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Financial incentives help pregnant women to quit smoking

Pregnant women are more likely to quit smoking if financial rewards are offered as part of a treatment plan, finds new research published in The BMJ.

Smoking in pregnancy is a leading preventable cause of maternal and neonatal illness and death in developed countries. In the UK alone, around 5000 fetuses and babies die from mothers each year. Current interventions are not particularly effective.

Smoking in pregnancy can cost the NHS up to £64 million for problems in mothers and up to £23.5 million for infants.

David Tappin at the University of Glasgow, Linda Bauld at the University of Stirling and colleagues assessed whether in the form of shopping vouchers can motivate pregnant women to quit smoking. In total, 612 pregnant smokers were randomly assigned to one of two groups.

Half were assigned to a group offered up to £400 of financial incentives if they engaged with ‘usual care’ services and/or quit smoking during pregnancy. The other half were offered usual care services that included a face to face appointment with a adviser, four follow-up support calls and free nicotine replacement therapy for 10 weeks.

Women who were offered shopping vouchers were significantly more likely to quit smoking than those in the control group. Overall, 69 women quit from the test group, and 26 from the control group – 23% and 9% respectively. This was confirmed by testing for cotinine (a nicotine breakdown product) in urine or saliva.

After 12 months, 15% of women who were offered financial incentives remained off cigarettes compared to only 4% in the control group.

No harmful effects were reported from the test group and there was no suggestion of “gaming”.

“This study provides substantial evidence of a very promising and potentially cost-effective new intervention to add to present health service support,” write the authors. “The findings can serve as the basis for future research to include other UK centres and other health care systems.”

The authors also add that there is potential for financial incentives to “sit with vaccines as an important preventative healthcare intervention strategy.” Stopping mothers from smoking has a ripple effect on the health of their children, and providing income to poor families can help to reduce inequalities, they explain.

Source

Financial incentives for smoking cessation in pregnancy: randomised controlled trial, David Tappin professor, Linda Bauld professor, David Purves research fellow , Kathleen Boyd lecturer, Lesley Sinclair trial manager, Susan MacAskill research fellow, Jennifer McKell research fellow, Brenda Friel health improvement senior, Alex McConnachie senior lecturer, Linda de Caestecker director of public health, Carol Tannahill director, Andrew Radley consultant in public health, Tim Coleman professor, for the Cessation in Pregnancy Incentives Trial (CPIT) Team, The BMJ, doi: 10.1136/bmj.h134, published 27 January 2015.