Fig 1.
Flow of information through the different phases of the systematic review.
Table 1.
Sumarry of the studies results.
Fig 2.
The risk of suicide ideation among current smokers versus nonsmokers.
Squares and the horizontal lines represent the measures of effect, e.g. odds ratio or relative risk, and associated confidence intervals for each of the studies and the diamond indicates the summary measure.
Fig 3.
The risk of suicide plan among current smokers versus nonsmokers.
Squares and the horizontal lines represent the measures of effect, e.g. odds ratio or relative risk, and associated confidence intervals for each of the studies and the diamond indicates the summary measure.
Fig 4.
The risk of suicide attempt among current smokers versus nonsmokers.
Squares and the horizontal lines represent the measures of effect, e.g. odds ratio or relative risk, and associated confidence intervals for each of the studies and the diamond indicates the summary measure.
Fig 5.
The risk of suicide death among current smokers versus nonsmokers.
Squares and the horizontal lines represent the measures of effect, e.g. odds ratio or relative risk, and associated confidence intervals for each of the studies and the diamond indicates the summary measure.
Fig 6.
Trim and Fill analysis estimating the number possible missing studies for the association between smoking and suicide ideation.
The squares represent the possible missing studies.
Table 2.
The association between current smoking on suicidal behaviors by the quality of the studies.