Objective: To analyze the trends of the frequency of meat, egg, and milk consumption among rural primary and junior high school students in central and western China covered by the Nutrition Improvement Program for Rural Compulsory Education Students (NIPRCES) from 2015 to 2023, so as to provide basis for formulating more targeted nutrition intervention policies and health education strategies. Methods: Using data from six rounds of monitoring and evaluation (2015-2021 and 2023), the study included 323 870 students from grade 3 to 9 across 22 provinces (autonomous regions and municipalities) in central and western China. The consumption frequencies of meat, egg, and milk over the past week were collected via questionnaires. The Cochran-Armitage trend test was used to analyze temporal trends, and multivariable Logistic regression models were employed to analyze factors associated with the frequency of meat, egg and milk consumption and to test for interaction effects between the year and gender, region, and grade level. Results: From 2015 to 2023, the proportion of students consuming meat, egg, and milk ≥1 time/day increased from 23.20 %, 10.71%, and 0.74% to 35.53%, 22.09%, and 26.63%, respectively. Trend tests indicated a significant upward trend for the daily intake of all three food categories for meat, egg and milk over the years ( Z =67.18, 64.90, 93.14, all P <0.01). Multivariable Logistic regression analysis showed that the daily meat intake was lower in the central region than in the western region ( OR=0.77, 95%CI =0.76-0.78), whereas the daily intake of eggs ( OR=1.19, 95%CI =1.17-1.22) and milk ( OR= 1.27 , 95%CI =1.24-1.29) was higher in the central region (all P <0.05). Compared with grade 3-4 students, junior high school students had lower daily intake of meat, eggs, and milk≥1 time/day ( OR =0.95, 0.77, 0.77, all P <0.05), with a declining trend as grade increased. Girls also had lower daily intake of meat, eggs, and milk ≥1 time/day than boys ( OR =0.95，0.93，0.91, all P < 0.05). Significant interactions were observed between year and region, as well as between year and grade (all P <0.05). Conclusion From 2015 to 2023, the NIPRCES improved the intake level of among rural students, but the situation of relatively insufficient intake of egg and milk among females, junior high school students and those in the western region still exists.

Objective:To develop a Knowledge-Attitude-Practice (KAP) Scale for Dietary Management During Hemodialysis and to test its reliability and validity.Methods:Based on the KAP theoretical framework, an initial version of the scale was developed through a literature review and expert consultations. A convenience sampling method was used to recruit hemodialysis patients from four hospitals in Suzhou in March 2024. Questionnaire item analysis and reliability and validity tests were conducted.Results:A total of 460 questionnaires were distributed and 438 valid responses were collected, with an effective response rate of 95.22%. The final scale included three dimensions (knowledge, attitude, and practice) with 34 items. Content validity at the scale level was 0.910, and the item level ranged from 0.800 to 1.000. Exploratory factor analysis extracted three common factors, with a cumulative variance contribution rate of 74.520%. Confirmatory factor analysis showed a good model fit. The total Cronbach's α coefficient of the scale was 0.971, and the Cronbach's αcoefficients for the three dimensions were 0.963, 0.933, and 0.934, respectively. The test-retest reliability coefficient was 0.839.Conclusions:The Knowledge-Attitude-Practice Scale for Dietary Management During Hemodialysis demonstrates good reliability and validity, making it a valuable tool for assessing the KAP level of dietary management in hemodialysis patients.

Objective:To develop a Knowledge-Attitude-Practice (KAP) Scale for Dietary Management During Hemodialysis and to test its reliability and validity.Methods:Based on the KAP theoretical framework, an initial version of the scale was developed through a literature review and expert consultations. A convenience sampling method was used to recruit hemodialysis patients from four hospitals in Suzhou in March 2024. Questionnaire item analysis and reliability and validity tests were conducted.Results:A total of 460 questionnaires were distributed and 438 valid responses were collected, with an effective response rate of 95.22%. The final scale included three dimensions (knowledge, attitude, and practice) with 34 items. Content validity at the scale level was 0.910, and the item level ranged from 0.800 to 1.000. Exploratory factor analysis extracted three common factors, with a cumulative variance contribution rate of 74.520%. Confirmatory factor analysis showed a good model fit. The total Cronbach's α coefficient of the scale was 0.971, and the Cronbach's αcoefficients for the three dimensions were 0.963, 0.933, and 0.934, respectively. The test-retest reliability coefficient was 0.839.Conclusions:The Knowledge-Attitude-Practice Scale for Dietary Management During Hemodialysis demonstrates good reliability and validity, making it a valuable tool for assessing the KAP level of dietary management in hemodialysis patients.

