TABLE 2.
Univariate and multivariate analysis for risk factor of Blastocystis infectiona
| Variable factor | No. of enrolled subjects (%) | No. of infected subjects (%) | Raw valuesb |
Adjusted valuesb |
||
|---|---|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | |||
| Sex | ||||||
| Male | 334 (44.8) | 49 (14.7) | 1 | |||
| Female | 411 (55.2) | 68 (16.5) | 1.2 (0.8–1.7) | 0.485 | ||
| Age (yr) | 745 (100.0) | 117 (15.7) | 1.00 (0.99–1.01) | 0.299 | 1.01 (0.99–1.02) | 0.461 |
| <20 | 108 (14.5) | 11 (10.2) | 1 | |||
| 20–29 | 18 (2.4) | 3 (16.7) | 1.8 (0.4–7.1) | 0.423 | ||
| 30–39 | 66 (8.9) | 6 (9.1) | 0.9 (0.3–2.5) | 0.814 | ||
| 40–49 | 161 (21.6) | 40 (24.8) | 2.9 (1.4–6.0) | 0.004 | ||
| 50–59 | 202 (27.1) | 32 (15.8) | 1.7 (0.8–3.4) | 0.173 | ||
| >60 | 190 (25.5) | 25 (13.2) | 1.3 (0.6–2.8) | 0.450 | ||
| Living in Non Sa Ard or Tun Geang Village | ||||||
| No | 569 (76.4) | 71 (12.5) | 1 | |||
| Yes | 176 (23.6) | 46 (26.1) | 2.5 (1.6–3.8) | <0.01 | 1.9 (1.2–2.9) | 0.008 |
| Occupation | ||||||
| Agriculture | 426 (57.2) | 61 (14.3) | 1 | |||
| Animal career | 102 (13.7) | 40 (39.2) | 3.9 (2.4–6.2) | <0.01 | ||
| Other | 217 (29.1) | 16 (7.4) | 0.5 (0.3–0.8) | 0.012 | ||
| Education | ||||||
| Primary school or below | 559 (75.0) | 97 (17.4) | 1 | |||
| Middle school or above | 186 (25.0) | 20 (10.8) | 0.6 (0.3–1.0) | 0.034 | 0.7 (0.4–1.3) | 0.250 |
| Washing hands before eating | ||||||
| No | 206 (27.7) | 36 (17.5) | 1 | |||
| Yes | 539 (72.3) | 81 (15.0) | 0.8 (0.5–1.3) | 0.412 | ||
| Washing hands after defecation | ||||||
| No | 278 (37.3) | 62 (22.3) | 1 | |||
| Yes | 467 (62.7) | 55 (11.8) | 0.5 (0.3–0.7) | <0.01 | 0.7 (0.4–1.1) | 0.092 |
| Raising and breeding chickens | ||||||
| No | 414 (55.6) | 63 (15.2) | 1 | |||
| Yes | 331 (44.4) | 54 (16.3) | 1.1 (0.7–1.6) | 0.683 | ||
| Raising and breeding cows | ||||||
| No | 539 (72.3) | 81 (15.0) | 1 | |||
| Yes | 206 (27.7) | 36 (17.5) | 1.2 (0.8–1.8) | 0.412 | ||
| Raising and breeding pigs | ||||||
| No | 606 (81.3) | 59 (9.7) | 1 | |||
| Yes | 139 (18.7) | 58 (41.7) | 6.6 (4.3–10.2) | <0.001 | 5.4 (3.4–8.5) | <0.001 |
a
Data were adjusted for sex, age, living village, occupation, education, washing hands before eating, washing hands after defecation, and raising and breeding livestock, i.e., chicken, cow, and pig.
b
OR, odds ratio; CI, confidence interval.