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Table 1 Characteristics of the study groups

From: Prevalence of Plasmodium falciparum infection in pregnant women in Gabon

  Number of women (n= 311) Primigravidae (n= 217) Secundigravidae (n= 94) P a
Age mean years, (SD)b 19 (3.33) 19 (3.31) 21 (2.93) < 0.001
Age of pregnancy mean, months (SD) 4 (1.3) 4 (1.2) 4 (1.4)  
Thick blood smear     
Negative Noc, (%) 134 (43) 78 (36) 56 (60)  
Positive No, (%) 177 (57) 139 (64) 38 (40) < 0.001
Lowd No, (%) 92 (52) 66 (47) 26 (68)  
Moderate No, (%) 75 (42) 64 (46) 11 (29)  
High No, (%) 10 (6) 9 (6) 1 (3)  
Parasitaemia e     
Median [IQR]f 930 [348–2808] 1050 [510–3060] 434 [149–2008] 0.002
Haemoglobin     
Mean g/dl, (SD) 10.2 (1.4) 10.1 (1.4) 10.3 (1.3) NSg
Non anaemic No, (%) 90 (29) 61 (28) 29 (31)  
Anaemic No, (%) 221 (71) 156 (72) 65 (69) NS
Lowh No, (%) 157 (71) 108 (69) 49 (75)  
Moderate No, (%) 59 (27) 45 (29) 14 (22)  
Severe No, (%) 5 (2) 3 (2) 2 (3)  
EpHb i     
AA No, (%) 248 (80)    
AS No, (%) 56 (18)    
AC No, (%) 7 (2)    
Fever     
yes No, (%) 84 (27)    
no No, (%) 227 (73)    
Chemoprophylaxis     
yes No, (%) 17 (5)    
no No, (%) 294 (95)    
  1. aP values for comparison between primigravidae and multigravidae. b Standard Deviation. c Number of pregnant women. d for definitions of parasitaemia see Patients and Methods. e parasitaemia in parasitaemic women. f interquartile range. g Not significant. h for definitions of anaemia see Patients and Methods. i Electrophoresis of Hb.