Table 1.
Baseline (pretest) and augmented (posttest) models for risk of hearing impairment based on a nested case–control substudy of the Neonatal Audiology for test B. Shown are log odds ratios for P(D = 1|X) and P(D = 1|X, Y) and coefficients for covariates in the corresponding model for logDLRX(Y). Age is centered at 35 weeks. p-values in parentheses are calculated by comparing estimates with standard errors
| Factor | Pretest risk | Posttest risk | log DLRX(Y) |
| Intercept | – 0.05 (0.67) | – 0.58 (< .001) | – 0.54 (1.00) |
| Age (weeks) | – 0.04 (0.04) | – 0.04 (0.05) | 0.002 (0.27) |
| Location (booth versus room) | 0.10 (0.49) | 0.15 (0.34) | 0.04 (0.72) |
| Age × location | 0.07 (0.02) | 0.07 (0.03) | – 0.005 (0.47) |
| Test result (Yes versus No) | — | 1.06 (< 0.001) | 1.06 (< 0.001) |