1. Summary of control and intervention characteristics.
| Intervention | Control | ||||||
| Study ID | Pharmacotherapy |
Modality (included face‐to‐face/ telephone only) |
Number of contacts | Total duration (minutes) | Number of contacts | Total duration (minutes) | Comments |
| Ahluwalia 2006 | NRT | Face‐to‐face | 6 | 120 | 6 | 120 | |
| Aimer 2017 | NRT | Face‐to‐face | 4 | Unclear | Unclear | Unclear | |
| Alterman 2001 | NRT | Face‐to‐face | 16 | 4290 | 1 | 30 | Multiple arms ‐ highest vs lowest intensity |
| Aveyard 2007 | NRT | Face‐to‐face | 7 | 140 | 4 | 80 | |
| Bailey 2013 | NRT | Face‐to‐face | 19 | 950 | 10 | 500 | |
| Baker 2015 | NRT | Face‐to‐face | 17 | 1050 | 17 | 290 | |
| Bastian 2012 | NRT | Telephone | 5 | 100 | 5 | 100 | |
| Begh 2015 | NRT | Face‐to‐face | 7 | 112 | 7 | 112 | |
| Berndt 2014 | NRT | Face‐to‐face | 7 | 285 | 7 | 105 | |
| Bloom 2017 | NRT | Face‐to‐face | 20 | 400 | 20 | 880 | Exercise sessions/time excluded |
| Bock 2014 | NRT | Face‐to‐face | 3 | Unclear | 1 | Unclear | |
| Boyle 2007 | Choice | Face‐to‐face | 9 | Unclear | 0 | 0 | |
| Bricker 2014 | NRT | Telephone | 5 | 90 | 5 | 90 | |
| Brody 2017 | NRT & Bupropion | Face‐to‐face | 22 | 970 | 12 | 720 | |
| Brown 2013 | NRT | Face‐to‐face | Unclear | Unclear | Unclear | Unclear | |
| Busch 2017 | NRT | Face‐to‐face | 6 | 220 | 6 | 87.5 | |
| Bushnell 1997 | NRT | Face‐to‐face | 8 | 480 | 4 | 240 | |
| Calabro 2012 | NRT | Face‐to‐face | 2 | 120 | 1 | 5 | Intervention also had "access to 5 web‐based booster sessions" |
| Cook 2016 | NRT | Face‐to‐face | 11 | 130 | 0 | 0 | Multifactorial ‐ highest vs lowest intensity |
| Cropsey 2015 | NRT | Face‐to‐face | 4 | 100 | 1 | Unclear | |
| Ellerbeck 2009 | Choice | Face‐to‐face | 6 | Unclear | 0 | 0 | Multiple arms ‐ highest vs lowest intensity |
| Ferguson 2012 | NRT | Telephone | 6 | Unclear | Unclear | Unclear | |
| Fiore 2004 | NRT | Face‐to‐face | 5 | Unclear | 0 | 0 | Multiple arms ‐ highest vs lowest intensity |
| Gariti 2009 | Choice | Face‐to‐face | 10 | 125 | 4 | 30 | |
| Gifford 2011 | Bupropion | Face‐to‐face | 20 | Unclear | 1 | 60 | |
| Ginsberg 1992 | NRT | Face‐to‐face | 5 | Unclear | 2 | Unclear | |
| Hall 1985 | NRT | Face‐to‐face | 14 | 1050 | 4 | Unclear | |
| Hall 1987 | NRT | Face‐to‐face | 14 | 1050 | 5 | 300 | |
| Hall 1994 | NRT | Face‐to‐face | 10 | 1200 | 5 | 450 | |
| Hall 1998 | Nortriptyline | Face‐to‐face | 10 | 1200 | 5 | 450 | |
| Hall 2002 | Bupropion/Nortriptyline | Face‐to‐face | 5 | 450 | 4 | 30 | |
| Hall 2009 | NRT & Bupropion | Face‐to‐face | 11 | 330 | 5 | Unclear | Multifactorial study design |
| Hasan 2014 | NRT | Face‐to‐face | 7 | 195 | 6 | 105 | |
| Hollis 2007 | NRT | Telephone | 4 | 100 | 1 | 15 | Multiple arms ‐ highest vs lowest intensity |
| Huber 2003 | NRT | Face‐to‐face | 5 | 450 | 5 | 225 | |
| Humfleet 2013 | NRT | Face‐to‐face | 6 | 300 | 1 | 'Brief' | Multiple arms ‐ highest vs lowest intensity |
| Jorenby 1995 | NRT | Face‐to‐face | 8 | 480 | 0 | 0 | Multiple arms ‐ highest vs lowest intensity |
| Kahler 2015 | NRT | Face‐to‐face | 6 | 210 | 6 | 210 | |
| Killen 2008 | NRT & Bupropion | Face‐to‐face | 10 | 300 | 10 | 200 | |
| Kim 2015 | NRT | Face‐to‐face | 8 | 320 | 8 | 80 | |
| LaChance 2015 | NRT | Face‐to‐face | 7 | 420 | 7 | 420 | |
| Lando 1997 | NRT | Face‐to‐face | 4 | 48 | 0 | 0 | Multiple arms ‐ highest vs lowest intensity |
| Lifrak 1997 | NRT | Face‐to‐face | 20 | 736.5 | 4 | 82.5 | |
| Lloyd‐Richardson 2009 | NRT | Face‐to‐face | 5 | Unclear | 2 | Unclear | |
| MacLeod 2003 | NRT | Telephone | 5 | 60 | 0 | 0 | |
| Macpherson 2010a | NRT | Face‐to‐face | 8 | 480 | 8 | 480 | |
| Matthews 2018 | NRT | Face‐to‐face | 6 | 540 | 6 | 540 | |
