Table 4.

Prediction of NAS and duration of hospitalization

	NAS on day 3 of life			Duration of hospitalization
Predictor:	β	T	Sig T	β	T	Sig T
Infant sex	−.17	−1.45	n.s.	−.25	−2.06	.04
Prenatal exposures:
Methadone dose	.18	1.62	n.s.	.16	1.29	n.s.
SSRI/SNRI	.09	.85	n.s.	.22	1.82	.07
Positive toxicologies	.15	1.26	n.s.	.13	1.00	n.s.
Number of cigarettes	−.24	−2.07	.04	−.12	−.94	n.s.
Postpartum vagal tone
Day 1	−.38	−2.83	.007	−.08	−.55	n.s.
Day 3	.18	1.36	n.s.	−.04	−.27	n.s.