Table 1 Average (standard deviation) and percentage of variable categories among dengue fever cases and controls, Campinas, 2007
From: Spatial distribution of the risk of dengue fever in southeast Brazil, 2006-2007
Variable | Cases (n = 538) | Controls (n = 727) | Total (n = 1265) |
|---|---|---|---|
Age, mean years (SD) | 40.8 (13.9) | 45.6 (15.4) | 43.6 (14.9) |
Sex: | |||
Male | 45% | 44.8% | 44.9% |
Female | 55% | 55.2% | 55.1% |
Education level, head of household, mean years of study (SD) | 6.7 (4.1) | 7.9 (4.5) | 7.4 (4.4) |
Stays home during the day: | |||
Yes | 36.6% | 49.9% | 44.3% |
No | 63.4% | 50.1% | 55.7% |
Has had dengue fever: | |||
Yes | 2.6% | 2.7% | 2.7% |
No | 97.4% | 97.3% | 97.3% |
Water supply: | |||
Centralized | 92.6% | 98.2% | 95.8% |
Well, Truck or "Improvised" | 7.4% | 1.8% | 4.2% |
Water shortage: | |||
Yes | 6.1% | 5.5% | 5.8% |
No | 77.5% | 77.3% | 77.4% |
Sometimes | 16.4% | 17.2% | 16.8% |
Water storage: | |||
Yes | 14.1% | 3.6% | 8.1% |
No | 85.9% | 96.4% | 91.9% |
Garbage around the house: | |||
Yes | 33.5% | 15.7% | 23.2% |
No | 66.5% | 84.3% | 76.8% |
Garbage collection (times per week): | |||
≤2 | 77.7% | 95.2% | 87.7% |
>2 | 22.3% | 4.8% | 12.3% |
Flood: | |||
Yes | 27.5% | 7.3% | 15.9% |
No | 72.5% | 92.7% | 84.1% |
Mosquito bites during the day: | |||
Yes | 67.8% | 58.1% | 62.2% |
No | 32.2% | 41.9% | 37.8% |
Basic sanitation: | |||
Centralized | 56.9% | 81.8% | 71.2% |
Cesspool | 18.8% | 13.3% | 15.7% |
Open air | 24.3% | 4.8% | 13.1% |
Presence of breeding sites: | 4 | ||
Yes | 61.9% | 37.3% | 7.7% |
No | 38.1% | 62.7% | 52.3% |
Number of breeding sites: | |||
0 | 38.1% | 62.7% | 52.3% |
1 to 10 | 31.4% | 18.6% | 24.0% |
>10 | 30.5% | 18.7% | 23.7% |
Presence of Larvae: | |||
Yes | 1.5% | 1.4% | 1.4% |
No | 98.5% | 98.6% | 98.6% |
Assessment of Larvae Densitya, mean (SD) | 1.6 (0.8) | 0.9 (0.9) | 1.2 (0.9) |