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Methods and baseline characteristics of two group-randomized trials with multiracial and multiethnic working-class samples.

Publication ,  Journal Article
Stoddard, AM; Krieger, N; Barbeau, EM; Bennett, GG; Fay, ME; Sorensen, G; Emmons, K
Published in: Preventing chronic disease
October 2005

Few papers address the methodological challenges in recruiting participants for studies of cancer prevention interventions designed for multiracial and multiethnic working-class populations. This paper reports the results of the sample selection and survey methods for two group-randomized intervention studies.The two group-randomized intervention studies, Healthy Directions-Small Business (HD-SB) and Healthy Directions-Health Centers (HD-HC), included a worksite-based study in 26 small manufacturing businesses and a study in 10 outpatient health centers. We used selection and recruitment methods to obtain a multiracial and multiethnic working-class study sample. In 2000 and 2001, we assessed baseline measures of sociodemographic characteristics and behavioral outcomes by self-report. We then computed intraclass correlation coefficients (ICCs).Of the 1740 participants in the HD-SB study, 68% were non-Hispanic whites, and 76% had working-class occupations. In the HD-HC study, 59% of 2219 participants were non-Hispanic whites. Among those who worked, 51% had working-class occupations. Large percentages of both samples reported not meeting recommended guidelines for the target behaviors. For example, 86% of members of both samples consumed fewer than the recommended five servings of fruits and vegetables per day. The ICCs for the four target behaviors in HD-SB were between 0.006 and 0.02. In the HD-HC study, the ICCs ranged from 0.0004 to 0.003.The two studies were successful in recruiting multiracial and multiethnic working-class participants. Researchers will find the estimates of the primary outcomes and their ICCs useful for planning future studies.

Duke Scholars

Published In

Preventing chronic disease

EISSN

1545-1151

ISSN

1545-1151

Publication Date

October 2005

Volume

2

Issue

4

Start / End Page

A10

Related Subject Headings

  • White People
  • United States
  • Socioeconomic Factors
  • Randomized Controlled Trials as Topic
  • Patient Selection
  • Outcome and Process Assessment, Health Care
  • Occupational Health
  • Middle Aged
  • Massachusetts
  • Male
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Stoddard, A. M., Krieger, N., Barbeau, E. M., Bennett, G. G., Fay, M. E., Sorensen, G., & Emmons, K. (2005). Methods and baseline characteristics of two group-randomized trials with multiracial and multiethnic working-class samples. Preventing Chronic Disease, 2(4), A10.
Stoddard, Anne M., Nancy Krieger, Elizabeth M. Barbeau, Gary G. Bennett, Martha E. Fay, Glorian Sorensen, and Karen Emmons. “Methods and baseline characteristics of two group-randomized trials with multiracial and multiethnic working-class samples.Preventing Chronic Disease 2, no. 4 (October 2005): A10.
Stoddard AM, Krieger N, Barbeau EM, Bennett GG, Fay ME, Sorensen G, et al. Methods and baseline characteristics of two group-randomized trials with multiracial and multiethnic working-class samples. Preventing chronic disease. 2005 Oct;2(4):A10.
Stoddard, Anne M., et al. “Methods and baseline characteristics of two group-randomized trials with multiracial and multiethnic working-class samples.Preventing Chronic Disease, vol. 2, no. 4, Oct. 2005, p. A10.
Stoddard AM, Krieger N, Barbeau EM, Bennett GG, Fay ME, Sorensen G, Emmons K. Methods and baseline characteristics of two group-randomized trials with multiracial and multiethnic working-class samples. Preventing chronic disease. 2005 Oct;2(4):A10.

Published In

Preventing chronic disease

EISSN

1545-1151

ISSN

1545-1151

Publication Date

October 2005

Volume

2

Issue

4

Start / End Page

A10

Related Subject Headings

  • White People
  • United States
  • Socioeconomic Factors
  • Randomized Controlled Trials as Topic
  • Patient Selection
  • Outcome and Process Assessment, Health Care
  • Occupational Health
  • Middle Aged
  • Massachusetts
  • Male