Abstract
To analyze the age distribution of nutrition and health knowledge level of Chinese residents aged 18-64. A total of 102 398 residents aged 18-64 were selected from 302 survey sites in China by multi-stage cluster random sampling method, a total of 98 567 respondents were included in the study. Both mean and rate were calculated by complex sampling weighting. The nutrition and health knowledge score of residents aged 18-24, 25-34, 35-44, 45-54 and 55-64 years old in China were(65.1±11.4) points, (64.6±11.7) points, (64.7±12.0) points, (62.2±12.8) points and(59.5±13.3) points. The nutrition and health knowledge awareness rates were 20.3%, 19.1%, 20.3%, 16.9% and 12.1%, respectively(P<0.001). A decreasing trend in all dimensions and overall nutrition and health knowledge with increasing age was found(β<0, P_(trend)<0.001). This trend was also reflected across gender or regions. While the trend of nutrition and health knowledge level with age varies with different literacy levels. Differences in knowledge points with positive response rates <30% by age groups. The level of nutrition and health knowledge among Chinese adult residents of all ages is relatively low in 2021, but the knowledge shortcomings are different.
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