Appendix Table A1.
Determination of the Study Sample
| Sample size | |
|---|---|
| Study sample | |
| Observations (MEPS 2006-2015) | 349,405 |
| Restricted to female | 182,281 |
| Restricted to age 18 to 44 | 66,432 |
| Restricted owing to missing data—final sample size | 48,114 |
| No. of missing values in the restricted study samplea | |
| Rural/urban | 12,543 |
| Education | 653 |
| Married | 28 |
| Family size | 1,779 |
| Activity limitation | 2,700 |
| Employment status | 1,262 |
| Poor or fair health status | 2,091 |
| Poor or fair mental health status | 2,126 |
| Pregnancy status | 32 |
| Chronic disease | 215 |
a
Data were missing for rural status and/or 1+ covariates in some MEPS respondents, making the total number of excluded participants 18,318. Although missing values in the study sample were excluded from the main analysis, respondents outside our study sample were still used for weighting.
MEPS, Medical Expenditure Panel Survey.