1. Effect of a workplace-based group training programme combined with financial incentives on smoking cessation: a cluster-randomised controlled trial 
Floor A van den Brand, MSc, Gera E Nagelhout, PhD, Bjorn Winkens, PhD, Prof Niels H Chavannes, PhD, Prof Onno C P van Schayck, PhD 
The Lancet Public Health 
Volume 3, Issue 11, Pages e536-e544 (November 2018)
DOI: /S (18)
Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license Terms and Conditions

2. Figure 1
Trial profile
The Lancet Public Health 2018 3, e536-e544DOI: ( /S (18) )
Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license Terms and Conditions

3. Figure 2
Validated smoking abstinence in the intervention vs control groups
Figure shows histogram of modified intention-to-treat analysis with multiple imputation, adjusted for education level, income level, and Fagerström score, with percentages of validated abstinence in the intervention (smoking cessation programme plus financial incentive) and control (smoking cessation programme only) groups directly after the smoking cessation training programme, at 3 months, 6 months, and 12 months. Δ=risk difference.
The Lancet Public Health 2018 3, e536-e544DOI: ( /S (18) )
Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license Terms and Conditions