Table 4.
Results for the overall and subgroup analysis according to type of study and treatment
|
Outcomes |
Estimates (95% CI) |
|
|||
|---|---|---|---|---|---|
| Combined | RCTs | Pre-post studies | Preventive | Therapeutic | |
|
STH Prevalence (RR) |
0.47 [0.41, 0.54] |
0.47 [0.41, 0.55] |
0.51 [0.40, 0.65] |
0.43 [0.31, 0.59] |
0.52 [0.44, 0.61] |
| 45 datasets from 12 studies |
40 datasets from 9 studies |
5 datasets from 3 studies |
22 datasets from 7 studies |
23 datasets from 5 studies |
|
| Hookworm |
0.40 [0.31, 0.52] |
0.41 [0.32, 0.54] |
0.39 [0.23, 0.65] |
0.26 [0.14, 0.45] |
0.60 [0.46, 0.78] |
| 15 datasets, 10 studies |
13 datasets from 8 studies |
2 datasets from 2 studies |
8 datasets from 6 studies |
7 datasets from 4 studies |
|
| Ascariasis |
0.32 [0.20, 0.51] |
0.30 [0.18, 0.49] |
0.61 [0.41, 0.90] |
0.62 [0.38, 1.01] |
0.18 [0.08, 0.40] |
| 15 datasets, 9 studies |
14 datasets from 8 studies |
1 dataset from 1 study |
7 datasets from 4 studies |
8 datasets from 5 studies |
|
| Trichuriasis |
0.66 [0.55, 0.80] |
0.65 [0.53, 0.79] |
0.97 [0.68, 1.37] |
0.57 [0.22, 1.46] |
0.76 [0.66, 0.88] |
| 14 datasets, 8 studies |
13 datasets from 7 studies |
1 dataset from 1 study |
6 datasets from 3 studies |
8 datasets from 5 studies |
|
|
Schistosomiasis Prevalence (RR) |
0.41 [0.34, 0.50] |
0.42 [0.33, 0.54] |
0.37 [0.25, 0.55] |
0.39 [0.27, 0.55] |
0.41 [0.30, 0.55] |
| 25 datasets, 13 studies |
16 datasets from 6 studies |
9 datasets from 7 studies |
11 datasets from 7studies |
14 datasets from 6 studies |
|
|
Schistosoma Haematobium
|
0.41 [0.30, 0.57] |
0.43 [0.29, 0.64] |
0.33 [0.17, 0.65] |
0.59 [0.35, 1.02] |
0.31 [0.18, 0.52] |
| 10 datasets, 8 studies |
6 datasets from 4 studies |
4 datasets from 4 studies |
3 datasets from 3 studies |
7 datasets from 5 studies |
|
|
SchistosomaJaponicum |
0.24 [0.07, 0.80] |
0.24 [0.07, 0.80] |
No studies |
0.11 [0.05, 0.26] |
0.30 [0.07, 1.31] |
| 4 datasets, 2 studies |
4 datasets from 2 studies |
1 dataset from 1 study |
3 datasets from 1 study |
||
|
SchistosomaMansoni |
0.48 [0.36, 0.64] |
0.55 [0.38, 0.81] |
0.39 [0.25, 0.62] |
0.37 [0.24, 0.58] |
0.67 [0.45, 1.01] |
| 11 datasets, 7 studies |
6 datasets from 2 studies |
5 datasets from 5 studies |
7 datasets from 5 studies |
4 datasets from 2 studies |
|
|
STH intensity (SMD) |
−3.16 [−4.28, −2.04] |
−5.29 [−9.22, −1.36] |
−0.22 [−0.26, −0.17] |
−0.22 [−0.26, −0.17] |
−5.29 [−9.22, −1.36] |
| 5 datasets, 3 studies |
3 datasets from 1 study |
2 datasets from 2 studies |
2 datasets from 2 studies |
3 datasets from 1 study |
|
| Hookworm |
−2.22 [−3.27, −1.17] |
−6.79 [−7.44, −6.14] |
−0.22 [−0.26, −0.17] |
