Table 3 Modified Newcastle-Ottawa quality assessment scale ratings for the 12 cross-sectional studies
From: Risk markers for fatal and non-fatal prescription drug overdose: a meta-analysis
| Â | Representativeness of sample | Sample size | Non-respondents | Ascertainment of the risk marker | Comparability | Ascertainment of the outcome | Statistical test | Out of 10 points |
|---|---|---|---|---|---|---|---|---|
CDC Medicaid. 2009 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 5 (low) |
CDC Non-illicit Drugs Utah 2005 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 5 (low) |
CDC Prescription opioid pain relievers. 2011 | 1 | 0 | 0 | 1 | 1 | 2 | 1 | 6 (low) |
CDC Urbanization, New Mexico, 2005 | 1 | 0 | 0 | 2 | 2 | 2 | 1 | 8 (high) |
Coben et al. 2010 | 1 | 0 | 0 | 1 | 1 | 2 | 1 | 6 (low) |
Havens et al. 2011a | 1 | 0 | 0 | 1 | 2 | 1 | 1 | 5 (low) |
Hall et al. 2008 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 5 (low) |
Hulse et al. 2001 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 4 (low) |
Mack 2013 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 5 (low) |
Piercefield et al. 2010 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 5 (low) |
Rudd et al. 2016 | 1 | 0 | 0 | 1 | 1 | 2 | 1 | 6 (low) |
Silva et al. 2013 | 1 | 0 | 0 | 0 | 2 | 1 | 1 | 5 (low) |
| Â | Â | Â | Â | Â | Â | Â | mean | 5.4 |