VU University Medical Center/EMGO+ Institute, Department of Public and Occupational Health, Van der Boechorststraat 7, Amsterdam, Noord Holland 1081 BT, The Netherlands.
Am J Health Promot. 2011 Jul-Aug;25(6):396-401. doi: 10.4278/ajhp.091001-QUAN-319.
Evaluate counselors' adherence to an intervention protocol, counselors' competence, and the associations between three process indicators and body weight at follow-up in a 6-month individually based lifestyle intervention for construction workers.
Process evaluation with qualitative and quantitative data.
Occupational health service.
A total of 408 male construction workers with an elevated risk of cardiovascular disease received the intervention, and 27 occupational health professionals delivered the intervention.
Seven counseling sessions, the first during which four prescribed items had to be discussed. Motivational interviewing (MI) was used as a counseling technique.
The number of sessions and the items discussed were registered by the counselors. Adherence to MI was determined by expert scoring of transcripts of random segments of 19 counseling sessions. Counselors' competence was rated by participants and counselors separately. Associations between three process indicators and body weight at follow-up were determined by linear and logistic regression analyses.
Two-thirds of all participants attended five or more sessions, and 38.5% attended all seven sessions. In 90.2% of all cases, the counselor discussed all obligatory items in the first session. MI adherence was reached in one audiotaped fragment. Most (86.3%) of all participants agreed with the counselor being competent. Neither counselors' competence nor number of sessions or items discussed was significantly associated with body weight loss.
Performing five sessions and discussing four prescribed items was feasible for the counselors, whereas performing MI was not. Still, participants were positive about the counselors' competence and willing to attend the intervention sessions. Investigators are encouraged to report the evaluation of their intervention process to improve future lifestyle interventions in research or in practice.
评估顾问对干预方案的依从性、顾问的能力，以及在针对建筑工人的为期 6 个月的基于个体的生活方式干预中，三个过程指标与随访时体重之间的关联。
具有定性和定量数据的过程评估。
职业健康服务。
共有 408 名患有心血管疾病风险升高的男性建筑工人接受了干预，27 名职业健康专业人员提供了干预。
七次咨询会议，第一次会议必须讨论四个规定项目。采用动机访谈（MI）作为咨询技术。
顾问记录了咨询次数和讨论的项目。通过对 19 次咨询随机片段的转录进行专家评分来确定 MI 的依从性。参与者和顾问分别对顾问的能力进行了评分。通过线性和逻辑回归分析确定了三个过程指标与随访时体重之间的关联。
三分之二的参与者参加了五次或更多次会议，38.5%的参与者参加了所有七次会议。在所有情况下的 90.2%中，顾问在第一次会议中讨论了所有强制性项目。在一个录音片段中达到了 MI 依从性。大多数（86.3%）的参与者都同意顾问有能力。顾问的能力、咨询次数或讨论的项目与体重减轻均无显著相关性。
顾问完成五次会议和讨论四个规定项目是可行的，而进行 MI 则不行。尽管如此，参与者对顾问的能力持积极态度，并愿意参加干预会议。鼓励研究人员报告其干预过程的评估结果，以改进未来的生活方式干预研究或实践。
