| Study | Reason for exclusion |
|---|---|
| Arborelius 2001 | Longitudinal study |
| Bacewicz 2015 | Wrong study design (no control group) |
| Badger 2003 | Conference abstract only. Trial authors contacted and no further study information provided. |
| Burmaz 2007 | Minimal data on smoking at either baseline or follow‐up, as smoking only a very small component of the intervention. |
| Campion 1994 | Outcomes assessed by 2 surveys carried out before and after the campaign. This study targeted pregnant women. |
| Carlsson 2013 | Wrong study design (no control group) |
| Chamberlain 2013 | Wrong study design |
| Cookson 2000 | Before‐and‐after study |
| Eakin 2013 | Abstract only; full paper included |
| Emmons 2000 | Quasi‐experimental historical comparison design. |
| Gadomski 2011 | Uncontrolled study; no outcome data for control; only 3 versions of the intervention |
| Halterman 2011a | Conference presentation only |
| Hovell 2011 | Intervention aimed at preteens themselves, not at families or carers |
| Huang 2013 | Wrong outcomes |
| Hutchinson 2014 | Abstract only |
| Kegler 2012 | Pre‐post study; not a controlled study |
| Klinnert 2007 | Does not include outcome data related to ETS. |
| Lepore 2013 | Study protocol only |
| Loke 2005 | Intervention targeted pregnant women and their non‐smoking spouses during the perinatal period only. |
| Manfredi 1999 | This study targeted predominantly women, some of whom were mothers. |
| Meltzer 1993 | Multiple‐baseline, quasi‐experimental design |
| Morgan 2004 | Does not include outcome data related to ETS. |
| Murray 1993 | Longitudinal study |
| Oien 2008 | Study objective to assess the impact of an intervention on parental smoking during pregnancy. |
| Okah 2003 | Secondary analysis of an RCT of bupropion for smoking cessation |
| Philips 1990 | Met main inclusion criteria, but the outcome measure was the report by kindergarten students of their intent to avoid cigarette smoke (by leaving the room themselves or asking an adult smoker to stop smoking). This outcome measure is believed by trial authors to be too unreliable for inclusion of this study. |
| Sockrider 2003 | No ETS results published; this was an ongoing study from 2003 in the previous version of this Cochrane review (Baxi 2014); email contact with trial authors, no response. |
| Spencer 2000 | Pilot study only. No further results available. |
| Stepans 2006 | Pilot study only |
| Stotts 2013b | Study protocol only; full paper included |
| Tingen 2016 | Abstract only |
| Turner‐Henson 2005 | Intervention not described |
| Walley 2015 | Wrong study design (no control group) |
| Williams 2016 | Wrong patient population |
| Wilson 1996 | Baseline results only |
| Wilson 2005 | This ongoing study from 2005 was included in the previous version of this Cochrane Review (Baxi 2014); email contact with trial authors; no response |
| Winickoff 2013 | Outcome data related to ETS not included, but data related to implementation of an intervention provided |
ETS: environmental tobacco smoke. RCT: randomised controlled trial.