Study designs of evaluations included in the review
Controlled and uncontrolled studies were included. Data on the effectiveness of hCG treatment was given for randomised controlled trials (RCTs) only. The duration of the intervention ranged from 3 to 8 weeks, the majority of studies having no follow-up.
Specific interventions included in the review
Studies investigating the effect of hCG in weight reduction. hCG (or CG) in combination with restricted diet, daily group sessions, lectures on diet, obesity and behaviour or weekly supporting interviews.
Participants included in the review
Obese patients were included.
Outcomes assessed in the review
Weight-loss, fat-redistribution, hunger, and the feeling of well-being were assessed.
How were decisions on the relevance of primary studies made?
The authors do not state how the papers were selected for the review, or how many of the authors performed the selection.