Trend analysis on dietary diversity and quality among urban residents with health examination in Beijing from 2008 to 2018
Objective To explore the long-term trend of dietary diversity and quality among Beijing urban residents with health examinations from 2008 to 2018.Methods The urban residents who completed physical examination questionnaires in a physical examination center in Beijing between 2008 and 2018 were selected.A semi-quantitative food frequency questionnaire was used to calculate the daily intakes of major food groups.The scores and index percentages of diet diversity score-9 classification(DDS9)and Chinese diet balance index(DBI_16)were standardized to the gender and age composition of urban residents aged 20 and above in Beijing from the 2010 national census data,and meta-regression analysis was used to explore the long-term trend.Results Among the 224 178 subjects,the standardized DDS9 score increased by 0.2 over 11 years,with the qualified rate rising from 5.1％to 7.4％(P＜0.001).From 2008 to 2018,DBI_16 total score for urban residents in Beijing showed an increasing trend(β=0.16,P＜0.001),while the corresponding qualified rate decreased from 4.9％to 3.8％.The moderate or severe surplus of food intake rate increased from 43.7％to 54.3％(β=1.07,P＜0.001),and the qualified rate of the low bound score increased from 79.3％to 83.1％(β=0.35,P＜0.001),but no significant long-term trend was observed in any rate of dietary quality distance(P＞0.05).Conclusions From 2008 to 2018,the insufficient dietary intake of Beijing's urban residents improves,while the excessive dietary intake worses year after year,and the average dietary diversity is poor.Intervention measures,such as promoting a balanced diet and improving dietary quality,should be implemented to guide residents toward dietary diversity.
NETL
NSTL
万方数据
