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Table 2 Numbers of mosquitoes trapped by CDC-LT, and CDC-LT performance

From: Evaluation of CDC light traps for mosquito surveillance in a malaria endemic area on the Thai-Myanmar border

  Trap-nights n MTY aCRR P 95 % CI
Ae. albopictus ( n= 68)
Trap w/o CO2 (reference) 1280 36 10     
Trap with CO2 1600 32 7 0.81 0.52 0.41 1.56
Indoor trap (reference) 1655 51 11 - - - -
Outdoor trap 1225 17 5 0.53 0.07 0.27 1.05
Anopheles spp. ( n= 2989)
Trap w/o CO2 (reference) 1280 1157 330     
Trap with CO2 1600 1832 418 1.39 0.04 1.01 1.61
Indoor trap (reference) 1655 1628 359 - - - -
Outdoor trap 1225 1361 406 0.92 0.53 0.74 1.17
An. annularis s.l. ( n= 431)
Trap w/o CO2 (reference) 1280 171 49     
Trap with CO2 1600 260 59 1.28 0.37 0.75 2.17
Indoor trap (reference) 1655 161 35 - - - -
Outdoor trap 1225 270 80 1.4 0.21 0.83 2.34
An. maculatus s.l. ( n= 641)
Trap w/o CO2 (reference) 1280 250 71 - - - -
Trap with CO2 1600 391 89 1.27 0.18 0.90 1.75
Indoor trap (reference) 1655 378 83 - - - -
Outdoor trap 1225 263 78 0.52 0.60 0.79 1.51
An. minimus s.l. ( n= 1206)
Trap w/o CO2 (reference) 1280 448 128     
Trap with CO2 1600 758 173 1.27 0.11 0.95 1.69
Indoor trap (reference) 1655 679 150 - - - -
Outdoor trap 1225 527 157 0.71 0.02 0.52 0.95
Armigeres spp. ( n= 404)
Trap w/o CO2 (reference) 1280 159 45     
Trap with CO2 1600 245 55 1.22 0.28 0.89 1.75
Indoor trap (reference) 1655 174 38 - - - -
Outdoor trap 1225 230 68 1.5 0.02 1.06 2.12
Culex spp. ( n= 3094)
Trap w/o CO2 (reference) 1280 1122 320     
Trap with CO2 1600 1972 450 1.16 0.23 0.91 1.49
Indoor trap (reference) 1655 1675 369 - - - -
Outdoor trap 1225 1419 423 0.85 0.19 0.66 1.08
Cx. quinquefasciatus ( n= 201)
Trap w/o CO2 (reference) 1280 53 15     
Trap with CO2 1600 148 34 1.02 0.94 0.61 1.72
Indoor trap (reference) 1655 157 32 - - - -
Outdoor trap 1225 44 13 0.67 0.14 0.39 1.13
Cx. vishnui ( n= 997)
Trap w/o CO2 (reference) 1280 280 250     
Trap with CO2 1600 717 391 1.64 0.02 1.09 2.44
Indoor trap (reference) 1655 446 378 - - - -
Outdoor trap 1225 531 263 0.88 0.55 0.59 1.32
  1. Note: n: absolute number of mosquitoes captured; MTY: mosquitoes per trap and year; aCRR: adjusted capture rate ratio; 95 % CI: 95 % confidence interval; Bold numbers: significant difference in aCRR (P < 0.05). Ae.: Aedes, An.: Anopheles, Cx.: Culex, w/o: with/without
  2. Comparisons were made between traps augmented with CO2 baits and those with no baits and between traps placed in indoor and outdoor locations. Models are adjusted for region and season