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Table 2 Genotypes (RR, RS and SS) and species (An. gambiae and An. coluzzii) comparisons for infection by oocysts

From: Effects of the kdr resistance mutation on the susceptibility of wild Anopheles gambiae populations to Plasmodium falciparum: a hindrance for vector control

Group Category 1 Category 2 Difference C1–C2 T df p
An. gambiae SS RS -2.2 -2.7643 177,837.2 < 2e-16
  SS RS -3.8 -4.2698 177,885.9 < 2e-16
  RS RR -1.5 -1.8111 177,868.5 < 2e-16
An. coluzzii SS RS -2.6 -2.9996 177,863.4 < 2e-16
  SS RS -3.5 -3.8752 178,162.7 < 2e-16
  RS RR -0.9 -1.2173 178,173.7 < 2e-16
SS An. gambiae An. coluzzii 0.0 -0.03 177,784.3 0.98
RS An. gambiae An. coluzzii -0.3 -2.00 177,699.3 0.05
RR An. gambiae An. coluzzii 0.3 2.17 177,743.0 0.03
  1. Further, a test was done to see whether these estimates were significantly different from zero, i.e., whether the two genotypes are significantly different, with the difflsmeans procedure. p ≤0.05 was considered significant (in bold). Note that between-species differences are lower (and barely significant) than between-genotype differences.