Table 4.

Estimates and 95% confidence intervals (CIs) for the effect of covariates on Antibody levels.

Linear Regression
Parameter	Hour after birth	Estimate (95% CI)	p Value
Hour Birth	0–3 h	4.3 (2.75; 6.71)	<0.001
	3–6 h	8.26 (5.77; 11.8)	<0.001
	6–9 h	26.33 (17.23; 40.24)	<0.001