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

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

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 groups^a	8	5	7	20

^aTaxi drivers, Alcoholics Anonymous, Oportunidades groups, religious/social/political groups

ISSN: 1471-2458