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目的分析1989-2011年广西城乡18~65岁城乡居民膳食维生素A摄入状况及变化趋势。方法利用1989-2011年“中国健康与营养调查”9轮调查数据,选取广西18~65岁城乡居民作为研究对象。以膳食总维生素A、胡萝卜素和视黄醇每日平均摄入量作为维生素A摄入状况的评价指标,分析1989-2011年广西城乡居民膳食维生素A摄入状况、视黄醇占总维生素A摄入的比例及总维生素A达到推荐摄入量(RNI)比例的人群分布变化趋势。结果 1989-2011年间,广西城乡居民膳食总维生素A、胡萝卜素、视黄醇摄入呈上升趋势,膳食总维生素A从1989年的789.07μgRE/d上升至2011年的1 306.57μgRE/d;视黄醇在总维生素A摄入中的比例,2006年以前城乡呈上升趋势,2006年后城乡呈下降趋势,城乡差距逐步缩小;膳食维生素A大于等于90%RNI的人群比例从1989年的40.9%上升到2011年的70.0%;膳食维生素A达到80%RNI、60%RNI、小于60%RNI的人群比例分别从1989年的6.6%、15.1%、30.4%下降到2011年的5.1%、8.3%、15.2%。结论 23年间,广西城乡居民膳食维生素A、胡萝卜素、视黄醇呈上升趋势,城乡摄入差别在缩小,但农村维生素A摄入不足的人群高于城镇,需根据城乡维生素A摄入的异同点制定相应干预措施。
Objective To analyze the status of dietary vitamin A intake and its changing trend between urban and rural areas in Guangxi from 1989 to 2011. Methods The data of nine rounds of survey on Chinese health and nutrition from 1989 to 2011 were used to select urban and rural residents aged 18-65 years in Guangxi as study subjects. Dietary total vitamin A, carotene and retinol daily average intake of vitamin A intake as an assessment indicator, analysis of urban and rural residents in 1989 and 2011, dietary intake of vitamin A, retinol total vitamin A The proportion of intake and total vitamin A to reach the recommended intake (RNI) ratio of population distribution trends. Results From 1989 to 2011, the dietary intake of total vitamin A, carotene and retinol in Guangxi urban and rural residents showed an upward trend. The total dietary vitamin A increased from 789.07 μgRE / d in 1989 to 1 306.57 μgRE / d in 2011. The proportion of total alcohol in total intake of vitamin A in urban and rural areas before 2006 was on an upward trend, urban and rural areas after 2006 showed a downward trend, urban and rural areas gradually narrowing the gap; dietary vitamin A greater than or equal to 90% RNI population from 1989 to 40.9% To 70.0% in 2011; the proportion of people with dietary vitamin A reaching 80% RNI, 60% RNI and less than 60% RNI dropped from 6.6%, 15.1% and 30.4% in 1989 to 5.1% and 8.3% respectively in 2011, , 15.2%. Conclusion During the 23 years, the dietary vitamin A, carotene and retinol in urban and rural areas of Guangxi showed an upward trend and the difference between urban and rural areas is decreasing. However, the population with insufficient vitamin A intake in rural areas is higher than that in urban areas. According to the similarities and differences of urban and rural vitamin A intake, Point to develop appropriate interventions.