Kolodziejczyk Julia K, Norman Gregory J, Barrera-Ng Angelica, Dillon Lindsay, Marshall Simon, Arredondo Elva, Rock Cheryl L, Raab Fred, Griswold William G, Sullivan Mark, Patrick Kevin
Center for Wireless & Population Health Systems (CWPHS), Qualcomm Institute/Calit2, University of California, San Diego, La Jolla, CA, United States.
JMIR Res Protoc. 2013 Nov 6;2(2):e48. doi: 10.2196/resprot.2789.
Little is known about the feasibility and acceptability of tailored text message based weight loss programs for English and Spanish-language speakers.
This pilot study evaluated the feasibility, acceptability, and estimated impact of a tailored text message based weight loss program for English and Spanish-language speakers. The purpose of this pilot study was to inform the development of a full-scale randomized trial.
There were 20 overweight or obese participants (mean age 40.10, SD 8.05; 8/20, 40% male; 9/20, 45% Spanish-speakers) that were recruited in San Diego, California, from March to May 2011 and evaluated in a one-group pre/post clinical trial. For 8 weeks, participants received and responded to 3-5 text messages daily sent from a fully automated text messaging system. They also received printed weight loss materials and brief 10-15 minute weekly counseling calls. To estimate the impact of the program, the primary outcome was weight (kg) measured during face-to-face measurement visits by trained research staff. Pre and post differences in weight were analyzed with a one-way repeated measures analysis of variance. Differences by language preference at both time points were analyzed with t tests. Body mass index and weight management behaviors also were examined. Feasibility and acceptability were determined by recruitment success, adherence (ie, percentage of replies to interactive text messages and attrition), and participant satisfaction.
Participants who completed the final assessment (N=18) decreased body weight by 1.85 kg (F1,17=10.80, P=.004, CI∆ 0.66-3.03, η(2)=0.39). At both time points, there were no differences in weight by language preference. Participants responded to 88.04% (986/1120) of interactive text messages, attrition rate was 10% (2/20), and 94% (19/20) of participants reported satisfaction with the program.
This fully automated text message based weight program was feasible with English and Spanish-speakers and may have promoted modest weight loss over an 8-week period.
Clinicaltrials.gov NCT01171586; http://clinicaltrials.gov/ct2/show/NCT01171586 (Archived by WebCite at http://www.webcitation.org/6Ksr6dl7n).
对于以短信为基础的量身定制减肥计划对英语和西班牙语使用者的可行性及可接受性，人们了解甚少。
这项初步研究评估了以短信为基础的量身定制减肥计划对英语和西班牙语使用者的可行性、可接受性及估计影响。该初步研究的目的是为全面随机试验的开展提供信息。
2011年3月至5月在加利福尼亚州圣地亚哥招募了20名超重或肥胖参与者（平均年龄40.10岁，标准差8.05；20人中有8人，40%为男性；20人中有9人，45%说西班牙语），并在一组前后对照临床试验中进行评估。在8周时间里，参与者每天接收并回复由全自动短信系统发送的3至5条短信。他们还收到了印刷的减肥材料，并参加每周10至15分钟的简短咨询电话。为了估计该计划的影响，主要结局指标是由经过培训的研究人员在面对面测量访视期间测量的体重（千克）。体重的前后差异采用单向重复测量方差分析进行分析。两个时间点上按语言偏好的差异采用t检验进行分析。还对体重指数和体重管理行为进行了检查。可行性和可接受性通过招募成功率、依从性（即对互动短信的回复百分比和损耗率）以及参与者满意度来确定。
完成最终评估的参与者（N = 18）体重减轻了1.85千克（F1,17 = 10.80，P = 0.004，CI∆ 0.66 - 3.03，η(2)=0.39）。在两个时间点上，按语言偏好的体重均无差异。参与者回复了88.04%（986/1120）的互动短信，损耗率为10%（2/20），94%（19/20）的参与者报告对该计划满意。
这个以短信为基础的全自动减肥计划对英语和西班牙语使用者是可行的，并且在8周期间可能促进了适度的体重减轻。
Clinicaltrials.gov NCT01171586；http://clinicaltrials.gov/ct2/show/NCT01171586（由WebCite存档于http://www.webcitation.org/6Ksr6dl7n）
