Trial reportSubstance abuse treatment, prevention, and policy2026
Investigating if changing the wording of a study invitation letter increased recruitment in a project promoting tobacco cessation in a town with high smoking rates.
Trial report in Substance abuse treatment, prevention, and policy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04534231 (Offering Nicotine Patches to All Households in a Municipality With High Smoking Rates), which is not on this map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Offering Nicotine Patches to All Households in a Municipality With High Smoking Rates: Test of an Idea to Promote Large Increases in Tobacco Cessation
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
backgroundInvitation letters can be the first point of contact between research staff and potential participants and a number of modifiable variables have been studied to improve their effectiveness. The aim of this analysis was to determine if lower reading levels and “gain-framed” messages improved recruitment for a RCT that mailed nicotine replacement therapy (NRT) patches for smoking cessation.
methodsInvitation letters were created which varied in a two-by-two design by reading level and message framing. The letters were randomly mailed to all households in a community selected to receive targeted distribution of NRT patches.
resultsThere were no significant differences found in the number of participants enrolled.
conclusionFuture research investigating factors to improve invitation letters is merited despite current project limitations.
trial registrationClinicalTrials.gov NCT04534231.
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