Adjusted Case-Controlled Conditional Logistic Regression Analysis Predicting Cases (n = 427) Versus Matched Controls (n = 21 350)
| OR | 95% CI | P | |
|---|---|---|---|
| Exposure to child care | 0.94 | 0.73–1.21 | .64 |
| Child care type (family or home based) | 1.59 | 1.14–2.23 | <.01 |
| Interaction (child care type × exposure) | 0.82 | 0.53–1.26 | .37 |
Cases were propensity score–matched to controls by using 1:50 random matching without replacement with a caliper width of 0.2 × SD of the logit function. Values used in the propensity score included age, race, ethnicity, sex, director status, county-level COVID-19 death rate, county-level median household income, personal COVID-19 health precaution measures (3 continuous variables), and state where child care program was located (indicator variables).