Chellini 2013.

Methods	Country: Italy Setting: well‐child, in the community RCT
Participants	218 women 30 to 49 years of age with children
Interventions	Brief counselling and 3 gifts. Both groups received self‐help booklet.
Outcomes	Reported smoking restrictions in home and car Change in smoking status reported
Type of intervention	Well‐child (child health check)
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Random number table used
Allocation concealment (selection bias)	Unclear risk	Not stated
Incomplete outcome data (attrition bias) All outcomes	Low risk	12 of 218 lost to follow‐up and ITT analysis performed
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not discussed for observer; objective measure not used