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Table 1 Pupal productivity in households by container type during the 2012 rainy season (August–September)

From: Pupal productivity in rainy and dry seasons: findings from the impact survey of a randomised controlled trial of dengue prevention in Guerrero, Mexico

  No. of containers % of all containers CI No. of pupae Mean pupae /container % of total pupal productivity
Intervention clusters
Water storage containers 21,291 97.3 7.0 2365 0.11 91
Pots, tyres etc 596 2.7 25 233 0.39 9
All containers 21,887 100 7.5 2598 0.12 100
Control clusters
Water storage containers 18,156 98.5 11.2 4175 0.23 93.4
Pots, tyres etc 280 1.5 37.5 297 1.06 6.64
All containers 18,436 100 11.5 4472 0.24 100
All clusters
Water storage containers 39,447 97.8 8.4 6540 0.17 92.5
Pots, tyres etc 876 2.2 50 530 0.61 7.5
All containers 40,323 100 9.3 7070 0.18 100
  1. CI container index (number of containers with any larvae or pupae, divided by the total number of containers in that category × 100)