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用低体重、正常体重、超重和严重超重分类指标法建立的模型研究１９８９年和１９９１年国内２０～４５岁之间成年人的健康和营养状况。结果表明，在相同的周期内中男性和女性低体重比例有所下降，相反低收入的比例有增加的趋势。成年人中正常体重的比例下降，超重和严重超重的比例有所增加。城市居民的中高收入的比例增加较为明显。同时发现，在农村低体重的比例逐渐减少。提示我国肥胖症和营养不良的发病率都在不断的增加。
The model of low body weight, normal body weight, overweight and severe overweight classification was used to study the health and nutritional status of adults between the ages of 20 and 45 in China in 1989 and 1991. The results showed that in the same cycle, the proportion of low weight among men and women decreased, while the proportion of low income tended to increase. The proportion of normal weight loss in adults, overweight and serious overweight ratio increased. Urban residents increased the proportion of high-income more obvious. Also found that the proportion of low-weight in rural areas gradually decreased. Prompted the incidence of obesity and malnutrition in China are constantly increasing.