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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Driving Under the Influence of Alcohol and/or Drugs | 2 | Odds Ratio (Random, 95% CI) | Subtotals only | |
| 1.1 Individual Targeted | 2 | 94 | Odds Ratio (Random, 95% CI) | 0.59 [0.14, 2.48] |
