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Table 4 Plasmodium falciparum circumsporozoite protein (CSP+) rates in Anopheles samples by method and year of collection

From: Patterns of anopheline feeding/resting behaviour and Plasmodium infections in North Cameroon, 2011–2014: implications for malaria control

HD Collection method Year of collection Total χ 2 P-value
2011 2012 2013 2014
n CSP+ (%) n CSP+ (%) n CSP+ (%) n CSP+ (%) n CSP+ (%)
GRA OUT 32 0 11 0 479 0.83 250 2.40 772 1.30 7.77 0.02
EXIT 16 0 9 0 287 1.05 121 4.96 433 2.08
IN 66 3.03 24 8.33 370 1.35 169 7.69 629 3.50
Total 114 1.75 47 4.25 1137 1.06 540 4.63 1834 2.23 22.42 0.00005
PIT OUT 407 0.25 184 0 181 1.10 484 1.45 1256 0.80 17.98 0.0001
EXIT 14 0 20 0 293 1.02 227 2.64 554 1.62
IN 179 1.12 351 1.12 295 5.76 293 4.09 1118 3.22
Total 600 0.50 555 0.72 769 2.86 1004 2.49 2928 1.84 16.56 0.0008
MYO OUT 3 0 21 0 30 0 44 4.55 98 2.04 2.06 0.36
EXIT 10 0 1 0 43 4.65 72 2.78 126 3.17
IN 34 2.94 5 20.00 57 7.02 71 4.22 167 5.39
Total 47 2.13 27 3.70 130 4.61 187 3.74 391 3.82 0.57 0.90
  1. Abbreviations: n, number of mosquitoes tested; HD, health district; GRA, Garoua; PIT, Pitoa; MYO, Mayo Oulo; OUT, outdoors; EXIT, exit trap; IN, indoors