Measuring the effect of a worksite-based nutrition intervention on food consumption

Hébert, James R.; Stoddard, Anne M.; Harris, D.R.; Sorensen, Glorian; Hunt, Mary Kay; Morris, Diane H.; Ockene, Judith K.

doi:10.1016/1047-2797(93)90086-j

Cited by 24 publications

(24 citation statements)

References 21 publications

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“…Most of the trials used worksite, or whatever unit of cluster randomization, as the unit of analysis (8,11,13,22,26,27,39). Those using workers as the unit of analysis took into account the effect of the cluster randomization procedure by incorporating a nested design structure (29,36,37,51) or by using other procedures (18,30,31,35,47). Seven trials did not take cluster randomization into account when analyzing their data (12,16,24,28,38,47,49).…”

Section: Discussionmentioning

confidence: 99%

“…Eight studies (11,18,23,26,27,31,39,48) matched subjects or clusters to factors such as worksite size, gender distribution, blue-and white-collar distribution, and other factors. Four studies stratified worksites in the design phase before the randomization (11,13,36,37). Most of the trials used worksite, or whatever unit of cluster randomization, as the unit of analysis (8,11,13,22,26,27,39).…”

Section: Discussionmentioning

confidence: 99%

“…Most (N=27) of them focused on tobacco control either exclusively (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) or as part of a wider health promotion program (22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34). Sixteen health promotion programs focused exclusively (35)(36)(37)(38)(39)(40)(41)(42)(43) or in part (23-27, 31, 34, 43) on diet. An increase in physical activity was the goal for 14 health promotion trials; in 3 it was the exclusive factor (44)(45)(46), and in 11 it was part of a wider health promotion program (24, 25, 29-34, 43, 47, 48).…”

Section: Characteristics Of the Trialsmentioning

confidence: 99%

“…In the analysis, one trial included the companies that did not agree to participate after having been assigned to the treatment group (36), while all the other trials excluded these companies from the analysis. Workers who were assigned to the intervention group but did not participate in the health promotion activities were usually included in the analysis, while those who did not complete the baseline assessments could not be included in the analysis.…”

Section: Participationmentioning

confidence: 99%

“…The criteria used to select workplaces for the trials were clearly stated in 12 (12,13,17,22,26,28,29,31,35,36,38,51) of the 45 trials. The criteria used included number of workers (13,22,26,29,36), low turnover rates (31,36), high response rate at baseline (22), or acceptability of the program before the randomization process (11). The individual inclusion criteria also varied among the studies in that most of the studies included all or a sample of workers in a worksite, two trials included only at-risk populations (32,42), and six trials used only volunteers (15-18, 32, 44).…”

Section: Target Populationmentioning

confidence: 99%

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Health promotion trials at worksites and risk factors for cancer

Janer¹,

Sala²,

Kogevinas³

2002

Scand J Work Environ Health

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The following articles refer to this text: 2002;28(3) Studies of worksite health promotion have frequently reported larger effects than those at the community level.Many of these studies have serious methodological problems. Forty-five worksite health promotion trials following specific quality criteria were selected and estimated for behavioral changes in cancer risk factors and the effectiveness of different intervention components. Tobacco control programs found quit rates of about 5% with relapse rates of 40% to 80% at 6 months after the intervention. Effectiveness increased with the duration of the intervention for at least 6 months, repeated contacts with the participants, continuous support, and tailored messages. There was less evidence for the long-term effectiveness of incentives. Trials on diet, alcohol, physical activity, overweight, and solar radiation showed the same positive trends. The overall evidence indicates a modest but positive effect of health promotion trials at worksites and the effect, for smoking cessation trials, is slightly larger than that of community-based trials. Many of the recommendations made to increase participation and effectiveness were not based on empirical data.

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