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Table 4 Multivariate ordinal logistic regression analysis of serological response to P . falciparum antigens

From: Plasmodium vivax and Plasmodium falciparum infections in the Republic of Djibouti: evaluation of their prevalence and potential determinants

  N P RE
L1 L2 L3 Total cOR (CI95%) aOR (CI95%) p-value
Gender
Male 742 80 79 97 256 1 1 0.0008
Female 1168 116 127 103 346 0.78 (0.65-0.95) 0.66 (0.54-0.81)
Educational level
No school 1244 141 145 162 448 1 1  
Primary 410 40 39 27 106 0.61 (0.47-0.77) 0.60 (0.47-0.77)  
Secondary, high school or University 256 15 22 11 48 0.41 (0.30-0.57) 0.39 (0.28-0.55)  
Staying in a malaria endemic country more than one year         
Yes 167 19 18 33 70 1 1 0.0019
No 1743 177 188 167 532 0.57 (0.42-0.78) 0.55 (0.40-0.76)  
Having fever during the last month         
Yes 435 48 58 69 175 1 1 0.0002
No 1475 148 148 131 427 0.59 (0.47-0.72) 0.59 (0.47-0.73)  
Distance to rivers and lakes (Km)         
> 1.5 Km 1210 124 121 101 346 1 1 0.0007
≤ 1.5 Km 700 72 85 99 256 1.49 (1.23-1.81) 1.53 (1.25-1.87)  
Bed nets utilization
Often to Always 769 82 90 107 279 1 1 0.0007
Rarely to Never 1141 114 116 93 323 0.67 (0.56-0.81) 0.61 (0.50-0.74)  
  1. N = number; P = seropositivity to P. falciparum; L = level of intensity of immunological response (seropositivity to P. falciparum antigens) measured in MFI with 3 levels: 1, 2, 3 corresponding respectively to 1000 ≤ MFI < 3800, 3800 ≤ MFI < 8000, MFI ≥ 8000. The level L0 is not shown here as it’s corresponding to value of MFI < 1000 considered as negative reaction. RE = Random effect; cOR = Crude Odd ratio; aOR = Adjusted Odd ratio; CI95% = Confident interval 95%.