Hoare Erin, Millar Lynne, Fuller-Tyszkiewicz Matthew, Skouteris Helen, Nichols Melanie, Malakellis Mary, Swinburn Boyd, Allender Steven
School of Health and Social Development, Deakin University, Geelong, Victoria, Australia.
School of Psychology, Deakin University, Geelong, Victoria, Australia Centre for Social and Early Emotional Development, Deakin University, Burwood, Victoria, Australia.
BMJ Open. 2016 Mar 14;6(3):e010072. doi: 10.1136/bmjopen-2015-010072.
Adolescence is a period of increased risk for mental health problems and development of associated lifestyle risk behaviours. This study examined cross-sectional and longitudinal associations between obesogenic risk factors, weight status, and depressive symptomatology in a cohort of Australian adolescents.
Prospective cohort study.
The study used repeated measures data from the Australian Capital Territory (ACT) It's Your Move project, an Australian community-based obesity prevention intervention. Intervention effect was non-significant therefore intervention and comparison groups were combined in this study.
Total sample was 634 secondary school students (female n=338, male n=296) with mean age 13 years (SD=0.6) at baseline (2012) and 15 years (SD=0.6) at follow-up (2014) recruited from 6 government secondary schools in the ACT.
Primary outcome was depressive symptomatology measured by Short Mood and Feelings Questionnaire. Secondary outcomes were weight status, physical activity, screen time and diet related measures.
Increased physical activity was associated to lower depressive symptomatology among males (OR=0.35, p<0.05). Sweet drink (OR=1.15, p<0.05) and takeaway consumption (OR=1.84, p<0.05) were associated with higher levels of depressive symptomatology among females at follow-up. Males who were classified as overweight or obese at baseline, and remained so over the study period, were at increased risk of depressive symptomatology at follow-up (b=1.63, 95% CI 0.33 to 2.92). Inactivity among males over the 2-year study period was predictive of higher depressive symptomatology scores at follow-up (b=2.55, 95% CI 0.78 to 4.32). For females, those who increased their consumption of takeaway foods during the study period were at increased risk for developing depressive symptomatology (b=1.82, 95% CI -0.05 to 3.71).
There are multiple, probably complex, relationships between diet, physical activity and outcomes of obesity and mental health as well as between the outcomes themselves. Healthier diets and increased physical activity should be foundations for healthier body weight and mental health.
ACTRN12615000842561; Results.
青春期是心理健康问题及相关生活方式风险行为增加的时期。本研究调查了澳大利亚青少年队列中致肥胖风险因素、体重状况与抑郁症状之间的横断面和纵向关联。
前瞻性队列研究。
本研究使用了来自澳大利亚首都地区（ACT）“这是你的行动”项目的重复测量数据，该项目是一项基于澳大利亚社区的肥胖预防干预措施。干预效果不显著，因此本研究将干预组和对照组合并。
总样本为634名中学生（女性n = 338，男性n = 296），基线时（2012年）平均年龄13岁（标准差=0.6），随访时（2014年）平均年龄15岁（标准差=0.6），从ACT的6所政府中学招募。
主要结局是用简短情绪与感受问卷测量的抑郁症状。次要结局是体重状况、身体活动、屏幕时间和饮食相关指标。
身体活动增加与男性抑郁症状减轻相关（比值比=0.35，p<0.05）。随访时，甜饮料（比值比=1.15，p<0.05）和外卖消费（比值比=1.84，p<0.05）与女性抑郁症状水平较高相关。基线时被归类为超重或肥胖且在研究期间一直如此的男性，随访时抑郁症状风险增加（b = 1.63，95%置信区间0.33至2.92）。在为期2年的研究期间男性缺乏身体活动可预测随访时抑郁症状得分较高（b = 2.55，95%置信区间0.78至4.32）。对于女性，在研究期间增加外卖食品消费的人患抑郁症状的风险增加（b = 1.82，95%置信区间-0.05至3.71）。
饮食、身体活动与肥胖及心理健康结局之间以及这些结局本身之间存在多种可能复杂的关系。更健康的饮食和增加身体活动应是更健康体重和心理健康的基础。
ACTRN12615000842561；结果
