TABLE 2.

Multiple logistic regression analysis of clinical variables versus cpn60 read count classification (more or fewer than 1,000 reads) for 118 samples for which all variable data were available (McFadden’s pseudo-R² = 0.137)^a

Variable	OR	95% CI	Sig?
Delivery mode (vs elective C/S)
Vaginal delivery	0.52	0.13–2.00	NS
Emergent C/S	1.80	0.29–14.94	NS
Membrane rupture length	0.98	0.94–1.02	NS
Birth-sample collection interval	0.95	0.92–0.99	P < 0.01
Meconium staining	0.59	0.14–2.65	NS

^aC/S, caesarean section; OR, odds ratio; sig, significant; NS, not significant.