Table 3.
Prevalences and period effects for P. falciparum infection and stunting, Trident project, 2011 and 2015, Zambia.
| P. Falciparum Infection in Children Aged 6–59 Months | Stunting in Children Aged 0–59 Months | |||||||
|---|---|---|---|---|---|---|---|---|
| n | Prevalence (%; 95% CI) | OR | p-Value | n | Prevalence (%; 95% CI) | OR | p-Value | |
| Difference at baseline | ||||||||
| Comparison (2011) | 43 | 32.5 (19.0–48.5) | 1.00 | 51 | 39.2 (25.8–53.8) | 1.00 | ||
| Impacted (2011) | 416 | 17.5 (14.0–21.5) | 0.33 (0.05–2.20) | 0.25 | 432 | 49.7 (44.9–54.5) | 1.61 (0.77–3.35) | 0.20 |
| Period effect 1 | ||||||||
| Comparison (2011) | 43 | 32.5 (19.0–48.5) | 1.00 | 51 | 39.2 (25.8–53.8) | 1.00 | ||
| Comparison (2015) | 65 | 70.7 (58.1–81.3) | 6.97 (2.20–22.0) | <0.01 | 68 | 47.0 (34.8–59.5) | 1.41 (0.58–3.46) | 0.44 |
| Period effect 1 | ||||||||
| Impacted (2011) | 416 | 17.5 (14.0–21.5) | 1.00 | 432 | 49.7 (44.9–54.5) | 1.00 | ||
| Impacted (2015) | 413 | 30.9 (26.5–35.6) | 2.51 (1.56–4.02) | <0.01 | 479 | 39.4 (35.0–43.9) | 0.63 (0.46–0.87) | <0.01 |
| Change over time in impacted vs. comparison sites | ||||||||
| Comparison (2011–2015) | n/a | n/a | 1.00 | n/a | n/a | 1.00 | ||
| Impacted (2011–2015) | n/a | n/a | 0.36 (0.10–1.23) | 0.10 | n/a | n/a | 0.44 (0.17–1.15) | 0.09 |
1 Describes the change in prevalence between 2011 and 2015; CI: confidence interval; n: sample size; n/a: not applicable; OR, odds ratio.