University of North Carolina-Gillings School of Public Health, Chapel Hill, NC 27599-7440, USA.
Clin Trials. 2012 Apr;9(2):215-25. doi: 10.1177/1740774511432554. Epub 2012 Jan 24.
Based on national estimates, the majority of working adults are overweight or obese. Overweight and obesity are associated with diminished health, productivity, and increased medical costs for employers. Worksite-based weight loss interventions are desirable from both employee and employer perspectives.
To investigate organizational- and employee-level participation in a group-randomized controlled worksite-based weight loss trial.
Using a set of inclusion criteria and pre-established procedures, we recruited worksites (and overweight/obese employees from enrolled worksites) from the North Carolina Community College System to participate in a weight loss study. Recruitment results at the worksite (organization) and employee levels are described, along with an assessment of representativeness.
Eighty-one percent (48/59) of community colleges indicated initial interest in participating in the weight loss study, and of those, 17 colleges were enrolled. Few characteristics distinguished enrolled community colleges from unenrolled colleges in the overall system. Eligible employees (n = 1004) at participating colleges were enrolled in the weight loss study. On average, participants were aged 46.9 years (SD = 12.1 years), had a body mass index (BMI) of 33.6 kg/m(2) (SD = 7.9 kg/m(2)), 83.2% were White, 13.3% African American, 82.2% female, and 41.8% reported holding an advanced degree (master's or doctoral degree). Compared with the larger North Carolina Community College employee population, participants most often were women, but few other differences were observed.
Employees with reduced computer access may have been less likely to participate, and limited data on unenrolled individuals or colleges were available.
Community colleges are willing partners for weight loss intervention studies, and overweight/obese employees were receptive to joining a weight loss study offered in the workplace. The results from this study are useful for planning future worksite-based weight loss interventions and research studies that achieve high participation rates at the employee and organizational levels.
基于全国估计，大多数成年工作者超重或肥胖。超重和肥胖与健康状况恶化、生产力降低以及雇主医疗费用增加有关。从员工和雇主的角度来看，基于工作场所的减肥干预措施是理想的。
调查一项基于群组随机对照的工作场所减肥试验中组织和员工层面的参与情况。
我们使用一组纳入标准和预先制定的程序，从北卡罗来纳社区学院系统招募工作场所（以及来自参与工作场所的超重/肥胖员工）参加减肥研究。描述了工作场所（组织）和员工层面的参与结果，并评估了代表性。
81%（48/59）的社区学院表示对参与减肥研究初步感兴趣，其中有 17 所学院被录取。在整个系统中，被录取的社区学院与未被录取的学院之间很少有特征区别。参与学院的合格员工（n=1004）被纳入减肥研究。平均而言，参与者年龄为 46.9 岁（SD=12.1 岁），体重指数（BMI）为 33.6kg/m²（SD=7.9kg/m²），83.2%为白人，13.3%为非裔美国人，82.2%为女性，41.8%拥有高级学位（硕士或博士学位）。与更大的北卡罗来纳社区学院员工群体相比，参与者中女性居多，但观察到的其他差异很少。
计算机访问受限的员工可能不太可能参与，并且关于未参与的个人或学院的数据有限。
社区学院是减肥干预研究的合作伙伴，超重/肥胖员工愿意参加在工作场所提供的减肥研究。这项研究的结果对于规划未来基于工作场所的减肥干预措施和研究计划非常有用，这些计划在员工和组织层面实现了高参与率。
