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Table 2 Study population stratified by gravidity and malaria infection status

From: Antibody levels to recombinant VAR2CSA domains vary with Plasmodium falciparum parasitaemia, gestational age, and gravidity, but do not predict pregnancy outcomes

 

Group

PM status

n (%)

Gestational age (weeks)a

Mean (SD)

p valueb

Enrollment

Primigravid

PM−

104

21.4 (7.1)

0.8

PM+

67 (39.2%)

22.1 (4.7)

 

Secundigravid

PM−

92

20.3 (6.7)

0.2

PM+

34 (27.0%)

22.1 (5.5)

 

Multigravid

PM−

302

21.1 (6.3)

0.7

PM+

58 (16.1%)

21.6 (6.6)

 

Gestational week 30–32

Primigravid

PM−

122

  

PM+

14 (10.3%)

  

Secundigravid

PM−

90

  

PM+

4 (4.3%)

  

Multigravid

PM−

270

  

PM+

15 (5.3%)

  

Delivery

Primigravid

PM−

144

37.6 (4.2)

0.03

PM+

27 (15.8%)

36.6 (4.1)

 

Secundigravid

PM−

109

37.7 (5.0)

0.8

PM+

16 (12.8%)

38.6 (1.3)

 

Multigravid

PM−

326

38.6 (4.0)

0.2

PM+

34 (9.4%)

39.6 (1.3)

 

Pregnancy outcomec

Primigravid

Pregnancy loss

18 (61.1% BS +)

  

PTD

26 (65.4% BS +)

  

LBW

33 (66.6% BS +)

  

SGA

18 (44.4% BS +)

  

Secundigravid

Pregnancy loss

9 (33.3% BS +)

  

PTD

14 (42.9% BS +)

  

LBW

19 (52.6% BS +)

  

SGA

11 (63.6% BS +)

  

Multigravid

Pregnancy loss

17 (23.5% BS +)

  

PTD

8 (37.5% BS +)

  

LBW

20 (20.0% BS +)

  

SGA

22 (28.6% BS +)

  
  1. Pregnancy loss includes miscarriages, stillbirths and early neonatal death
  2. PTD Preterm delivery, LBW low birthweight, SGA small for gestational age
  3. aGestational age at delivery includes viable singleton births
  4. bComparison of gestational age between PM− and PM+ within gravidity group by Mann–Whitney test
  5. cPercentage of women that were infected during pregnancy