Neonatal Tetanus Immunity in Nigeria: The Effect of HIV Infection on Serum Levels and Transplacental Transfer of Antibodies

Table 3

Logistic regression analysis results exploring the predictive significance of some maternal and infant factors on cord-blood tetanus antibody serostatus.

Independent variables	Wald test	df	value
Maternal age	2.050	3	0.562
SES	3.052	2	0.217
Parity	0.386	1	0.534
TT vaccination status	0.141	2	0.932
HIV status	10.950	1	0.001
Placental malaria	1.312	1	0.252
Birth weight	0.063	1	0.802
Gestational age	7.859	1	0.005
Gender	0.545	1	0.460
Constant	0.165	1	0.685

SES = socioeconomic status; df = degree of freedom; significant at <0.05.