Table 1 Quality ratings of included studies
From: Effectiveness of bystander naloxone administration and overdose education programs: a meta-analysis
Authors | Research questions/objectives/hypothesis are clear and appropriate | Clear overview of intervention is given with use of appropriate outcome measures | Sample size is given | Randomization method used in sample selection | Attrition rate is recorded and discussed | Data analysis is adequately described and rigorous | Outcomes are clearly described | Ethical issues are suitably addressed | Total score |
|---|---|---|---|---|---|---|---|---|---|
Williams et al. (2014) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Gaston et al. (2009)a | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 7 |
Strang et al. (2008)a | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 7 |
Green et al. (2008) | 1 | 1 | 1 | 0 | N/A | 1 | 1 | 1 | 6 |
Jones et al. (2014) | 1 | 1 | 1 | 0 | N/A | 1 | 1 | 1 | 6 |
Lankenau et al. (2013) | 1 | 1 | 1 | 0 [0.5] | N/A | 1 | 0 [0.5] | 1 | 6 |
McAuley et al. (2010) | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 7 |
Galea et al. (2006) | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 7 |