Matuszewski 2018.

Methods	Study design: RCT Location: USA Setting: hospital Recruitment: inpatients with an operative fracture were enrolled from hospital
Participants	Defining eligibility criteria?: hospital inpatients with an operative fracture Participant characteristics: 237 smokers; sex: not reported; mean age: not reported; mean cpd: not reported; nicotine dependence: not reported Motivation to quit?: not selected on motivation
Interventions	Control: standard care: informational materials about smoking cessation, referred to the patient resource centre and provided with a quit‐line brochure Intervention 1: standard care + brief counselling + extended follow‐up: as control, plus 10 to 30 minutes of guided discussion about the risks and benefits of smoking for the healing of their traumatic injuries, plus smoking educator checked in with participants' progress for approximately 5 minutes at follow‐up appointments Intervention 2: standard care + brief counselling: as control, plus 10 to 30 minutes of guided discussion about the risks and benefits of smoking for the healing of their traumatic injuries. No additional 'check‐in' at follow‐up Provider: smoking cessation advisors Intensity: single 20 to 30‐minute face‐to‐face session. Intervention 1 also received 5‐minute check‐ins at 2 weeks, 6 weeks, 3 months and 6 months. Was MI fidelity monitored?: unclear
Outcomes	Definition of cessation used: 7‐day point prevalence Length of longest follow‐up: 6 months Validation: exhaled carbon monoxide (8 ppm) Was mental health and/or well‐being measured at follow‐up?: no Was quality of life measured at follow‐up?: no
Funding source	Not reported
Author conflicts of interest	Not reported
Notes	Completed trial, not published yet. Has been presented at 2018 Annual Meeting of the Orthopaedic Trauma Association in Kissimmee (Orlando), Florida, October 17‐20 2018. Unable to calculate numbers quit from abstract, contacted authors for quit rates, however did not receive all the information needed. Study discussed narratively
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Allocation: randomised. No further information
Allocation concealment (selection bias)	Unclear risk	Allocation: randomised. No further information
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Cessation was CO validated.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Dropout at 6 months not reported in conference abstract. Paper not yet published