Lee Aaron A, Gabriele Jeanne M
a VA Center for Clinical Management Research.
b G. V. (Sonny) Montgomery Veterans Affairs Medical Center.
Behav Med. 2018 Oct-Dec;44(4):263-270. doi: 10.1080/08964289.2017.1292998. Epub 2017 Mar 21.
Posttraumatic stress is associated with increased body mass index (BMI) and rates of obesity. Black adults are at greater risk for obesity, trauma exposure, development of posttraumatic stress disorder, and comorbid sleep problems compared to White adults. Accordingly, Black adults with a history of trauma exposure may be at greater risk for elevated BMI associated with posttraumatic stress and insomnia. Multiple linear regression was used to examine race as a moderator of the relationship between posttraumatic symptoms and insomnia with BMI in a sample of Black and White trauma-exposed Veterans (N = 171), controlling for age and sex. There was a significant interaction of race with PTSD (p = 0.042) and insomnia symptoms (p = 0.045) on BMI. Simple slopes showed a significant positive association of posttraumatic stress and BMI among Black (p = 0.003), but not White Veterans (p = 0.590). Similarly, insomnia was significantly associated with greater BMI for Black (p = 0.023), but not White Veterans (p = 0.496). Posttraumatic stress and insomnia may play a particularly important role in the development of weight related health problems among Black Veterans. Early identification and treatment of these symptoms may reduce the risk of obesity among this vulnerable population.
创伤后应激与体重指数（BMI）升高及肥胖率增加有关。与白人成年人相比，黑人成年人患肥胖症、遭受创伤、患创伤后应激障碍以及伴有睡眠问题的风险更高。因此，有创伤暴露史的黑人成年人可能因创伤后应激和失眠而面临更高的BMI升高风险。在一个由黑人和白人创伤暴露退伍军人组成的样本（N = 171）中，采用多元线性回归来检验种族作为创伤后症状与失眠和BMI之间关系的调节因素，并对年龄和性别进行了控制。种族与创伤后应激障碍（PTSD）（p = 0.042）和失眠症状（p = 0.045）对BMI存在显著交互作用。简单斜率分析显示，创伤后应激与黑人退伍军人的BMI之间存在显著正相关（p = 0.003），而白人退伍军人则无此相关性（p = 0.590）。同样，失眠与黑人退伍军人较高的BMI显著相关（p = 0.023），而白人退伍军人则无此相关性（p = 0.496）。创伤后应激和失眠可能在黑人退伍军人体重相关健康问题的发展中起特别重要的作用。早期识别和治疗这些症状可能会降低这一弱势群体患肥胖症的风险。
