Trial · NCT04311983
Interventions to Help More Low-income Smokers Quit
NCT04311983, Not applicable, Completed, Washington University School of Medicine; results first posted 2024-10-10
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Interventions to Help More Low-income Smokers Quit. Trials, record NCT04311983. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04311983
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Interventions to Help More Low-income Smokers Quit
- NCT number
- NCT04311983
- Status
- Completed
- Phases
- Not applicable
- Enrollment
- 1,973 participants, actual
- Lead sponsor
- Washington University School of Medicine
- Conditions
- Tobacco Use Cessation, Smoking Behaviors, Health Disparity
- Interventions
- Tobacco Quitline, Smoke Free Home
- First posted
- 2020-03-17
- Last updated
- 2024-10-10
- Results first posted
- 2024-10-10
Source ClinicalTrials.gov
Registered outcomes2
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | 7day Point Prevalence for Smoking | 6 month follow-up | Percentage of participants who have 7 day smoking abstinence |
| Secondary | Proportion of Participants Who Accept the Tobacco Quitline Program | Baseline and 3-month follow-up | * All participants are asked at baseline if they are interested in trying the \<STATE\> tobacco quitline. Some participants are asked this question again at the 3-month follow-up * The probability is the proportion who answer "yes". * Due to our study design, at 3-month follow-up, Tobacco Quitline plus Smoke Free Homes participants were only offered the Quitline if they had not chosen it at baseline. The proportion in the table is the number of participants who accepted the Quitline divided by number who were offered the Quitline. |
Source ClinicalTrials.gov
Outcomes2
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
| Type | Outcome | Time frame | Population | Units | Measured as |
|---|---|---|---|---|---|
| PRIMARY | 7day Point Prevalence for Smoking | 6 month follow-up | Participants were not included if they were lost to follow-up or were duplicate enrollees. | Participants | COUNT_OF_PARTICIPANTS |
| SECONDARY | Proportion of Participants Who Accept the Tobacco Quitline Program | Baseline and 3-month follow-up | At baseline, participants weren't included if they were duplicate entries. At 3-month follow-up, participants weren't included if they were duplicated entries or if they were lost to follow-up. Also, in Arm 2 at 3-month follow-up, if participants had chosen the quitline at baseline and did not quit, they were not re-offered the quitline; they were only offered Smoke-Free Homes. This was a planned part of the study design. | Participants | COUNT_OF_PARTICIPANTS |
Source ClinicalTrials.gov
Results by group6
Each measurement the trial posted, group by group, in the words and numbers it posted.
| Outcome | Group | Category | Value | Spread | Units |
|---|---|---|---|---|---|
| 7day Point Prevalence for Smoking | Tobacco Quitline Only | 78 | Participants | ||
| 7day Point Prevalence for Smoking | Tobacco Quitline Plus Smoke Free Homes | 83 | Participants | ||
| Proportion of Participants Who Accept the Tobacco Quitline Program | Tobacco Quitline Only | Baseline | 592 | Participants | |
| Proportion of Participants Who Accept the Tobacco Quitline Program | Tobacco Quitline Plus Smoke Free Homes | Baseline | 587 | Participants | |
| Proportion of Participants Who Accept the Tobacco Quitline Program | Tobacco Quitline Only | 3-month follow-up | 385 | Participants | |
| Proportion of Participants Who Accept the Tobacco Quitline Program | Tobacco Quitline Plus Smoke Free Homes | 3-month follow-up | 142 | Participants |
Source ClinicalTrials.gov
Participant flow6
How many started, completed or left each group, period by period.
| Period | Milestone | Group | Participants | Units counted |
|---|---|---|---|---|
| Overall Study | STARTED | Tobacco Quitline Only | 987 | |
| Overall Study | STARTED | Tobacco Quitline Plus Smoke Free Homes | 986 | |
| Overall Study | COMPLETED | Tobacco Quitline Only | 558 | |
| Overall Study | COMPLETED | Tobacco Quitline Plus Smoke Free Homes | 521 | |
| Overall Study | NOT COMPLETED | Tobacco Quitline Only | 429 | |
| Overall Study | NOT COMPLETED | Tobacco Quitline Plus Smoke Free Homes | 465 |
Source ClinicalTrials.gov
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals6
The totals the trial posted for each group.
| Total | Group | Affected | At risk |
|---|---|---|---|
| Total, all-cause mortality | Tobacco Quitline Only | 1 | 987 |
| Total, all-cause mortality | Tobacco Quitline Plus Smoke Free Homes | 0 | 986 |
| Total, other adverse events | Tobacco Quitline Only | 0 | 987 |
| Total, other adverse events | Tobacco Quitline Plus Smoke Free Homes | 0 | 986 |
| Total, serious adverse events | Tobacco Quitline Only | 0 | 987 |
| Total, serious adverse events | Tobacco Quitline Plus Smoke Free Homes | 0 | 986 |
Source ClinicalTrials.gov
Papers2
The papers the trial lists on ClinicalTrials.gov.
Grants1
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
| Project | Title | Principal investigators | Organization | Funder | Fiscal years |
|---|---|---|---|---|---|
| R01CA235773 | Expanding population-level interventions to help more low-income smokers quit | KREUTER, MATTHEW W.; MCQUEEN, AMY | WASHINGTON UNIVERSITY | NATIONAL CANCER INSTITUTE | 2019 to 2023 |
Source NIH RePORTER
Trial comparisons3
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
| Comparison | Source |
|---|---|
| Tobacco Quitline Only vs Tobacco Quitline Plus Smoke Free Homes: 7day Point Prevalence for Smoking | Trial comparisons |
| Tobacco Quitline Only vs Tobacco Quitline Plus Smoke Free Homes: deaths from any cause | Trial comparisons |
| Tobacco Quitline Only vs Tobacco Quitline Plus Smoke Free Homes: serious adverse events | Trial comparisons |
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT04311983
GET https://conductscience.org/api/trials/v1/NCT04311983/registered