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Pilot trial of the impact of financial incentives on women quitting smoking in pregnancy.

Investigating the Feasibility and Acceptability of Financial Incentives to Encourage Smoking Cessation in Pregnancy: A Non-randomised Pilot Trial

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12621000676819
Enrollment
12
Registered
2021-06-03
Start date
2022-11-08
Completion date
2023-09-27
Last updated
2025-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Smoking throughout pregnancy causes irreversible harm to both the mother and fetus. Although smoking rates have declined considerably, rates of smoking during pregnancy remain steady among socioeconomically disadvantaged populations. The Northern Area Local Health Network (NALHN) serves a substantially disadvantaged population with approximately 1 in 4 women smoking during pregnancy. Standard practice at NALHN is to refer women to the Quitline, yet it is widely acknowledged by women and health professionals that women rarely engage with the service (Fletcher et al. 2021, unpublished). Studies exploring the use of financial incentives in antenatal care to encourage smoking cessation have shown promising results. This project will explore the feasibility and acceptability of using financial incentives in antenatal care at the NALHN antenatal services

Interventions

Pilot trial using financial incentives to help women quit smoking in pregnancy Financial incentives Women who smoke in pregnancy will be offered a financial incentive ($100) to quit smoking by 4 weeks. If eligible, women will be invited to meet face-to-face with a midwifery-trained researcher for 30 minutes to qualitatively discuss being offered a financial incentive to quit smoking using a semi-structured interview schedule. This meeting will occur in the hospital where antenatal care is provi

Pilot trial using financial incentives to help women quit smoking in pregnancy Financial incentives Women who smoke in pregnancy will be offered a financial incentive ($100) to quit smoking by 4 weeks. If eligible, women will be invited to meet face-to-face with a midwifery-trained researcher for 30 minutes to qualitatively discuss being offered a financial incentive to quit smoking using a semi-structured interview schedule. This meeting will occur in the hospital where antenatal care is provided. Women will then be asked to use a calibrated CO monitor (PiCO Baby Smokerlyzer) to confirm they are a smoker and provide a baseline CO reading. The researcher will then discuss with participants and provide verbal and written information on supports available to women, which includes participants being given a study-specific brochure. There will be two forms of written information provided. The first refers to mental health services available to women at the hospital and in the community. The second refers to smoking cessation strategies and supports available to pregnant women. Four weeks later at a follow up antenatal appointment, researchers will meet with participants again. Women will meet face-to-face with a trained researcher on the project for 30 minutes at the hospital where antenatal care is provided, community centre or the participants home to qualitatively discuss their experience of being offered a financial incentive to quit using a semi-structured interview schedule. A breath sample will be collected using the CO monitor. If the CO reading for a participant is 4ppm or less, the participant will receive a $100 gift voucher for successfully quitting. If the CO reading for a participant is 5ppm or above, then the participant will receive a $50 gift voucher for their contributions to the trial.

Sponsors

University of Adelaide
Lead SponsorUniversity

Study design

Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Prevention
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

• Women who are currently pregnant (gestation<35 weeks) and smoke tobacco • Aged 18 years or over • Communicate in English without difficulty • Receiving antenatal care from health professionals at the Northern Adelaide Local Health Network (NAHLN) • Willing and able to give informed consent for participation in the study

Exclusion criteria

Any pregnant woman who does not smoke tobacco or who quit smoking in pregnancy prior to meeting the researcher in the antenatal clinic

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026