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