Lee Rebecca E, Harris Kari Jo, Catley Delwyn, Shostrom Valerie, Choi Simon, Mayo Matthew S, Okuyemi Kola, Kaur Harsohena, Ahluwalia Jasjit S
Department of Preventive Medicine and Public Health, University of Kansas School of Medicine, Kansas City, KS, USA.
J Natl Med Assoc. 2005 Jan;97(1):53-61.
This study examined sociodemographic, behavioral and psychosocial factors associated with BMI, weight perceptions and trying to lose weight among African-American smokers (N=600, M=44.2 years, 70% female). Sixty-eight percent of the sample were overweight or obese (sample BMI M=28.0, SD=6.7). Three separate, simultaneous multivariable regression models were used to determine which factors were associated with BMI, weight perceptions and trying to lose weight. Poorer health, female gender and high-school education or higher were significantly associated with higher BMIs (p<0.05). Being female (OR=5.8, 95% CI=3.6-9.3) and having a higher BMI (OR=0.6, 95% CI=0.5-0.6) was associated with perception of overweight and smoking more cigarettes per day (OR=1.0, 95% CI=1.0-1.1), and perceiving oneself as overweight (OR=14.1, 95% CI=8.2-24.2) was associated with trying to lose weight. Participants somewhat underestimated their BMI in their weight perceptions. Those who perceived themselves as overweight were more likely to be trying to lose weight; therefore, increasing participant awareness of actual BMI status may lead to improved weight-control efforts in African-American smokers. Several expected associations with outcomes were not found, suggesting that BMI and weight constructs are not well-understood in this population.
本研究调查了非裔美国吸烟者(N = 600,平均年龄44.2岁,70%为女性)中与体重指数(BMI)、体重认知及尝试减肥相关的社会人口学、行为和心理社会因素。样本中68%超重或肥胖(样本BMI平均值 = 28.0,标准差 = 6.7)。使用三个独立的同时进行的多变量回归模型来确定哪些因素与BMI、体重认知及尝试减肥相关。健康状况较差、女性以及高中及以上学历与较高的BMI显著相关(p<0.05)。女性(比值比 = 5.8,95%置信区间 = 3.6 - 9.3)、较高的BMI(比值比 = 0.6,95%置信区间 = 0.5 - 0.6)与超重认知及每天吸烟更多(比值比 = 1.0,95%置信区间 = 1.0 - 1.1)相关,而自我认知为超重(比值比 = 14.1,95%置信区间 = 8.2 - 24.2)与尝试减肥相关。参与者在体重认知中对自己的BMI有所低估。那些自我认知为超重的人更有可能尝试减肥;因此,提高参与者对实际BMI状况的认识可能会改善非裔美国吸烟者的体重控制努力。未发现一些预期的与结果的关联,这表明该人群对BMI和体重构成的理解并不充分。