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Table 1 Age-dependency of malaria in the baseline and follow-up surveys

From: Hot spot or not: a comparison of spatial statistical methods to predict prospective malaria infections

Outcome Age (years) Total in each group % positive OR 95% CI Wald test P value
Infection by PCR ( baseline survey )* 0-4 788 [27.5]   1 <0.001
  5-9 622 [47.9]   2.80 [2.17-3.62] <0.001
  10-15 413 [50.1]   3.26 [2.44-4.35] 0.005
  16-25 409 [33.7]   1.52 [1.13-2.04] 0.721
  26-35 328 [26.5]   0.94 [0.68-1.30] 0.007
  36+ 496 [20.6]   0.66 [0.49-0.89]  
Infection by PCR ( follow - up survey ) 0-4 824 [42.4]   1 <0.001
  5-9 644 [68.8]   4.77 [3.52-6.47] <0.001
  10-15 359 [70.2]   5.58 [3.84-8.10] <0.001
  16-25 445 [52.8]   1.96 [1.41-2.73] 0.661
  26-35 337 [44.8]   1.08 [0.75-1.56] 0.393
  36+ 637 [39.7]   0.87 [0.63-1.20]  
AMA -1 seropositivity (baseline survey ) 0-4 688 [21.7]   1 <0.001
  5-9 517 [53.0]   5.13 [3.84-6.86] <0.001
  10-15 321 [64.2]   8.87 [6.29-12.50] <0.001
  16-25 354 [60.2]   7.60 [5.47-10.56] <0.001
  26-35 294 [51.0]   4.60 [3.29-6.42] <0.001
  36+ 416 [50.5]   4.39 [3.24-5.96]  
MSP-1 19 seropositivity (baseline survey) 0-4 698 [14.5]   1 0.111
  5-9 568 [16.9]   1.31 [0.94-1.84] <0.001
  10-15 346 [30.6]   3.21 [2.24-4.59] <0.001
  16-25 361 [34.9]   3.90 [2.75-5.51] <0.001
  26-35 291 [38.5]   4.90 [3.39-7.07] <0.001
  36+ 447 [40.3]   5.10 [3.66-7.10]  
  1. *age was missing for one individual.