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Table 1 Characteristics of study participants (N = 396)

From: Effects of Plasmodium falciparum infection on umbilical artery resistance and intrafetal blood flow distribution: a Doppler ultrasound study from Papua New Guinea

Characteristic N/total (%) or mean [SD]
Age (years) 24.3 (5.3)
Rural residence 239/381 (62.7)
Literate 375/396 (93.7)
Smoker 82/396 (20.7)
Areca nut user 320/395 (81.0)
Number of previous pregnancies
 0 211/396 (53.3)
 1 87/396 (22.0)
 ≥2 98/396 (24.8)
Gestational age at recruitment (weeks) 19.6 (3.8)
Peripheral parasitaemia at recruitment by microscopy 19/396 (4.6)
Low mid-upper arm circumference 53/396 (13.4)
Low body mass index 17/396 (4.3)
Moderate-to-severe anaemia 89/396 (22.5)
Delivery outcomes
 Female newborn sex 212/395 (53.7)
 Low birthweight (<2500 g) 67/396 (16.9)
 Placental malaria on histologya 46/308 (14.9)
  1. aActive and past placental infection