Table 1.
Univariate analysis of the adherence to yearly stool testing from 2013 (baseline) to 2015 among schoolchildren in the middle years of schooling (6th to 8th year) in eight public schools of Fundamental Education in Malacacheta, Minas Gerais, either subjected to schistosomiasis-related educational actions in 2013 (Experimental Group) or not (Control Group).
| Parameter | 2013 |
2014 |
2015 |
||||
|---|---|---|---|---|---|---|---|
| n (%) | 95% CI | n (%) | 95% CI | n (%) | 95% CI | ||
| Number adhering to stool testing (N = 937) | 767 (81.8) | 78.8–84.6 | 632 (67.4) | 63.9–70.8 | 557 (59.4) | 55.7–63.0 | |
| By intervention Group | Experimental (N = 414) | 343 (84.1) | 78.2–86.7 | 306 (73.9) | 68.7–78.6 | 307 (74.2) | 68.9–78.8 |
| Control (N = 523) | 424 (81.1) | 76.8–84.7 | 326 (62.3) | 57.3–67.0 | 250 (47.8) | 42.8–52.7 | |
| Test statistics | χ2 = 0.49, p = 0.48 | χ2 = 14.12, p = 0.00⁎ | χ2 = 66.57, p = 0.00⁎ | ||||
| By area of residence | Rural (N = 449) | 395 (88.0) | 84.0–91,1 | 358 (79.7) | 75.0–83.8 | 355 (79.1) | 74.3–83.2 |
| Urban (N = 488) | 372 (76.2) | 71.5–80.3 | 274 (56.2) | 50.9–61.2 | 202 (41.4) | 36.3–46.5 | |
| Test statistics | χ2 = 21.72, p = 0.00⁎ | χ2 = 69.28, p = 0.000⁎ | χ2 = 137.65, p = 0.00⁎ | ||||
| By gender | Female (N = 461) | 388 (84.2) | 80.0–87.7 | 314 (68.1) | 62.9–72.9 | 273 (59.2) | 53.9–64.3 |
| Male (N = 476) | 379 (79.6) | 75.1–83.6 | 318 (66.8) | 61.7–71.5 | 284 (59.7) | 54.4–64.7 | |
| Test statistics | χ2 = 3.26, p = 0.07 | χ2 = 0.18, p = 0.67 | χ2 = 0.02, p = 0.89 | ||||
Significance of differences in adherence between intervention groups, between areas of residence (rural/urban) and between genders (female/male) were evaluated by chi-square (χ2) test. p-Values below 0.05 indicate statistical significance. N, total number of children attending school at the times of the three annual parasitological surveys; n, number of adhering individuals; CI, confidence interval
Significant difference (p < 0.05).