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Addiction. 2017 Jul;112(7):1238-1249. doi: 10.1111/add.13802. Epub 2017 May 2.

Large multi-centre pilot randomized controlled trial testing a low-cost, tailored, self-help smoking cessation text message intervention for pregnant smokers (MiQuit).

Author information

1
School of Health Sciences, University of East Anglia, Norwich, UK.
2
UK Centre for Tobacco and Alcohol Studies, University of Nottingham, Nottingham, UK.
3
Division of Primary Care, University of Nottingham, Nottingham, UK.
4
Behavioural Science Group, University of Cambridge, Cambridge, UK.
5
Division of Epidemiology and Public Health, University of Nottingham, Nottingham, UK.
6
Population Health Research Institute, St George's University of London, London, UK.
7
Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, UK.
8
Department of Health Sciences, University of York, York, UK.

Abstract

AIMS:

To estimate the effectiveness of pregnancy smoking cessation support delivered by short message service (SMS) text message and key parameters needed to plan a definitive trial.

DESIGN:

Multi-centre, parallel-group, single-blinded, individual randomized controlled trial.

SETTING:

Sixteen antenatal clinics in England.

PARTICIPANTS:

Four hundred and seven participants were randomized to the intervention (n = 203) or usual care (n = 204). Eligible women were < 25 weeks gestation, smoked at least one daily cigarette (> 5 pre-pregnancy), were able to receive and understand English SMS texts and were not already using text-based cessation support.

INTERVENTION:

All participants received a smoking cessation leaflet; intervention participants also received a 12-week programme of individually tailored, automated, interactive, self-help smoking cessation text messages (MiQuit).

OUTCOME MEASUREMENTS:

Seven smoking outcomes, including validated continuous abstinence from 4 weeks post-randomization until 36 weeks gestation, design parameters for a future trial and cost-per-quitter.

FINDINGS:

Using the validated, continuous abstinence outcome, 5.4% (11 of 203) of MiQuit participants were abstinent versus 2.0% (four of 204) of usual care participants [odds ratio (OR) = 2.7, 95% confidence interval (CI) = 0.93-9.35]. The Bayes factor for this outcome was 2.23. Completeness of follow-up at 36 weeks gestation was similar in both groups; provision of self-report smoking data was 64% (MiQuit) and 65% (usual care) and abstinence validation rates were 56% (MiQuit) and 61% (usual care). The incremental cost-per-quitter was £133.53 (95% CI = -£395.78 to 843.62).

CONCLUSIONS:

There was some evidence, although not conclusive, that a text-messaging programme may increase cessation rates in pregnant smokers when provided alongside routine NHS cessation care.

KEYWORDS:

SMS text messaging; mHealth; pregnancy; randomized controlled trial; self-help; smoking cessation

PMID:
28239919
PMCID:
PMC5488183
DOI:
10.1111/add.13802
[Indexed for MEDLINE]
Free PMC Article

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