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BMJ. 2005 Aug 13;331(7513):373-7.

Randomised controlled trial of home based motivational interviewing by midwives to help pregnant smokers quit or cut down.

Author information

1
Paediatric Epidemiology and Community Health Unit, Department of Child Health, Division of Developmental Medicine, University of Glasgow, Yorkhill, Glasgow G3 8SJ. goda11@udcf.gla.ac.uk

Abstract

OBJECTIVE:

To determine whether motivational interviewing--a behavioural therapy for addictions-provided at home by specially trained midwives helps pregnant smokers to quit.

DESIGN:

Randomised controlled non-blinded trial analysed by intention to treat.

SETTING:

Clinics attached to two maternity hospitals in Glasgow.

PARTICIPANTS:

762/1684 pregnant women who were regular smokers at antenatal booking: 351 in intervention group and 411 in control group.

INTERVENTIONS:

All women received standard health promotion information. Women in the intervention group were offered motivational interviewing at home. All interviews were recorded.

MAIN OUTCOME MEASURES:

Self reported smoking cessation verified by plasma or salivary cotinine concentration.

RESULTS:

17/351 (4.8%) women in the intervention group stopped smoking (according to self report and serum cotinine concentration < 13.7 ng/ml) compared with 19/411(4.6%) in the control group. Fifteen (4.2%) women in the intervention group cut down (self report and cotinine concentration less than half that at booking) compared with 26 (6.3%) in the control group. Fewer women in the intervention group reported smoking more (18 (5.1%) v 44 (10.7%); relative risk 0.48, 95% confidence interval 0.28 to 0.81). Birth weight did not differ significantly (mean 3078 g v 3048 g).

CONCLUSION:

Good quality motivational interviewing did not significantly increase smoking cessation among pregnant women.

PMID:
16096304
PMCID:
PMC1184246
DOI:
10.1136/bmj.331.7513.373
[Indexed for MEDLINE]
Free PMC Article
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