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Table 2 The effect of each measured variable on anaemia(Univariate analysis)

From: An update of malaria infection and anaemia in adults in Buea, Cameroon

variable N(n)* OR(95% CI) p-value||
malaria parasitaemia    
aparasitaemic 186(23)   
parasitaemic 64(14) 1.98(0.94-4.17) 0.06
age (years)    
<25 68(10)   
25-29 35(8) 1.72(0.60-4.89) 0.30
>30 58(9) 1.07(0.40-2.84) 0.90
residence    
urban 156(15)   
rural 78(22) 3.69(1.75-7.81) <0.001
sex    
male 101(6)   
female 148(31) 4.20(1.64-10.71) 0.001
employment status    
employed 53(9)   
unemployed 194(28) 0.82(0.36-1.88) 0.65
monthly income (thousand FCFA)    
<15 148(24)   
≥15 66(7) 0.62(0.25-1.54) 0.30
marital status    
married 104(20)   
unmarried 143(17) 0.57(0.28-1.15) 0.11
educational status    
none 23(2) 0.44(0.09-2.19) 0.31
primary+ 68(12)   
secondary 96(17) 1.00(0.44-2.27) 0.99
university 56(6) 0.56(0.19-1.62) 0.28
use of ITN    
yes 40(7)   
no 196(27) 0.75(0.30-1.88) 0.54
use of antimalarial at home    
yes 118(21)   
no 119(16) 0.72(0.35-1.46) 0.36
history of fever    
yes 170(30)   
no 72(7) 0.50(0.21-1.21) 0.12
temperature (T) (°C)    
<37.5 124(16)   
37.5 ≤ T < 38 56(12) 1.84(0.80-4.24) 0.15
≥38 48(7) 1.15(0.44-3.01) 0.77
white blood cell count (thousand/μl)    
<3.7 76(19)   
3.7-5 82(8) 0.32(0.13-0.81) 0.01
>5 83(10) 0.41(0.17-0.97) 0.04
platelet count (thousand per μl)    
<120 69(11)   
120 ≤ platelet < 150 65(10) 0.96(0.38-2.44) 0.93
≥150 107(15) 0.86(0.37-2.01) 0.73
  1. *N = number of subjects in category, n = number with anaemia
  2. crude odds ratios and confidence intervals
  3. || p-value is obtained from the chi-square test or the chi-square test for trend
  4. +Primary group was used as the baseline