−0.22 [−0.26, −0.17] |
−6.79 [−7.44, −6.14] |
| 3 datasets, 03 studies |
1 dataset from 1 study |
2 datasets from 2 studies |
2 datasets from 2 studies |
1 dataset from 1 study |
|
| Ascariasis |
−7.25 [−7.93, −6.56] |
−7.25 [−7.93, −6.56] |
No studies |
No studies |
−7.25 [−7.93, −6.56] |
| 1 dataset, 1 study |
1 dataset from 1 study |
1 dataset from 1 study |
|||
| Trichuriasis |
−1.87 [−2.16, −1.57] |
−1.87 [−2.16, −1.57] |
No Studies |
No studies |
−1.87 [−2.16, −1.57] |
| 1 dataset, 01 study |
1 dataset from 1 study |
1 dataset from 1 study |
|||
|
Mean hemoglobin (SMD) |
0.34 [0.20, 0.47] |
0.43 [0.15, 0.71] |
0.22 [0.13, 0.31] |
0.19 [0.12, 0.26] |
1.28 [−0.53, 3.08] |
| 14 datasets, 12 studies |
9 datasets from 7 studies |
5 datasets from 5 studies |
12 datasets from 10 studies |
2 datasets from 2 studies |
|
|
Anemia |
0.90 [0.85, 0.96] |
0.92 [0.85, 1.00] |
0.87 [0.78, 0.97] |
0.90 [0.85, 0.96] |
0.85 [0.69, 1.06] |
| 9 datasets, 7 studies |
5 datasets from 3 studies |
4 datasets from 4 studies |
8 datasets from 6 studies |
1 dataset from 1 study |
|
|
Serum ferritin (SMD) |
2.30 [−1.13, 5.73] |
0.06 [−0.07, 0.18] |
0.10 [−0.16, 0.37] |
0.09 [−0.12, 0.29] |
0.07 [−0.07, 0.20] |
| 4 datasets, 4 studies |
2 dataset from 2 studies |
2 datasets from 2 studies |
3 datasets from 3 studies |
1 dataset from 1 study |
|
|
Height |
0.01 [−0.10, 0.12] |
−0.04 [−0.16, 0.08] |
0.23 [−0.02, 0.49] |
0.08 [−0.12, 0.28] |
−0.02 [−0.15, 0.11] |
| 4 datasets, 4 studies |
3 datasets from 3 studies |
1 dataset from 1 study |
2 datasets from 2 studies |
2 datasets from 2 studies |
|
|
Weight |
−0.13 [−0.42, 0.16] |
−0.28 [−0.66, 0.11] |
0.22 [−0.03, 0.47] |
−0.01 [−0.48, 0.46] |
−0.35 [−1.13, 0.42] |
| 4 datasets, 4 studies |
3 datasets from 3 studies |
1 dataset from 1 study |
2 datasets from 2 studies |
2 data sets from 2 studies |
|
|
Birth outcomes |
|
|
|
|
|
| Birth weight |
−9.52 [−13.86, −5.19] |
−9.52 [−13.86, −5.19] |
No studies |
−9.52 [−13.86, −5.19] |
No study |
| 6 datasets, 3 studies |
6 datasets from 3 studies |
6 datasets from 3 studies |
|||
| LBW |
0.96 [0.78, 1.18] |
0.96 [0.78, 1.18] |
No studies |
0.96 [0.78, 1.18] |
No studies |
| 4 datasets, 2 studies |
4 datasets from 2 studies |
4 datasets from 2 studies |
|||
| VLBW |
0.48 [0.19, 1.19] |
0.48 [0.19, 1.19] |
No studies |
0.48 [0.19, 1.19] |
No studies |
| 4 datasets, 2 studies |
4 datasets, 2 studies |
4 datasets, 2 studies |
|||
| Stillbirths | 1.54 [0.93, 2.58] |
1.54 [0.93, 2.58] |
No studies | 1.54 [0.93, 2.58] |
No studies |
| 3 datasets, 1 study | 3 datasets from 1 study | 3 datasets from 1 study | |||
*estimates in bold are statistically significant.