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Table 1 Profile of the 90 baseline survey clusters, stratified by region

From: Dengue occurrence relations and serology: cross-sectional analysis of results from the Guerrero State, Mexico, baseline for a cluster-randomised controlled trial of community mobilisation for dengue prevention

Features Acapulco n = 30 Costa Grande n = 30 Costa Chica n = 30 Total n = 90
Drainage at households 16 7 8 31
Paved streets 11 2 1 14
Ditches or ravines present 27 28 27 82
Blocked ditches 16 8 12 36
Mean no. empty lots (range) 21.2 (0–85) 23.3 (0–96) 20.0 (0–96) 21.4 (0–96)
Uninhabited homes 18 21 9 48
Health center present 12 23 18 53
Tap water to households 19 17 21 57
Local water system 24 20 24 68
Regular water supply 7 16 20 43
Alternative source if supply fails— well or water storage tank 14 13 14 41
Garbage collection service 25 16 9 50
Regular garbage collection service 15 9 6 30
Garbage collection frequency: every three days 3 1 2 6
Adequate collection service 13 6 4 23
Organized groupsa 8 5 7 20
  1. aTaxi drivers, Alcoholics Anonymous, Oportunidades groups, religious/social/political groups