Smoking Cessation Intervention in Public Housing

November 20, 2018 updated by: Medical University of South Carolina

Social Ecological Based Smoking Cessation Intervention in Public Housing Neighborhoods

The major aim of this study is to test the effectiveness of a bundled, multi-level intervention (Sister to Sister) on smoking cessation outcomes in female smokers residing in public housing neighborhoods.

Hypothesis 1.1: As compared to the control group, women receiving the Sister to Sister Intervention will have higher 7-day point prevalence quit rates at 6- and 12-months as validated by salivary cotinine.

Hypothesis 1.2: As compared to the control group, women receiving the Sister to Sister Intervention will have higher 6- and 12-month prolonged smoking abstinence as validated by salivary cotinine.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This was a cluster randomized controlled study evaluating the effect of a multi-level intervention, Sister to Sister, on the smoking cessation in two Southeastern US metropolitan areas. Fourteen subsidized housing neighborhoods, eight in Charleston, SC and six in Augusta, GA, were pair matched based on size; with one neighborhood in each pair randomized to the intervention to ensure balanced recruitment between groups. Neighborhoods ranged in size from 22 to 33 participants with a total sample size of 409 women; neighborhoods were chosen as the primary sampling unit to prevent contamination of the outcome within neighborhoods, with women in the neighborhoods as secondary sampling unit. All statistical analyses were conducted using SAS 9.2 (SAS Institute, Cary, NC) with statistical significance at an alpha level of 0.05. Comparison between groups at baseline used t-tests for continuous variables and chi-square tests for categorical variables. The primary outcome of interest was smoking status which was dichotomized (smoker/non-smoker) at the 6 and 12 month measurements. Smoking status was determined by cotinine levels in saliva with non-smokers defined as those with cotinine levels of 14 ng/mL or less.

Study Type

Interventional

Enrollment (Actual)

420

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Georgia
      • Augusta, Georgia, United States, 30901
        • Medical College of Georgia
    • South Carolina
      • Charleston, South Carolina, United States, 29425
        • Medical University of South Carolina

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • 18 yrs of age and older,
  • female, resident of public housing, daily smoker

Exclusion Criteria:

  • pregnant,
  • breastfeeding,
  • no intentions to quit smoking

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Delayed Control
Women in the delayed control condition received culturally sensitive smoking cessation written materials at week 1, and mailed materials at week 6, 12, and 18. At the end of the study (i.e., after the 12 month data collection), participants were offered counseling, nicotine patches, and community health worker contacts.
Behavioral: Control
Written Cessation Materials
Experimental: Experimental
Women in neighborhoods randomized to the S2S received 24-week bundled multi-level intervention. Individual-led strategies were led by paid community health workers (CHWs). The CHWs provided 1:1 contact to reinforce social support, and enhanced self-efficacy with cessation attempts. A certified smoking cessation counselor led behavioral group sessions using the S2S handbook based on the PHS Guidelines. The weekly group sessions were initiated during the 1st week of the intervention, with a total of 6 group sessions over a 6-week period. Transdermal nicotine patches were offered to participants who set a quit date. Within the 24-week study period, the neighborhood tenant association, in partnership with study staff, implemented at least two neighborhood level anti-smoking activities
Behavioral: Experimental
Neighborhood level interventions, peer group (counseling, NRT), and individual level (Coach/CHW)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Abstinent From Smoking
Time Frame: 12 month
Reported abstinence validated by exhaled CO and saliva cotinine
12 month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Medical University of South Carolina

Collaborators

National Heart, Lung, and Blood Institute (NHLBI)

Investigators

  • Principal Investigator: Jeannette Andrews, PhD, University of South Carolina

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2009

Primary Completion (Actual)

May 15, 2018

Study Completion (Actual)

May 15, 2018

Study Registration Dates

First Submitted

December 17, 2009

First Submitted That Met QC Criteria

December 17, 2009

First Posted (Estimate)

December 18, 2009

Study Record Updates

Last Update Posted (Actual)

December 13, 2018

Last Update Submitted That Met QC Criteria

November 20, 2018

Last Verified

November 1, 2018

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • MUS08022834
  • R01HL090951 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

Contact the PI

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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