Ho Sai-Yin, Wong Bonny Yee-Man, Lo Wing-Sze, Mak Kwok-Kei, Thomas G Neil, Lam Tai-Hing
School of Public Health, University of Hong Kong, Pokfulam, Hong Kong SAR.
Int J Pediatr Obes. 2010 Oct;5(5):420-7. doi: 10.3109/17477160903505910.
To examine the effects of perceived availability of fast-food shops, restaurants, and convenience stores on adolescent dietary intakes.
Survey data from 34 369 students in 42 Hong Kong secondary schools were collected in 2006-7. Respondents reported the availability of fast-food shops, restaurants and convenience stores in the neighbourhood, and their intakes of fruit, vegetables, high-fat foods and junk food/soft drinks. For intakes of high-fat foods and junk food/ soft drinks, ≤ once a week was defined as low consumption and the rest moderate/high consumption. At least three servings of vegetables and two servings of fruit daily were defined as sufficient consumption. Logistic regression yielded adjusted odds ratios (OR) for each dietary intake in relation to the reported food shops. Potential effect modifications by socio-demographic factors were also examined.
Perceived availability of fast-food shops and convenience stores were positively associated with moderate/high consumptions of high-fat foods (OR(fast) =1.10 and OR(con) =1.15) and junk food/soft drinks (OR(fast)=1.10 and OR(con) =1.10). Significant negative associations of the perceived availability of restaurants with intakes of vegetables and fruit were observed (OR(veg) =0.87 and OR(fruit) =0.83). The positive relationship between reporting fast-food shops with intake of junk food/soft drinks were observed only in boys and those with low perceived family affluence. The negative association of reporting restaurants with fruit consumption was found in those with low and middle perceived family affluence only.
Perceived availability of neighbourhood fast-food shops, restaurants, and convenience stores may have a negative impact on adolescent dietary intakes particularly for those from poorer families.
研究快餐店、餐厅和便利店的可及性对青少年饮食摄入的影响。
2006 - 2007年收集了香港42所中学34369名学生的调查数据。受访者报告了附近快餐店、餐厅和便利店的可及性，以及他们水果、蔬菜、高脂肪食物和垃圾食品/软饮料的摄入量。对于高脂肪食物和垃圾食品/软饮料的摄入量，每周≤1次被定义为低消费，其余为中度/高消费。每天至少三份蔬菜和两份水果的摄入量被定义为充足消费。逻辑回归得出每种饮食摄入量相对于报告的食品店的调整比值比（OR）。还研究了社会人口因素的潜在效应修正。
感知到的快餐店和便利店的可及性与高脂肪食物（OR(快餐)=1.10，OR(便利)=1.15）和垃圾食品/软饮料的中度/高消费呈正相关（OR(快餐)=1.10，OR(便利)=1.10）。观察到餐厅可及性与蔬菜和水果摄入量之间存在显著负相关（OR(蔬菜)=0.87，OR(水果)=0.83）。报告快餐店与垃圾食品/软饮料摄入量之间的正相关仅在男孩和感知家庭富裕程度低的人群中观察到。报告餐厅与水果消费之间的负相关仅在感知家庭富裕程度低和中等的人群中发现。
感知到的社区快餐店、餐厅和便利店的可及性可能对青少年饮食摄入产生负面影响，尤其是对来自较贫困家庭的青少年。
