Table 2

Risk factors for placental parasitaemia at delivery

Variable
At risk of
placenta
parasitaemia (n)
Univariate analysis
odds ratio
(95% CI)
LR
(p-value)
Multivariate analysis
odds ratio
(95% CI)

Age
413
1.08 (0.99 – 1.19)
0.09
1.07 (0.97 – 1.17)

Patient's home:


0.31

     Ifakara & vicinity
307
1


     Beyond Ifakara
106
1.50 (0.70 – 3.21)



Parity:


0.20

     Secundigravid
157
1


     Primigravid
256
0.63 (0.31 – 1.28)



Use of bednet:


0.09

     Never used
37
1


     Untreated
280
0.73 (0.2 – 2.6)

0.74 (0.21 – 2.68)
     Treated bednet
96
1.78 (0.5 – 6.6)

1.64 (0.44 – 6.19)

Report of self-medication:


0.28

     Never used
236
1


     Antimalarial
103
1.41 (0.59 – 3.34)


     Other forms
74
2.04 (0.85 – 4.88)



Reported fever episode:


0.31

     Never reported
235
1


     Reported
178
1.45 (0.71 – 2.95)



Incidence of birth weight
(n = 404)

0.31

     Normal BW
344
1


     LBW
60
1.62 (0.67 – 3.91)



¶-N = 33 cases of placenta parasitaemia

LR-likelihood ratio

Kabanywanyi et al. Malaria Journal 2008 7:133   doi:10.1186/1475-2875-7-133