Table 3.
Univariate and multivariate analyses of the association between skin maturity and the occurrence of respiratory distress syndrome acquired by the optical device.
| Variable | Univariate analysis | Multivariate analysis | ||||
| ORa (95% CI) | P value (Wald test) | R2 | OR (95% CI) | P value (Wald test) | R2 | |
| Skin reflectionb | 0.982 (0.979-0.985) | <.001 | 0.632 | 0.994 (0.990-0.998) | .001 | 0.843 |
| Birth weight | 0.995 (0.994-0.996) | <.001 | 0.825 | 0.996 (0.996-0.997) | <.001 | |
| ACTMFc | 63.106 (36.655-108.646) | <.001 | 0.621 | 2.854 (1.207-6.749) | .02 | |
aOR: odds ratio.
bOR and 95% CI values for skin reflection are × 103.
cACTMF: antenatal corticosteroid therapy for fetal maturation exposition.