TABLE 1.
Rates (per 1000 eligible patients) and adjusted odds of Non-invasive prenatal testing (NIPT) use
| Cohort | NIPT rate | Adjusted OR (95% CI) | P |
|---|---|---|---|
| Total patients (n = 22,393) | 201.2 | ||
| Insurance | |||
| Medicaid (n = 7106) | 48.7 | 0.18 (0.16–0.20) | <0.001 |
| Commercial (n = 15,287) | 272.1 | Ref | |
| Teaching hospital | |||
| Yes (n = 5025) | 182.1 | 1.15 (0.80–1.67) | 0.453 |
| No (n = 17,368) | 206.8 | Ref | |
| Zip-code sociodemographicsa | |||
| Proportion of Black/Hispanic residents | |||
| High (n = 4886) | 123.0 | 0.80 (0.70–0.90) | <0.001 |
| Low (n = 14,586) | 223.2 | Ref | |
| Proportion living below the FPL | |||
| High (n = 3584) | 107.7 | 0.80 (0.70–0.93) | 0.003 |
| Low (n = 15,886) | 218.4 | Ref |
Note: The model included hospital random effects and clustered standard errors at the hospital level.
Abbreviations: CI, confidence interval; NIPT, non-invasive prenatal testing; OR, odds ratio; Ref, referent.
The model included hospital random effects and clustered standard errors at the hospital level.
a
Zip-code sociodemographic indicators were derived from the Census Bureau’s American Community Survey and defined based on patient zip-code at time of delivery and the population proportion of Black/Hispanic residents or residents living below 100% the FPL within each zip-code.