---
title: "Brief Intervention to Create Smoke-Free Homes Policies in Low-Income Households: North Carolina Effectiveness Trial"
nct_id: NCT01868672
overall_status: COMPLETED
phase: NA
sponsor: University of North Carolina, Chapel Hill
study_type: INTERVENTIONAL
primary_condition: Chronic Disease
countries: United States
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT01868672.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT01868672"
ct_last_update_post_date: 2014-08-04
last_seen_at: "2026-05-12T06:26:26.785Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Brief Intervention to Create Smoke-Free Homes Policies in Low-Income Households: North Carolina Effectiveness Trial

**NCT ID:** [NCT01868672](https://clinicaltrials.gov/study/NCT01868672)

## Key Facts

- **Status:** COMPLETED
- **Phase:** NA
- **Study Type:** INTERVENTIONAL
- **Target Enrollment:** 500
- **Lead Sponsor:** University of North Carolina, Chapel Hill
- **Collaborators:** National Cancer Institute (NCI), Emory University, The University of Texas Health Science Center, Houston, Washington University School of Medicine
- **Conditions:** Chronic Disease
- **Start Date:** 2013-06
- **Completion Date:** 2014-07
- **CT.gov Last Update:** 2014-08-04

## Brief Summary

The burden of tobacco use falls disproportionately on low-income populations, through high rates of primary smoking and exposure to secondhand smoke. The remarkable progress in creating smoke-free environments in the U.S. over the past two decades has left smoker's homes as one of the primary sources of exposure to secondhand smoke for both children and nonsmoking adults. Intervention research that identifies effective and practical strategies for reaching the minority of households that still allow smoking in the home has considerable potential to reduce smoke exposure, but suitable channels to reach low-income families are limited.

The proposed research will systematically test an intervention designed to create smoke-free homes in low income households among 2-1-1 callers. During this randomized control trial, researchers will disseminate and evaluate a brief smoke-free homes intervention through the established infrastructure of a North Carolina 2-1-1 call center. 2-1-1 is a nationally designated 3-digit telephone exchange, similar to 9-1-1 for emergencies or 4-1-1 for directory assistance, that links callers to community-based health and social services. The main hypothesis to be tested is that a higher proportion of households in the intervention group will establish and maintain a smoke-free home than in the measures-only control group.

## Eligibility

- **Minimum age:** 18 Years
- **Sex:** ALL
- **Healthy Volunteers:** Yes

```
Inclusion Criteria:

* Must be 18 years of age or older.
* Must speak and understand English.
* Must smoke and live with at least one other non-smoking person OR be a non-smoker who lives with a smoker(s).
* Must not have a total smoking ban in their home.

Exclusion Criteria:

* All participants who are not in immediate crisis will be invited to participate in the study.
```

## Arms

- **Control** (NO_INTERVENTION) — Participant receives usual care.
- **Intervention** (EXPERIMENTAL) — Educational print materials and coaching call: Intervention group participants receive three sets of mailed educational materials about making their home smoke-free and one coaching call.

## Interventions

- **Educational print materials and coaching call** (BEHAVIORAL) — Intervention group participants receive three sets of mailed educational materials about making their home smoke-free and one coaching call.

## Primary Outcomes

- **Presence of a total home smoking ban** _(time frame: Change from baseline in reported total home smoking bans at 3-month and 6-month follow-up)_

## Secondary Outcomes

- **Weekly secondhand smoke exposure for non-smokers** _(time frame: Change from baseline in reported secondhand smoke exposure fro non-smokers at 3-month and 6-month follow-up)_
- **Cessation attempts (for smokers)** _(time frame: Change from baseline in reported cessation attempts (for smokers) at 3-month and 6-month follow-up)_
- **Number of cigarettes smoked (for smokers)** _(time frame: Change from baseline in reported number of cigarettes smoked (for smokers) at 3-month and 6-month follow-up)_
- **Stage of change to quit smoking (for smokers)** _(time frame: Change from baseline in stage of change to quit smoking (for smokers) at 3-month and 6-month follow-up)_
- **Successful cessation (for smokers)** _(time frame: Change from baseline in successful cessation (for smokers) at 3-month and 6-month follow-up)_

## Locations (1)

- University of North Carolina, Chapel Hill, Chapel Hill, North Carolina, United States

## Recent Field Changes (last 30 days)

- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `design.phases` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `outcomes.secondary` — added _(2026-05-12)_
- `armsInterventions.arms` — added _(2026-05-12)_
- `armsInterventions.interventions` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `sponsor.collaborators` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_
- `locations.university of north carolina, chapel hill|chapel hill|north carolina|united states` — added _(2026-05-12)_

---

*Canonical: https://parkinsonspathways.com/agent/trials/NCT01868672.md*  
*Source data (authoritative): https://clinicaltrials.gov/study/NCT01868672*  
*This page is a raw mirror with no AI summary, no editorial enrichment, and no Parkinson's-specific filtering.*