Girl's health Enrichment Multi-site Studies (GEMS)

Author of Tool: 

Baranowski T, Baranowski JC, Cullen KW, Thompson DI, Nicklas T, Zakeri I, Rochon J.

Key references: 

Cullen KW, Watson K, Himes JH, Baranowski T, Rochon J, Waclawiw M, Sun W, Stevens M, Slawson DL, Matheson D, Robinson TN. Evaluation of quality control procedures for 24 hour dietary recalls: Results from the Girl’s health Enrichment Multi-site Studies (GEMS). Prev Med. 2004; 38:14-23.

Cullen KW, Klesges LM, Sherwood NE, Baranowski T, Beech B, Pratt C, Zhou A, Rochon J. Measurement characteristics of diet-related psychosocial questionnaires among African-American parents and their 8-to-10 year old daughters: Results from the Girl’s health Enrichment Multi-site Studies (GEMS). Prev Med. 2004: 38:34-42.

Treuth MS, Sherwood NE, Baranowski T, Butte NF, Jacobs DR, McClanahan B, Gao S, Rochon J, Zhou A, Robinson TN, Pruitt L, Haskell W, Obarzanek E. Physical activity self report and accelerometry measures from the Girl’s health Enrichment Multi-site Studies (GEMS). Prev Med. 2004; 38:43-49.

Sherwood NE, Taylor WC, Treuth MS, Klesges LM, Baranowski T, Zhou A, Pratt C, McClanahan B, Robinson TN, Pruitt L, Miller W. Measurement characteristics of activity-related psychosocial measures in 8-10 year old African-American girls in the Girl’s health Enrichment Multi-site Study (GEMS). Prev Med. 2004; 38:60-68.

Taylor WC, Baranowski T, Klesges L, Ey S, Pratt C, Rochon J, Zhou A. Psychometric properties of optimism and pessimism: Results from the Girl’s health Enrichment Multi-site Studies (GEMS). Prev Med. 2004; 38:69-77.

Klesges L, Baranowski T, Beech BM, Cullen KW, Murray DM, Rochon J, Pratt C. Social desirability bias in self-reported dietary, physical activity and weight concerns measures in 8-10 year old African-American girls: Results from the Girl’s health Enrichment Multi-site Studies (GEMS). Prev Med. 2004; 38:78-87.

Rochon J, Klesges RC, Story M, Robinson TN, Baranowski T, Obarzanek E, Mitchell M. Common design elements of the Girl’s health Enrichment Multi-site Studies (GEMS). Ethnicity & Disease. 2003, 13 (1, supplement): S1-6 -- S1-14.

Baranowski T, Baranowski JC, Cullen KW, Thompson DI, Nicklas T, Zakeri I, Rochon J. The Fun, Food, and Fitness Project (FFFP): The Baylor GEMS Pilot Study. Ethnicity & Disease. 2003, 13:1 (Supplement 1): S1-30-9.

Primary use / Purpose: 

The Girl's Health Enrichment Multi-site Studies (GEMS) refers to a host of studies designed with the aim of developing and testing interventions to prevent excessive weight gain by African-American girls as they enter the high-risk transitional period of, and proceed through, puberty. This research, under PI James Rochon, PhD., was conducted as four inter-dependent, clinical trials. All trials had similar study populations, followed similar follow-up schedules and used a "core" set of evaluation procedures. Nonetheless, GEMS was not a "multi-center clinical trial" in the usual sense - each field center evaluated its own intervention (and corresponding control). Included are some of the measures utilized in GEMS clinical trials. [Information adapted from 'The Biostatistics Center/Research Projects' at George Washington University Website]

Background: 

The Girls health Enrichment Multi-site Studies (GEMS) was an obesity prevention research initiative supported by the National Heart, Lung, and Blood Institute (NHLBI), with a target population of young African-American girls.

"Interventions included a 24-month period and core follow-up evaluations performed at baseline, and at 12 and 24 months following randomization. Body-mass index (BMI) was the primary endpoint in all four studies. Secondary outcomes include anthropometric measures (e.g., waist circumference), measures of physical activity (recalled and recorded directly), diet and nutritional data (e.g., micro- and macronutrients from a 24-hr dietary recall), and behavioral and psychosocial evaluations.
This research was conducted in 4 distinct phases. The "developmental phase" included a formative assessment phase which used qualitative methods to understand the specific needs of this population of girls and their families. A validity and reliability study was designed to compare two physical activity recall instruments and to determine whether a Digimax pedometer can measure physical activity as well as that provided by the CSA accelerometer device. A pilot study was performed prior to the main study. The purpose of the pilot was to demonstrate the feasibility of conducting this research program and to obtain data for planning the main study. The final component was the full-scale implementation of the different studies."

[Information adapted from 'The Biostatistics Center/Research Projects' at George Washington University Website]

Keywords: 

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