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Table 1 Impact of replacement of lids on mosquito breeding

From: The impact of mosquito proof lids of underground tanks “tanka” on the breeding of Anopheles stephensi in a village in western Rajasthan, India

Pre-Intervention Assessment (May/2018) Intervention Phasea (May/2018) Post-intervention Assessment (June/2019) Follow-up survey (May/2019)
Intervention village Non-Intervention (control village) Intervention village Intervention village Non-Intervention village Intervention village Non-Intervention village
Number of tankas checked No. positive with larvae (% positivity) Number of tankas checked No. with larval breeding (% positivity) Lid Replaced Replacement (%) Number checked Positive (% positivity) Number checked Positive (% positivity) Number checked Positive (% positivity) Number checked Positive (% positivity)
143 28 (19.6) 37 8 (21.6) 129 90.2 200 0 (%) 31 2 (6.5) 200 4 (2%) 27 9 (33.3)
7 2 (28.6) 0 0 (0.0) 5 71.4 0 0 0 0
4 3 (75.0) 0 0 (0.0) 4 100.0 0 0 0 0
55 6 (10.9) 19 2 (10.5) 14 25.5 16 1 (6.3) 12 1 (8.3)
48 16 (33.3) 13 8 (61.5) 48 100.0 10 2 (20) 7 4 (57.1)
5 3 (60.0) 1 1 (100.0) 0 0.0 5 1 (20) 2 2 (100)
262 58 (22.1) 70 19 (27.1) 200 76.3 200 0 (0%) 62 6 (9.7) 200 4 (2%) 48 16 (33.3)
  1. aNo replacement of lids in non-intervention village
  2. bFollow-up was done only for tankas with replaced lids in Ajasar village