Volume 10, Number 6—June 2004
Research
Environmental Exposure and Leptospirosis, Peru
Table 1
Site description and demographic characteristics of the study population
| Feature | Pampas San Juan | Rural communitiesa | Belen |
|---|---|---|---|
| Study period |
April 1997 |
Feb–Jun 2000 |
Feb–Oct 2001 |
| Population |
38,721 |
1,197 |
3,704 |
| No. households selected (%) |
7,744 (20) |
132 (56) |
386 (60) |
| No. participants tested (%) |
150 (0.4) |
316 (26) |
650 (18) |
| Sample population |
|||
| Female (%) |
57 (38) |
152 (48) |
356 (55) |
| Age >18 y (%) |
64 (43) |
170 (54) |
533 (82) |
| Mean (SDb) age, y |
17.5 (14.5) |
24.9 (17.9) |
30 (15.2) |
| Median |
11 |
22 |
29 |
| Mean (SD) no. persons per household |
5.7 (2.2) |
2.4 (1.6) |
1.7 (0.9) |
| Range | 3–14 | 1–9 | 1–5 |
aCombined populations of the villages of San Carlos, Moralillo, and Buen Pastor in the peri-Iquitos area.
bSD, standard deviation.


