Table 4 Results for the overall and subgroup analysis according to type of study and treatment

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

Schistosoma Japonicum

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

Schistosoma Mansoni

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