The University of Sydney, Westmead Applied Research Centre, Faculty of Medicine and Health, Sydney, Australia.
The University of Sydney, Prevention Research Collaboration, Charles Perkins Centre, Sydney School Public Health, Sydney, Australia.
JMIR Mhealth Uhealth. 2020 May 26;8(5):e15849. doi: 10.2196/15849.
The incidence of obesity among adolescents is increasing. Text messages are a primary communication form for adolescents and potentially a scalable strategy for delivering population health interventions.
This study aimed to determine the effectiveness of text message interventions in reducing BMI in adolescents and describe characteristics that are common to effective interventions.
This systematic review included randomized controlled trials of text message lifestyle interventions involving adolescents aged 10 to 19 years with outcomes focused on obesity prevention or management. Primary outcome was objective or self-report change in BMI.
In total, 4362 records were identified, and 215 full-text articles were assessed for eligibility. A total of 8 unique studies were identified, including 767 participants, mean age 14.3 (SD 0.9) years, BMI 29.7 (SD 1.6) kg/m2 and 53.1% (407/767) female (31/101, 30.7%-172/172, 100.0%). All interventions were multicomponent. The median active intervention period was 4.5 months. During the active and extended intervention phases, text messages accounted for >50% (8 studies) and >85% (3 studies) of contact points, respectively. Text messages were heterogeneous, with a median of 1.5 text messages sent per week (range: 1-21). A total of 4 studies utilized two-way text message communication with health professionals Of the 8 studies, 7 demonstrated reductions in BMI or BMI z-score in the intervention group compared with the control at the end of the final follow-up. The effect was only statistically significant in 1 study at 6 months. Over 6 months, reductions in BMI (kg/m2) ranged from 1.3% to 4.5% and BMI z-score ranged from 4.2% to 28.1%. Overall quality of the studies was low.
Further research is required to elucidate the effectiveness and potential impact of text message interventions on weight and weight-related behaviors in adolescents.
青少年肥胖的发病率正在上升。短信是青少年的主要交流方式，也是提供人群健康干预措施的潜在可扩展策略。
本研究旨在确定短信干预措施在降低青少年 BMI 方面的有效性，并描述对有效干预措施具有普遍意义的特征。
本系统评价纳入了涉及 10 至 19 岁青少年的短信生活方式干预的随机对照试验，研究结果集中在肥胖预防或管理上。主要结果是 BMI 的客观或自我报告变化。
共确定了 4362 条记录，对 215 篇全文文章进行了资格评估。共确定了 8 项独特的研究，包括 767 名参与者，平均年龄 14.3（0.9）岁，BMI 29.7（1.6）kg/m2，53.1%（407/767）为女性（31/101，30.7%-172/172，100.0%）。所有干预措施均为多组分。积极干预期的中位数为 4.5 个月。在积极和扩展干预阶段，短信分别占接触点的>50%（8 项研究）和>85%（3 项研究）。短信具有异质性，每周发送的短信中位数为 1.5 条（范围：1-21）。共有 4 项研究利用了与健康专业人员的双向短信通信。在 8 项研究中，与对照组相比，在最后一次随访结束时，干预组的 BMI 或 BMI z 评分在 7 项研究中降低。只有 1 项研究在 6 个月时具有统计学意义。6 个月期间，BMI（kg/m2）的降低幅度为 1.3%至 4.5%，BMI z 评分的降低幅度为 4.2%至 28.1%。研究的整体质量较低。
需要进一步研究阐明短信干预措施对青少年体重和与体重相关行为的有效性和潜在影响。
