SORA

Advancing, promoting and sharing knowledge of health through excellence in teaching, clinical practice and research into the prevention and treatment of illness

Effect of 3 months and 12 months of financial incentives on 12-month postpartum smoking cessation maintenance: A randomized controlled trial

Ussher, MH; Best, C; Lewis, S; McKell, J; Coleman, T; Cooper, S; Orton, S; Bauld, L (2024) Effect of 3 months and 12 months of financial incentives on 12-month postpartum smoking cessation maintenance: A randomized controlled trial. Addiction, 119 (8). pp. 1352-1363. ISSN 0965-2140 https://doi.org/10.1111/add.16487
SGUL Authors: Ussher, Michael Henry

[img]
Preview
PDF Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview
[img]
Preview
PDF (Data S1) Supplemental Material
Download (1MB) | Preview
[img] Microsoft Word (.docx) (Data S2) Supplemental Material
Download (28kB)
[img] Microsoft Word (.docx) (Data S3) Supplemental Material
Download (29kB)
[img] Microsoft Word (.docx) (Data S4) Supplemental Material
Download (48kB)
[img] Microsoft Word (.docx) Accepted Version
Available under License Creative Commons Attribution.

Download (173kB)

Abstract

Background and aims Offering financial incentives is effective for smoking cessation during pregnancy. We tested the effectiveness of financial incentives for maintaining postpartum cessation, comparing 12-month and 3-month incentives with each other and with usual care (UC). Design, setting and participants This study was a pragmatic, multi-centre, three-arm randomized controlled trial involving four English, National Health Service, stop smoking services. A total of 462 postpartum women (aged ≥ 16 years) took part, who stopped smoking during pregnancy with financial incentives, validated as abstinent from smoking at end of pregnancy or early postpartum. Interventions Interventions comprised (i) UC; (ii) UC plus up to £60 of financial voucher incentives offered to participants and £60 offered to an optional significant-other supporter, over 3 months postpartum, contingent upon validated abstinence (‘3-month incentives’); or (iii) UC plus ‘3-month incentives’ plus £180 of vouchers offered to participants over 9 months postpartum, contingent upon abstinence (‘12-month incentives’). Measurements Primary outcome: biochemically validated abstinence at 1 year postpartum. To adjust for testing all comparisons between groups with equal precision, P < 0.017 was necessary for significance. Secondary outcomes: self-reported and validated abstinence at 3 months postpartum; self-reported abstinence at 1 year postpartum. Findings Primary outcome ascertainment: abstinence was 39.6% (63/159) 12 months incentives, 21.4% (33/154) 3 months incentives and 28.2% (42/149) UC. Adjusted odds ratios [95% confidence interval (CI)] = 12-month versus 3-month incentives OR = 2.41 (95% CI = 1.46−3.96), P = 0.001; 12 months versus UC 1.67 (1.04−2.70), P = 0.035; 3 months versus UC 0.69 (0.41−1.17), P = 0.174. Bayes factors indicated that for 12-month versus 3-month incentives and 12 months versus UC there was good evidence for the alternative hypothesis, and for 3 months versus UC there was good evidence for the null hypothesis. Conclusions This randomized controlled trial provides weak evidence that up to £300 of voucher incentives over 12 months is effective for maintaining smoking abstinence postpartum compared with usual care. There was good evidence that 12-month incentives are superior to those over only 3 months, for which there was no evidence of effectiveness relative to usual care.

Item Type: Article
Additional Information: © 2024 The Authors. Addiction published by John Wiley & Sons Ltd on behalf of Society for the Study of Addiction. This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Keywords: 11 Medical and Health Sciences, 17 Psychology and Cognitive Sciences, Substance Abuse
SGUL Research Institute / Research Centre: Academic Structure > Population Health Research Institute (INPH)
Journal or Publication Title: Addiction
ISSN: 0965-2140
Dates:
DateEvent
2 July 2024Published
16 April 2024Published Online
22 February 2024Accepted
Publisher License: Creative Commons: Attribution 4.0
Projects:
Project IDFunderFunder ID
UNSPECIFIEDGreater Manchester Combined AuthorityUNSPECIFIED
URI: https://openaccess.sgul.ac.uk/id/eprint/116288
Publisher's version: https://doi.org/10.1111/add.16487

Actions (login required)

Edit Item Edit Item