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. 2017 Feb 14;2017(2):CD001055. doi: 10.1002/14651858.CD001055.pub5

Comparison 5. Smoking cessation interventions: health education vs less intensive intervention.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Abstinence in late pregnancy 4 1282 Risk Ratio (M‐H, Random, 95% CI) 1.20 [0.85, 1.70]
1.1 Single interventions 2 853 Risk Ratio (M‐H, Random, 95% CI) 1.41 [0.99, 2.01]
1.2 Multiple interventions 1 198 Risk Ratio (M‐H, Random, 95% CI) 1.59 [0.68, 3.73]
1.3 Tailored interventions 1 231 Risk Ratio (M‐H, Random, 95% CI) 0.74 [0.44, 1.26]
2 Abstinence in late pregnancy: biochemically validated only 3 1082 Risk Ratio (M‐H, Random, 95% CI) 1.15 [0.70, 1.91]
2.1 Single interventions 1 653 Risk Ratio (M‐H, Random, 95% CI) 1.46 [0.88, 2.43]
2.2 Multiple interventions 1 198 Risk Ratio (M‐H, Random, 95% CI) 1.59 [0.68, 3.73]
2.3 Tailored interventions 1 231 Risk Ratio (M‐H, Random, 95% CI) 0.74 [0.44, 1.26]
3 Abstinence at 0 to 5 months postpartum 2   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
3.1 Single interventions 2 844 Risk Ratio (M‐H, Random, 95% CI) 1.55 [1.01, 2.36]
4 Mean cigarettes per day in late pregnancy 1 127 Mean Difference (IV, Random, 95% CI) ‐0.70 [‐3.37, 1.97]
4.1 Tailored interventions 1 127 Mean Difference (IV, Random, 95% CI) ‐0.70 [‐3.37, 1.97]
5 Low birthweight (< 2500 g) 1 620 Risk Ratio (M‐H, Random, 95% CI) 0.60 [0.28, 1.29]
5.1 Single interventions 1 620 Risk Ratio (M‐H, Random, 95% CI) 0.60 [0.28, 1.29]
6 Preterm births 1 618 Risk Ratio (M‐H, Random, 95% CI) 0.76 [0.32, 1.80]
6.1 Single interventions 1 618 Risk Ratio (M‐H, Random, 95% CI) 0.76 [0.32, 1.80]
7 Mean birthweight 1 620 Mean Difference (IV, Fixed, 95% CI) 71.0 [‐26.58, 168.58]
7.1 Single interventions 1 620 Mean Difference (IV, Fixed, 95% CI) 71.0 [‐26.58, 168.58]