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. 2011 Jul 19;6(7):e22491. doi: 10.1371/journal.pone.0022491

Table 1. Characteristics of the cohort and associations with HIV and placental malaria.

Age Maternal Hb level (g/dL)1 Infant Bw (g)2
n [%] Mean (SD) p-value n [%] Mean (SD) p-value n [%] Mean (SD) p-value
Entire Cohort 187 [100] 22.5 (3.1) 129 [100] 10.6 (2.14) 181 [100] 2852 (518)
HIV negative 65 [35] 22.1(2.3) 30 [23] 10.7 (2.1) 61 [34] 3091 (452)
positive 122 [65] 22.7 (3.4) 0.197 99 [77] 10.6 (2.2) 0.934 120 [66] 2731 (510) <0.001
Malaria infection negative 89 [48] 23.1 (3.5) 58 [45] 10.9 (2.2) 87 [44] 2852 (561)
positive 79 [42] 21.6 (2.3) 0.002 61 [47] 10.5 (2.0) 0.252 78 [43] 2865 (438) 0.875
Not available 19 [22] 10 [8] 16 [9]
HIV and Malaria:
DOUBLE NEGATIVES 3 27 [14] 22.3 (2.0) 9 [7] 11.1 (2.4) 26 [14] 3112 (501)
DOUBLE POSITIVES 4 47 [25] 21.5 (2.1) 0.119 42 [33] 10.5 (2.0) 0.404 46 [25] 2714 (390) <0.001

The data represents numbers of patients (percentages of total for each parameter) and means [standard deviations].

1

Maternal haemoglobin levels.

2

Birth weight of babies at delivery.

3

DOUBLE NEGATIVES are women with neither HIV nor malaria.

4

DOUBLE POSITIVES are women with both HIV and malaria infection. Variables are normally distributed, so Student's t-tests were applied.