Cash Payment and Counseling During Pregnancy

Not Applicable

Recruiting

• Conditions: Incentives; Pregnancy Related; Smoking Cessation
• Interventions: Behavioral: Cash payment and brief behavioral counseling

• Registration Number: NCT04572178
• Lead Sponsor: University Medicine Greifswald

Brief Summary

Smoking during pregnancy has harmful effects on both mother and unborn child. Studies have shown that small rewards can help smokers to quit. In our current study, we ask how such rewards are most effective in supporting smoking cessation in pregnancy.

Detailed Description

We would like to include up to 15 pregnant women. Inclusion criteria are: (i) current pregnancy, between pregnancy week 15 and 23 and, (ii) current smoking of at least one cigarette per day. After an initial survey, the participating women are scheduled twice a week for counseling and evaluation of their smoking status.They will receive cash payment of 25 Euro if her carbon monoxide reading does not exceed the value "3", on two consecutive dates per week. A second survey will be conduced in pregnancy week 36 and a third survey, eight weeks postpartum.

Study Timeline

• Study Start: 2020-09-15
• Study First Submitted: 2020-09-25
• Study First Submitted QC: 2020-09-25
• Study First Posted: 2020-10-01
• Status Verified: 2023-11
• Last Update Submitted: 2023-11-29
• Last Update Posted: 2023-11-30
• Primary Completion: 2024-11-30
• Study Completion: 2024-11-30

Recruitment & Eligibility

• Status: RECRUITING
• Sex: Female
• Target Recruitment: 15

Inclusion Criteria

• Current smoking, at least one cigarette per day
• Pregnancy, between pregnancy week 15 and 23

Exclusion Criteria

• Inadequate language skills
• Cognitive impairment

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Cash payment and brief behavioral counseling	Cash payment and brief behavioral counseling	The intervention consists of in person counseling and cash payment. The participants receive 25 Euro per week if they have succeeded in quitting smoking. Quitting smoking is evaluated by carbon monoxide measurements twice a week.

Primary Outcome Measures

Name	Time	Method
Drop-out rate	Baseline up to pregnancy week 36	Measure: Analyses of drop-out rate (%)

Secondary Outcome Measures

Name	Time	Method
Attempts to stop smoking by carbon monoxide measurement	Baseline up to pregnancy week 36	Measure: Carbon monoxide level \<4 ppm (ppm= parts per million, device: piCObaby smokerlyzer)
Differences in number of cigarettes per day by self report	Baseline up to pregnancy week 36	Measure: (n), paper pencil assessment (self-report)
Attempts to stop smoking by self report	Baseline up to pregnancy week 36	Measure: (n), paper pencil assessment (self-report)

Trial Locations

Locations (1)

Institute for Comunity Medicine, Department Prevention Research and Social Medicine; 🇩🇪 Greifswald, Germany