方法采用现场调查的方法在北京地区选取943份样本，3个月后随机抽取32人对饮食方式调查表重测。
Methods A sample containing 943 people was investigated by sampling investigation method, and 32 of them were selected randomly and recompleted the inventory after 3 months.
调查表明，低收入人群不健康的饮食方式是他们自身造成的。他们的饮食选择与收入、离商店的远近及烹饪技巧并没有必然联系。
The study also showed that low earners are choosing to eat unhealthily. Their food choices were not linked to their income, their access to shops or their cooking skills.
调查表明，低收入人群不健康的饮食方式是他们自身造成的。
The study also showed that low earners are choosing to eat unhealthily.
调查表明，低收入人群不健康的饮食方式是他们自身造成的。
The study also showed that low earners are choosing to eat unhealthily.
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