| McCarthy 2008 | Bupropion | Face‐to‐face | 13 | Unclear | 13 | Unclear | Control received 80 minutes less contact than intervention |
| NCT00879177 | NRT & Varenicline | Face‐to‐face | 9 | Unclear | 5 | Unclear | |
| Ockene 1991 | NRT | Face‐to‐face | 5 | 45 | 2 | 15 | |
| O'Cleirigh 2018 | NRT | Face‐to‐face | 10 | 600 | 5 | 100 | |
| Okuyemi 2013 | NRT | Face‐to‐face | 6 | 105 | 1 | 12.5 | |
| Otero 2006 | NRT | Face‐to‐face | 4 | 240 | 1 | 20 | Multiple arms ‐ highest vs lowest intensity |
| Patten 2017 | NRT | Face‐to‐face | 36 | 1080 | 36 | 1080 | Intervention group: "exercise counselling delivered while the participant was engaged in exercise" ‐ have left this time in as also counselling |
| Prapavessis 2016 | NRT | Face‐to‐face | 64 | 1985 | 59 | 1860 | Multiple arms ‐ highest vs lowest intensity |
| Reid 1999 | NRT | Face‐to‐face | 6 | Unclear | 3 | 45 | |
| Rohsenow 2014 | NRT | Face‐to‐face | 3 | 65 | 3 | 35 | |
| Rovina 2009 | Bupropion | Face‐to‐face | 9 | 540 | 1 | 15 | Multiple arms ‐ highest vs lowest intensity |
| Schlam 2016 | NRT | Face‐to‐face | 12 | 320 | 4 | 200 | Multifactorial study design |
| Schmitz 2007a | Bupropion | Face‐to‐face | 7 | 420 | 7 | 420 | |
| Simon 2003 | NRT | Face‐to‐face | 6 | 195 | 1 | 10 | |
| Smith 2001 | NRT | Face‐to‐face | 6 | 90 | 0 | 0 | Multiple arms ‐ highest vs lowest intensity |
| Smith 2013a | NRT | Telephone | 4 | 67 | 4 | 60 | Exact duration of contact not recorded, but averages given, intervention: 67.0 (± 25.8), control: 60.1 (± 23.9) |
| Smith 2014 | Varenicline | Face‐to‐face | 5 | Unclear | 5 | Unclear | Comparing culturally‐tailored with standard counselling ‐ duration of sessions not stated |
| Solomon 2000 | NRT | Telephone | See note | See note | 0 | 0 | Control = "access to quitline"; intervention = "up to 12 calls" ‐ averaged 7 calls at 9 minutes each |
| Solomon 2005 | NRT | Telephone | 8.2 | 80 | 0 | 0 | Intervention numbers based on average number/duration of calls |
| Stanton 2015 | NRT | Face‐to‐face | 7 | Unclear | 3 | Unclear | |
| Stein 2006 | NRT | Face‐to‐face | 3 | 65 | 2 | 5 | Control offered "up to 2 visits", intervention only offered 3rd visit if ready to quit |
| Strong 2009 | Bupropion | Face‐to‐face | 12 | 1440 | 12 | 1440 | |
| Swan 2003 | Bupropion | Telephone | 4 | Unclear | 1 | 7.5 | Multiple arms ‐ highest vs lowest intensity |
| Swan 2010 | Varenicline | Telephone | 5 | 67 | 0 | 0 | |
| Tonnesen 2006 | NRT | Face‐to‐face | 12 | 270 | 10 | 150 | |
| Van Rossem 2017 | Varenicline | Face‐to‐face | 10 | 120 | 1 | 20 | Duration of sessions not stipulated, but maximum amounts recorded in paper. Intervention: 120, control: 20 |
| Vander Weg 2016 | Choice | Telephone | 6 | 150 | 0 | 0 | Intervention sessions listed as 20 to 30 minutes ‐ control was referral to a quitline, but there were no mandated sessions, so contact listed as 0 |
| Vidrine 2016 (CBT) | NRT | Face‐to‐face | 8 | 960 | 4 | 40 | Vidrine study intervention 2 (control split) |
| Vidrine 2016 (MBAT) | NRT | Face‐to‐face | 8 | 960 | 4 | 40 | Vidrine study intervention 1 (control split) |
| Wagner 2016 | NRT | Face‐to‐face | 12 | Unclear | 12 | Unclear | Sessions' duration not reported |
| Warner 2016 | NRT | Face‐to‐face | 1 | 5 | 1 | 5 | |
| Webb Hooper 2017 | NRT | Face‐to‐face | 9 | 945 | 9 | 945 | Exact duration not listed, but approximate range given |
| Wewers 2017 | NRT | Face‐to‐face | 7 | 210 | 6 | 180 | Compared 2 interventions, less intensive counted as control |
| Wiggers 2006 | NRT | Face‐to‐face | 3 | Unclear | 1 | Unclear | |
| Williams 2010 | NRT | Face‐to‐face | 24 | 1080 | 9 | 180 | |
| Wu 2009 | NRT | Face‐to‐face | 4 | 240 | 4 | 240 | |
| Yalcin 2014 | Choice | Face‐to‐face | 14 | 730 | 9 | 150 | |