Examination of whether early weight loss predicts 1-year weight loss among those enrolled in an Internet-based weight loss program.
Examination of whether early weight loss predicts 1-year weight loss among those enrolled in an Internet-based weight loss program.
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DOI：
10.1038/ijo.2015.89
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发表时间：
2015-10
期刊：
影响因子：
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通讯作者：
Wing RR
中科院分区：
文献类型：
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作者：
Unick JL;Leahey T;Kent K;Wing RR
在面对面干预中，一个月的体重减轻（WL）可预测治疗后的WL;然而，这在互联网项目中是否成立尚不清楚。本研究检查了4周WL是否预测了12周互联网程序后以及6个月和12个月随访时的WL。181名参与者（BMI=33.4±5.5kg/m; 83.1%女性）接受了为期12周的基于行为的互联网WL计划，包括每周视频课程。参与者被给予每日WL，卡路里和体力活动目标，并要求每周在研究网站上输入这些数据。提供了个性化的反馈。使用4周WL，个体被分类为“早期无应答者”（<2.0%WL）或“早期应答者”（≥ 2.0%WL）。在3个月（-1.3 3. 8% vs. -6.3 4. 3%）、6个月（-1.7 5. 1% vs. -5.8 5. 2%）和12个月（-0.05 6. 8% vs. -2.7 6. 3%，p <0.05）时，早期无应答者的WL显著低于早期应答者。在3、6和12个月时，早期无应答者达到≥5% WL的几率分别是早期应答者的8.5（95% CI：3.3-22.1）、3.4（95% CI：1.4-8.3）和2.6（95% CI：0.93-7.4）倍。与早期反应者相比，早期无反应者在12周的干预中观看视频课程的次数较少，自我监测的次数较少（p <0.05）。这项研究提供了初步证据，即4周WL <2.0%会使个体在互联网计划后无法达到临床显著WL的风险增加。
One-month weight loss (WL) predicts post-treatment WL in face-to-face interventions; however whether this holds true within Internet programs is unknown. This study examined whether 4-week WL predicts WL following a 12-week Internet program and at 6 and 12 months follow-up. 181 participants (BMI=33.4±5.5kg/m; 83.1% female) received a 12-week behaviorally-based Internet WL program consisting of weekly video lessons. Participants were given a daily WL, calorie, and physical activity goal and asked to enter these data on the study website weekly. Personalized feedback was provided. Using 4-week WL, individuals were categorized as ‘early non-responders’ (<2.0% WL) or ‘early responders’ (≥2.0% WL). Early non-responders had significantly lower WL than early responders at 3 (-1.3±3.8% vs. -6.3±4.3%), 6 (-1.7±5.1% vs. -5.8±5.2%), and 12 months (-0.05±6.8% vs. -2.7±6.3%, p's<0.05). The odds of achieving a ≥5% WL were 8.5 (95% CI:3.3–22.1), 3.4 (95% CI:1.4-8.3), and 2.6 (95% CI:0.93-7.4) times lower in early non-responders, compared to early responders at 3, 6, and 12 months respectively. Compared to early responders, early non-responders viewed fewer video lessons and self-monitored less often across the 12-week intervention (p's<0.05). This study provides initial evidence that a 4-week WL of <2.0% places an individual at an increased risk of failing to achieve clinically significant WL following an Internet program.