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Table 1 Baseline characteristics of study participants

From: Sulphadoxine-pyrimethamine plus azithromycin for the prevention of low birthweight in Papua New Guinea: a randomised controlled trial

Characteristic Control (SPCQ and placebo) Intervention (SPAZ)
(n = 1,382) (n = 1,393)
Age, years 24.5 [5.4] 24.4 [5.5]
Height, cm; n = 2,729 154.3 [6.0] 154.1 [5.8]
Body mass index, kg/m2; n = 2,721 22.8 [2.9] 22.8 [2.9]
Mid-upper arm circumference, cm; n = 2,714 23.9 [2.5] 24.0 [2.6]
Fundal height, cm; n = 2,771 21.1 [4.2] 21.0 [4.3]
Haemoglobin (Hb), g/dL; n = 2,650 9.7 [1.5] 9.7 [1.5]
Anaemia, Hb <11 g/dL 1,058/1,313 (80.6) 1,099/1,337 (82.2)
Syphilis 15/1,122 (1.3) 20/1,166 (1.7)
No. of previous pregnancies     
0 681 (49.4) 709 (51.0)
1 292 (21.2) 279 (20.1)
≥2 406 (29.4) 403 (29.0)
Previous adverse pregnancy outcome 103/1,375 (7.5) 119/1,389 (8.6)
Used bed net before enrolment (2 wks)     
Not used 322 (23.4) 347 (25.0)
Used, without insecticide 588 (42.7) 561 (40.4)
Used, insecticide treated 466 (33.9) 481 (34.6)
Given new bed net at enrolment 873/1,375 (63.5) 849/1,385 (61.3)
Used antimalarials in this pregnancy 146/1,340 (10.9) 161/1,366 (11.8)
Peripheral parasitaemia by microscopy     
Any speciesa 100/1,376 (7.3) 104/1,390 (7.5)
Plasmodium falciparum 87 (6.3) 90 (6.5)
Plasmodium vivax 11 (0.8) 12 (0.9)
Smoker 249/1,380 (18.0) 275/1,392 (19.8)
Rural residence 844/1,375 (61.4) 876/1,389 (63.1)
Literate 1,223/1,376 (88.9) 1,248/1,391 (89.7)
Income-generating activity (woman) 728/1,304 (55.8) 729/1,326 (55.0)
Income-generating activity (partner) 939/1,358 (69.2) 947/1,378 (68.7)
Highlander parentage 99/1,380 (7.2) 78/1,393 (5.6)
  1. Data are mean [standard deviation], or number (%).
  2. aIncludes two P. malariae in the control, and one P. malariae, one P. ovale, and one mixed P. falciparum and P. ovale infections in the intervention group.