Table 5 Summary estimates for the overall and subgroup analysis for school-based, non-integrated, and integrated delivery strategies

STH Prevalence (RR)

0.45 [0.38, 0.54]

0.49 [0.39, 0.63]

0.52 [0.41, 0.67]

0.30 [0.12, 0.78]

45 datasets, 12 studies

19 datasets from 6 studies

16 datasets from 4 studies

9 datasets from 1 study

Hookworm

0.38 [0.27, 0.53]

0.37 [0.22, 0.62]

0.49 [0.29, 0.85]

0.25 [0.04, 1.62]

15 datasets, 10 studies

7 datasets from 5 studies

5 datasets from 3 studies

3 datasets from 1 study

Ascariasis

0.32 [0.19, 0.52]

0.28 [0.09, 0.89]

0.36 [0.18, 0.74]

0.28 [0.09, 0.87]

15 datasets, 9 studies

4 datasets from 6 studies

6 datasets from 4 studies

3 datasets from 1 studies

Trichuriasis

0.66 [0.53, 0.82]

0.78 [0.67, 0.90]

0.76 [0.62, 0.94]

0.41 [0.07, 2.56]

14 datasets, 8 studies

4 datasets from 6 studies

5 datasets from 3 study

3 datasets from 1 studies

Schistosomiasis Prevalence (RR)

0.40 [0.33, 0.50]

0.50 [0.33, 0.75]

0.42 [0.31, 0.57]

0.24 [0.11, 0.56]

25 datasets, 13 studies

7 datasets from 5 studies

12 datasets from 4 studies

6 datasets from 4 studies

S. H a ematobium

0.40 [0.29, 0.57]

0.59 [0.35, 1.02]

0.42 [0.26, 0.70]

0.05 [0.01, 0.45]

10 datasets, 8 studies

3 datasets from 3 studies

5 datasets from 3 studies

2 datasets from 2 studies

S. Japonicum

0.24 [0.06, 0.87]

No studies

0.24 [0.06, 0.87]

No studies

4 datasets, 2 studies

4 datasets from 2 studies

S. Mansoni

0.48 [0.35, 0.65]

0.44 [0.27, 0.74]

0.68 [0.42, 1.10]

0.38 [0.16, 0.91]

11 datasets, 7 studies

4 datasets from 4 studies

3 datasets from 1 study

4 datasets from 2 studies

STH intensity (SMD)

−3.16 [−4.28, −2.04]

−0.22 [−0.26, −0.17]

−5.29 [−9.22, −1.36]

No studies

5 datasets, 3 studies

2 datasets, 2 studies

3 datasets from 1 study

Hookworm

−2.22 [−3.27, −1.17]

−0.22 [−0.26, −0.17]

−6.79 [−7.44, −6.14]

No studies

3 datasets, 3 studies

2 datasets, 2 studies

1 dataset from 1 study

Ascariasis

−7.25 [−7.93, −6.56]

No studies

−7.25 [−7.93, −6.56]

No studies

1 dataset, 1 study

1 dataset from 1 study

Trichuriasis

−1.87 [−2.16, −1.57]

No studies

−1.87 [−2.16, −1.57]

No studies

1 dataset, 1 study

1 dataset from 1 study

Mean hemoglobin (SMD)

0.34 [0.20, 0.47]

0.24 [0.16, 0.32]

0.93 [−0.33, 2.18]

0.09 [−0.01, 0.20]

14 datasets, 12 studies

7 datasets from 7 studies

3 datasets from 3 studies

4 datasets from 2 studies

Anemia

0.90 [0.85, 0.96]

0.87 [0.81, 0.94]

0.85 [0.69, 1.06]

0.99 [0.90, 1.09]

9 datasets, 7 studies

5 datasets from 5 studies

1 datasets from 1 study

3 datasets from 1 study

Serum ferritin (SMD)

2.30 [−1.13, 5.73]

0.10 [−0.04, 0.25]

No studies

−0.01 [−0.36, 0.34]

4 datasets, 4 studies

3 datasets from 3 studies

1 dataset from 1 study

Height

0.01 [−0.10, 0.12]

0.04 [−0.08, 0.15]

−0.19 [−0.53, 0.14]

No studies

4 datasets, 4 studies

3 datasets from 3 studies

1 dataset from 1 study

Weight

−0.13 [−0.42, 0.16]

−0.09 [−0.46, 0.27]

−0.27 [−0.60, 0.07]

No studies

4 datasets, 4 studies

3 datasets from 3 studies

1 dataset from 1 study

Birth outcomes

Birth weight

−9.52 [−13.86, −5.19]

No studies

No studies

−9.52 [−13.86, −5.19]

6 datasets, 3 studies

6 datasets from 3 studies

LBW

0.96 [0.78, 1.18]

No studies

No studies

0.96 [0.78, 1.18]

4 datasets, 2 studies

4 datasets from 2 studies

VLBW

0.38 [0.16, 0.87]

No studies

No studies

0.38 [0.16, 0.87]

4 datasets, 2 studies

4 datasets from 2 studies

Stillbirths

1.54 [0.93, 2.58]

No studies

No studies

1.54 [0.93, 2.58]

3 datasets, 1 study

3 datasets from 1 study