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Table 1 Study population characteristics of Papua New Guinean women

From: Malaria preventive therapy in pregnancy and its potential impact on immunity to malaria in an area of declining transmission

Characteristic Single course of CQ and SP treatment (n = 304) Three courses of SP and AZ treatment (n = 277) P-value
Age, years 24.0 (21.0–28.0) 24.0 (21.0–28.0) 0.2
Weight at enrolment, kg 55.0 (50.0–59.0) 53.0 (49.0–59.0) 0.6
MUAC at enrolment, cm 23.0 (22.0–25.0) 23.0 (22.0–25.0) 0.5
Gravidity    0.4
Gravida 1, n (%) 108 (35.5) 92 (33.2)
Gravida 2, n (%) 91 (29.9) 88 (31.8)
Gravida 3, n (%) 105 (34.5) 97 (35.0)
Overall Bed net use    0.4
No, n (%) 2 (0.7) 0 (0.0)
Intermittent, n (%) 89 (29.3) 82 (29.6)
Regular, n (%) 213 (70.1) 195 (70.4)
Ethnicity    0.5
Madang/Morobe 194 (63.8) 193 (69.7)
Sepik 57 (18.8) 41 (14.8)
Highland 26 (8.6) 19 (6.9)
Others 27 (8.9) 24 (8.7)
Residence    0.9
Urban 51 (16.8) 44 (16.0)
Peri-urban 59 (19.5) 50 (18.1)
Rural 181 (59.7) 170 (61.8)
Migrant 12 (4.0) 11 (4.0)
Light microscopy (P. falciparum)    
Enrolment (peripheral blood) 20 (6.6) 15 (5.4) 0.5
Delivery (peripheral blood) 7 (2.3) 5 (1.8) 0.7
Delivery (placental blood) 7 (2.3) 4 (1.4) 0.2
qPCR (P. falciparum)    
Enrolment (peripheral blood) 31 (10.2) 24 (8.7) 0.8
Delivery (peripheral blood) 14 (4.6) 8 (2.9) 0.1
Delivery (placental blood) 7 (2.3) 1 (0.3) 0.1
Placental histology    0.1
Uninfected 171 (81.8) 170 (81.0)
Infecteda 38 (18.2) 40 (19.1)
  1. Data represented as median and interquartile range, unless otherwise indicated
  2. AZ azithromycin, CQ chloroquine, SP sulfadoxine-pyrimethamine, MUAC mid-upper arm circumference
  3. aPlacental malaria was defined as histological evidence of acute, chronic, or past infection