Skip to main content

Table 1 Univariable meta-regression of NRT studies

From: Effectiveness of smoking cessation therapies: a systematic review and meta-analysis

Covariates Point estimate Lower 95% limit Upper 95% limit OR Lower 95% limit Upper 95% limit p-value
Placebo 0.13 -0.03 0.31 1.13 0.97 1.36 0.12
Sequence generation -0.15 -0.32 0.006 0.86 0.72 1.00 0.06
Allocation concealment -0.20 -0.39 0.01 0.81 0.67 1.01 0.03
Gum -0.18 -0.32 -0.02 0.83 0.72 0.98 0.02
Patch 0.0007 -0.15 0.16 1.00 0.86 1.17 0.99
CO 0.52 0.24 0.80 1.68 1.27 2.22 0.0002
Cotinine -0.21 -0.37 -0.05 0.81 0.69 0.95 0.007
Serum -0.36 -0.75 0.01 0.69 0.47 1.01 0.06
Urine -0.36 -0.70 -0.02 0.69 0.49 0.98 0.03
Planned to quit 0.12 -0.02 0.27 1.12 0.98 1.30 0.10
  1. Legend. The point estimate and 95% CIs estimate the unit change in the effect size, whenever the predicted covariate is present. The OR for the point estimates and 95% CI denote the likelihood of covariate affecting the trial effect size.
\