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Table 2 Quality assessment of trials of the evidence for prevention in malaria in pregnancy (IPTp and ITNs) used during first or second pregnancy for preventing stillbirths

From: Effectiveness of interventions to screen and manage infections during pregnancy on reducing stillbirths: a review

Quality assessment

Summary findings

    

Directness

Intervention

Control

 

No of studies

Design

Limitations

Consistency of results

Generalizability to population of interest

Generalizability to intervention of interest

Number of events

Denominator

Number of events

Denominator

RR (95% CI)

IPTp for preventing stillbirths: High outcome-specific quality

3

RCT

 

Consistent X2 for heterogeneity (2 df) = 0.23

High

High

44

1,489

36

1,083

0.96 (0.62-1.50)

ITNs for preventing stillbirths: High outcome-specific quality

4

CRCT

Not blinded

Consistent X2 for heterogeneity (3 df) = 0.03

High

High

Unknown

Unknown

Unknown

Unknown

0.67 (0.47-0.97)

Effect of IPTp and ITNs combined on stillbirths : Moderate outcome-specific quality

7

RCT/ CRCT

 

Consistent X2 for heterogeneity (6 df) = 1.76

High

High

Unknown

Unknown

Unknown

Unknown

0.78 (0.59-1.03)

  1. RCT: Randomized controlled trial: CRCT: Community randomized controlled trial: RR: Relative risk: CI: Confidence Interval