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Table 1 Predictors for asymptomatic P. falciparum infection and anaemia in asymptomatic pregnant women in semi-rural suburbs of Kinshasa, 2012

From: Asymptomatic Plasmodium falciparum infection is associated with anaemia in pregnancy and can be more cost-effectively detected by rapid diagnostic test than by microscopy in Kinshasa, Democratic Republic of the Congo

    Asymptomatic P. falciparum Anaemia
Socio-demographic characteristic   N Positive TBS OR P value AOR 95% CI P value Anaemia OR P value AOR P value
Age <20 47(14.2) 24(51.1) 5.2 <0.001 3.2 (1.2-8.2) 0.02* 34(72.3) 1.8 0.09 0.9 (0.3-2.4) 0.8
  20-49 285(85.8) 48(16.9) 1     169(59.3) 1    
Gravidity Primigravidae 86(25.9) 27(31.4) 2.0 0.01 0.8 (0.3-1.7) 0.5 59(68.6) 1.5 0.1 1.5 (0.8-2.9) 0.2
  Multigravidae 246(74.1) 45(18.3) 1     144(58.5) 1    
Gestational age 1st et 2ème trimester 209(63.0) 42(20.1) 0.8 0.4 0.7 (0.4-1.3) 0.3 134(61.8) 1.1 0.7 1.1 (0.6-1.8) 0.7
  3rd trimester 123(37.0) 30(24.4) 1     69(60.0) 1    
Marital Status° Married 259(80.9) 41(15.8) 0.22 <0.001 0.3 (0.2-0.8) 0.01* 153(59.1) 0.7 0.2 1.3 (0.6-2.9) 0.6
  Single 61(19.1) 28(45.9) 1     41(67.2) 1    
Ownership and use of bed net Yes and used 117(35.2) 13(11.1) 0.4 0.002 0.4 (0.2-0.7) 0.005* 72(61.5) 1    
  Yes not used 26(7.8) 10(38.5) 1.8 0.2 1.9 (0.8-4.9) 0.2 17(65.4) 1 0.8 0.9 (0.3-2.4) 0.8
  No 189(56.9) 49(25.9) 1     114(60.3) 1.2 0.7 0.7 (0.5-1.2) 0.2
Presence of lattice on windows Yes 55(16.6) 13(23.6) 1.1 0.7 1.1 (0.5-2.5) 0.7 36(65.5) 1.2 0.5 1.6 (0.5-4.4) 0.4
  No 277(83.4) 59(21.3) 1     164(60.3) 1    
Malaria Yes 72(21.7 ) NA      60 (83.3) 4.1 <0.001* 5 (2.3-10.1) <0.001*
  No 260(78.3 ) NA      143(55.0) 1    
Geophagia Yes 180 (54.2) NA      103(57.2) 0.7 0.1 0.7 (0.5-1.2) 0.2
  No 152 (45.8) NA      100(65.8) 1    
  1. NA: Not applicable *Significant at p < 0.05, OR- odds ratio, AOR- adjusted odds ratio, C.I- confidence interval. °N = 320.