Skip to main content

Table 3 Range of study designs included in systematic review

From: Systematic review to evaluate a potential association between helminth infection and physical stunting in children

Study design

Number of studies

Case reports

2

Case series

5

Case–control

0

Cluster intervention

1

Community-based non-randomised trial

2

Controlled trial

3

Cross-sectional

1

Pre-post study

21

Randomised controlled trial (RCT)

43

Randomised triala

1

Survey

1

Total

80

  1. a[91] Control group deemed unethical, therefore low/moderate/high efficacy intervention groups instead