A population-based survey of the prevalence of self-reported acute gastrointestinal illness in Zhejiang Province, China.

Acute gastrointestinal illness (AGI) is a prevalent public health concern worldwide. This study investigated the magnitude, distribution and burden of self-reported AGI among residents of Zhejiang Province, China. A face-to-face household survey was conducted using a multi-stage stratified random sampling method in 10 counties in Zhejiang Province between July 2018 and June 2019. In total, 12,021 participants were recruited. The prevalence of AGI 28 days after standardization was 1.8% (95% confidence interval (CI), 1.6-2.1), with an incidence rate of 0.24 episodes of AGI per person-year and an estimated 14 million cases of AGI in Zhejiang Province. Univariate and multivariable analyses showed a higher AGI prevalence among people who performed housework and were unemployed in summer and autumn among respondents living in western or northern cities (p < 0.05). More than 50% of AGI cases were attributed to the consumption of contaminated food. The disease burden caused by AGI in Zhejiang Province was approximately 975 million Chinses yuan (CNY). These results indicated that the disease burden of AGI in Zhejiang Province should be addressed and highlights the need for an improved active surveillance system of foodborne diseases to assess the impact of AGI on society and health.

The Rural-Urban Difference in BMI and Anemia among Children and Adolescents.

There is growing concern over the double burden of over- and under-nutrition in individuals, especially in children and adolescents, which could dwarf their growth and development. This study aims to explore the rural-urban difference in BMI and anemia among children and adolescents. A stratified cluster sampling technique was employed. Dietary data were collected through interviews, and anthropometric values were measured. There were 1534 children and adolescents who participated in this study, including 775 male and 759 female participants. The prevalence of obesity among children living in a city, township and rural area was 10.3%, 8.5% and 5.5%, and that among adolescents was 1.4%, 2.9% and 2.8%. The prevalence of anemia among children and living in a city, township and rural area was 4.3%, 2.5% and 4.5%, while that among adolescents was 6.1%, 3.7% and 11.3%, respectively, with significant difference (χ² = 10.824, p = 0.004). The prevalence of being overweight, obesity and anemia was significant when comparing children with adolescents (χ² = 37.861, p = 0.000; χ² = 19.832, p = 0.000; χ² = 8.611, p = 0.003). Findings of this study indicate the double burden of malnutrition in Zhejiang province, characterized by a high prevalence of being overweight, obesity and anemia among children and a high prevalence of anemia among adolescents living in townships.

[Exposure assessment on dietary lead and cadmium of residents in three areas of Zhejiang province from 2009 to 2010].

OBJECTIVE: To assess the safety of dietary lead and cadmium intake in 3 areas of Zhejiang province. METHODS: Using the total dietary study method, the study was conducted in 3 regions which represented coastal, city and rural areas in Zhejiang province from 2009 to 2010. The dietary survey was conducted on the residents (512 subjects) and the categories and volume of food consumption were obtained. The analytical food samples were obtained by food consumption survey, food aggregation, food sampling and preparation. The food samples were detected by inductively coupled plasma mass spectrometry (ICP-MS). The safety of dietary lead and cadmium intake was evaluated. RESULTS: The median dietary lead intake (P50) in Zhejiang province was 37.8 µg/d. The 97.5% dietary lead intake (P97.5) was 72.3 µg/d. The P50 dietary lead intakes of different age and gender groups ranged from 23.2 to 44.2 µg/d. The P97.5 dietary lead intakes of different age and gender groups ranged from 34.2 to 88.1 µg/d. The P50 dietary cadmium intake in Zhejiang province was 9.6 µg/d. The P97.5 dietary cadmium intake was 15.7 µg/d. The P50 dietary cadmium intakes of different age and gender groups ranged from 6.4 to 11.4 µg/d, accounting 15.6% - 42.6% of PTMI (provisional tolerable monthly intake, 25 µg/kg). The P97.5 dietary cadmium intakes of different age and gender groups ranged from 10.5 to 21.4 µg/d, accounting 27.5% - 77.6% of PTMI. Vegetable (11.3 µg), cereal (11.0 µg) and meat (9.8 µg) were the first three food sources which accounted for 84.9% of dietary lead (P50: 37.8 µg/d). Cereal (3.6 µg), vegetable (2.1 µg) and legume (0.9 µg) were the first three food sources which accounted for 68.8% of dietary cadmium (P50: 9.6 µg/d). CONCLUSION: Dietary lead and cadmium intakes of most residents in 3 areas of Zhejiang province as well as the average level are safe.

[Changes of serum IL-1, IL-2R and TNF-alpha levels in divers after 150 m Heliox saturation -182 m excursion in the open sea diving].

OBJECTIVE: To observe the change of the serum IL-1, IL-2R and TNF-alpha levels in divers after deep saturation in the open sea diving. METHOD: Eight divers experienced 150 in Heliox saturation -182 in excursion diving. Serum levels of IL-1, IL-2R and TNF-alpha level before and after diving were measured by ELISA. RESULTS: There was no significant change of serum TNF-alpha level after saturation diving, but serum levels of IL-1, IL-2R increased significantly after saturation diving. CONCLUSION: Deep open sea saturation diving had significant effects on serum IL-6, IL-2R levels of the divers.