A Cochrane review [Abstract] 1 included 13 studies with a total of 819 subjects. The average change in lean body mass was 1.3 kg (95% CI: 0.6, 2.0), while the average change in total body weight was 1.1 kg (95% CI: 0.3, 2.0). Significant heterogeneity was present for both outcomes. Four deaths occurred in both the anabolic steroid and placebo treatment groups during the treatment period. There was no difference for withdrawals or discontinuations of study medication due to adverse events.
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