Table 1. Epidemiological characteristics of study sites.
| Iquitos | Mazán | p-value | |
|---|---|---|---|
| (n = 880) | (n = 1024) | ||
| Communities, n (%) | |||
| Rumococha | 295 (33.5%) | ||
| Santo Tomás | 298 (33.9%) | ||
| Quistococha | 287 (32.6%) | ||
| Gamitanacocha | 48 (4.7%) | ||
| Libertad | 184 (18.0%) | ||
| Primero de Enero | 58 (5.7%) | ||
| Salvador | 278 (27.1%) | ||
| Lago Yuracyacu | 97 (9.5%) | ||
| Puerto Alegre | 169 (16.5%) | ||
| Urco Miraño | 190 (18.6%) | ||
| Individual level variables | |||
| Age, median (min—max) | 26.00 (0–117) | 20.00 (0–87) | <0.001 |
| Age groups, n (%) | |||
| ≤ 4.9 | 56 (6.4%) | 127 (12.4%) | <0.001 |
| 5–14.9 | 256 (29.1%) | 347 (33.9%) | 0.024 |
| 15–29.9 | 199 (22.6%) | 134 (13.1%) | <0.001 |
| 30–49.9 | 199 (22.6%) | 218 (21.3%) | 0.486 |
| ≥ 50 | 170 (19.3%) | 198 (19.3%) | 0.922 |
| Gender, n (%) | <0.001 | ||
| Female | 519 (59.0%) | 521 (50.9%) | |
| Male | 361 (41.0%) | 503 (49.1%) | |
| Education | <0.001 | ||
| None or primary | 462 (52.8%) | 749 (81.9%) | |
| Secondary or higher | 413 (47.2%) | 165 (18.1%) | |
| Outdoor occupation (logger, fisher, and farmer) | <0.001 | ||
| Yes | 78 (8.9%) | 419 (40.9%) | |
| No | 802 (91.1%) | 605 (59.1%) | |
| Fever, n (%) | 22 (2.5%) | 12 (1.2%) | 0.045 |
| Household level variables | |||
| Households, n | 358 | 263 | |
| Household size | 0.090 | ||
| < 5 individuals | 178 (49.7%) | 113 (43.0%) | |
| ≥ 5 individuals | 180 (50.3%) | 150 (57.0%) | |
| Housing type, n (%) | 0.004 | ||
| Open house (0–3 walls) | 56 (15.6%) | 21 (7.9%) | |
| Complete | 302 (84.4%) | 242 (92.1%) | |
| Livestock inside dwelling | 0.565 | ||
| Yes | 88 (24.6%) | 70 (26.6%) | |
| No | 270 (75.4%) | 193 (73.4%) | |
Frequency of categorical covariates were compared by χ2 test and age median were compared by Mann-Whitney U test. Livestock inside dwelling: Dog, Cat, Chicken.