From: Epidemiology and factors associated with amoebic liver abscess in northern Sri Lanka
Factors | Category | Patients (Cases) | E. histolytica serum antibody negative individuals (controls) | ||
---|---|---|---|---|---|
N = 346 | % with CI | N = 100 | % with CI | ||
Alcohol drinking habit | yes | 346 | 100 (99.1–100) | 100 | 100 (99.1–100) |
Type of alcohol | Only Toddy | 72 | 20.8 (16.8–25.3) | 94 | 94 (87.9–97.5) |
Toddy + arrack | 274 | 79.2 (74.7–83.2) | 6 | ||
Type of toddy | Palmyrah | 346 | 100 (99.1–100) | 100 | 100 (99.1–100) |
Frequency of drinking | Daily | 245 | 70.8 (65.9–75.4) | 2 | 6 (2.5–12.1) |
4–6 times a week | 101 | 29.2 (24.6–34.1) | 20 | 20 (13.0–28.7) | |
2–3 times a week | 0 | 0 | 10 | 10 (5.2–17.1) | |
2–4 times a month | 0 | 0 | 68 | 68 (58.4–76.6) |