0.394 | 0.435 | 0.546 | 0.353 | 0.393 | 0.455 | 0.534 | 0.321 |
| Treated–Not Married & Medicaid Expansion State | 0.143 | 0.220 | 0.248 | 0.295 | 0.236 | 0.304 | 0.425 | 0.136 |
| Treated–Married & Medicaid Expansion State | 0.159 | 0.250 | 0.245 | 0.328 | 0.172 | 0.329 | 0.521 | 0.109 |
| Difference for 2010–2013 | ||||||||
| Coefficient | -0.024 | -0.048 | -0.007 | -0.011 | -0.020 | -0.019 | -0.021 | -0.002 |
| Standard Error | 0.003 | 0.007 | 0.004 | 0.004 | 0.003 | 0.009 | 0.004 | 0.005 |
| t | 9.06 | 6.72 | 1.74 | 2.38 | 7.20 | 2.17 | 5.07 | 0.53 |
| p-value | <0.001 | <0.001 | 0.081 | 0.017 | <0.001 | 0.030 | <0.001 | 0.598 |
| After 2014 | ||||||||
| Control–Not married & No State Medicaid Expansion | 0.233 | 0.221 | 0.399 | 0.191 | 0.278 | 0.297 | 0.454 | 0.253 |
| Control–Married & No State Medicaid Expansion | 0.263 | 0.281 | 0.412 | 0.209 | 0.230 | 0.290 | 0.388 | 0.191 |
| Treated–Not Married & Medicaid Expansion State | -0.015 | 0.064 | 0.065 | 0.117 | 0.019 | 0.132 | 0.281 | -0.027 |
| Treated–Married & Medicaid Expansion State | -0.025 | 0.044 | 0.066 | 0.120 | -0.043 | 0.074 | 0.229 | -0.075 |
| Difference for 2014–2016 | ||||||||
| Coefficient | -0.040 | -0.079 | -0.011 | -0.016 | -0.013 | -0.051 | 0.015 | 0.014 |
| Standard Error | 0.003 | 0.008 | 0.005 | 0.005 | 0.003 | 0.010 | 0.005 | 0.005 |
| t | 13.59 | 9.38 | 2.37 | 3.27 | 4.26 | 4.85 | 3.00 | 2.72 |
| p-value | <0.001 | <0.001 | 0.018 | 0.001 | <0.001 | <0.001 | 0.003 | 0.006 |
| Triple Difference | ||||||||
| Coefficient | -0.016 | -0.031 | -0.004 | -0.005 | 0.007 | -0.031 | 0.036 | 0.016 |
| Standard Error | 0.004 | 0.011 | 0.006 | 0.007 | 0.004 | 0.014 | 0.007 | 0.007 |
| t | -3.94 | -2.79 | -0.60 | -0.75 | 1.58 | -2.29 | 5.58 | 2.37 |
| p-value | <0.001 | 0.005 | 0.551 | 0.455 | 0.115 | 0.022 | <0.001 | 0.018 |
| R-square | 0.13 | 0.13 | 0.16 | 0.11 | 0.14 | 0.18 | 0.14 | 0.11 |
| N | 1,972,877 | 659,774 | 685,631 | 627,472 | 1,901,555 | 665,282 | 662,739 | 573,534 |
NOTE: Estimates are based on the sample weights provided by the Census Bureau and adjusted for state and year fixed effects. Medicaid eligibility was defined by age 19–64 and income below 139% of the federal poverty level. Multivariate adjustment included the following control variables: age, number of children, race/ethnicity, immigration status, poverty status, education, employment status, and metropolitan residence.