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Effects of a text messaging smoking cessation intervention among online help seekers and primary healthcare visitors in Sweden

Effects of a text messaging smoking cessation intervention among online help seekers and primary healthcare visitors in Sweden: a randomized controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN13455271
Enrollment
1000
Registered
2020-07-27
Start date
2020-10-01
Completion date
Unknown
Last updated
2026-08-10

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

Conditions

Smoking cessation Other

Interventions

Allocation will be done according to a computer-generated random sequence. Participants will prior to randomization be stratified according to which of the two versions of the intervention is appropri

Sponsors

Linköping University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 100 Years

Inclusion criteria

Inclusion criteria: Smokers aged 18 years or older

Exclusion criteria

Exclusion criteria: Non-smokers or aged less than 18 years

Design outcomes

Primary

MeasureTime frame
1. Prolonged abstinence measured using a questionnaire at 3 and 6 months, following the Russell standard definition of not having smoked more than 5 cigarettes in the past 8 weeks (thus allowing for a 4-week grace period). The abstinence period will be adjusted to 5 at the 6-month follow-up. 2. Point prevalence of smoking abstinence measured using a questionnaire at 3 and 6 months, defined as not smoking any cigarette the past 4 weeks, as recommended by the Society for Research on Nicotine and Tobacco.

Secondary

MeasureTime frame
1. Seven-day point prevalence of complete smoking abstinence, measured using a questionnaire at 3 and 6 months 2. Number of cigarettes smoked weekly (if still smoking), measured using a questionnaire at 3 and 6 months 3. Number of quit attempts since baseline, measured using a questionnaire at 3 and 6 months 4. Number of uses of other smoking-cessation aids since baseline, measured using a questionnaire at 3 and 6 months

Countries

Sweden

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Aug 25, 2026