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Smoking cessation
| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Nicotine EC versus placebo EC | 2 | 662 | Risk Ratio (M‐H, Fixed, 95% CI) | 2.29 [1.05, 4.96] |
| 2 Nicotine EC versus nicotine replacement therapy | 1 | Risk Ratio (M‐H, Fixed, 95% CI) | Totals not selected |