Objective:To describe the prevalence of food allergy among children aged 0-5 years in China and to explore related influencing factors.Methods:Multistage stratified random sampling method was used to collect data from 275 surveillance sites of the China National Nutrition and Health Survey of Chinese children and lactating mothers programs in 31 provinces (autonomous regions and municipalities) of China in 2016-2017. A total of 70 107 participants aged 0-5 years were included in this study. The study collected information of participants' demographic characteristics and food allergies by face-to-face questionnaire. The prevalence of food allergy was analyzed, using the complex data weighting method. The logistic regression models were used to analyze the influencing factors related to food allergy.Results:The overall prevalence of self-reported food allergy among children aged 0-5 years was 4.81%. Prevalence rates in infants aged 0-5 months, and 6-23 months and preschool children aged 2-5 years were 0.81%, 4.68% and 5.26%, respectively. The results of logistic analysis showed that there was a significantly positive correlation between factors including children from 6 months to 5 years old, urban area, southwest area, first-born, mothers with college education or above, and the prevalence of food allergy in children. Shrimp, poultry eggs, crab shellfish, fruit, milk and fish appeared the common allergic foods in children aged 0-5 years, with prevalence rates of self-reported food allergy as 1.55%, 1.25%, 0.99%, 0.97%, 0.87% and 0.86%, respectively. The proportion of single food allergy in children with allergies was 69.85%.Conclusions:Among children aged 0-5 years, the prevalence of self-reported food allergy increases with age, in China. Foods that is prone to allergies include fish, shrimp, crab, shellfish, poultry eggs, milk and fruits, etc. Most allergies were only caused by single food in children, under observation.

Objective:To investigate the effect of the trace element zinc (Zn) on apoptosis and cell proliferation in palate shelvesduring the fusion phase, and to screen candidate genes of the Zn-finger special protein (Sp) family that were differentially expressed between the cleft palate and the normal palate to explore the mechanism of Zn in the development of cleft palate.Methods:Zn-rich, normal-Zn, low-Zn, and Zn-deficient diets were fed to female mice and, for the resultant fetuses, paraffin slices of their heads were made at embryonicdays 14.5 and 16.5. Using terminaldeoxynucleotidyltransferase-mediated dUTP nick-end labeling, the number of apoptotic cells in the palatal shelves was counted, and cell proliferation activity was detected using proliferating cell nuclear antigen staining. Total RNA from the palatal shelves of fetal mice was extracted from the Zn-rich diet, normal Zn-diet, and Zn-deficient-diet groups. We used microarray analysis to examine the expression of genes to identify intergroup differential gene expression and polymerase chain reaction tests to validate the results.Results:At ED14.5, the incidence of cleft palate in the regular zinc group, zinc rich group, low zinc group, and zinc deficient group was 8% (3/36), 2% (1/39), 29% (12/41), and 39% (15/38), respectively. The HE staining results at ED14.5 showed that both the left and right palatal processes in the zinc group had been lifted up and were in contact and connected with each other. In the zinc deficiency group, the left and right palatine processes remained vertically downwards on both sides of the tongue, ultimately forming cleft palate; In the low zinc group, the left and right palatine processes were raised but not in contact, ultimately resulting in cleft palate. There is no significant difference between the zinc rich group and the regular zinc group. At ED14.5, the positive rates of proliferative cells in the palatal process of fetal mice in the regular zinc group (80.29% ± 7.39%) and the zinc rich group (87.69% ± 6.62%) were significantly higher than those in the zinc deficient group (56.05% ± 16.13%) and the low zinc group (56.22% ± 9.61%) ( t=4.32, P<0.05). The apoptosis index of fetal rat palatal process cells in the zinc deficient group (38.80% ± 3.10%) and the low zinc group (28.80% ± 6.19%) were significantly higher than those in the regular zinc group (16.80% ± 1.82%) ( t=19.35, P<0.001; t=5.81, P<0.001). There were 663 differentially expressed genes in the zinc rich group and the zinc deficient group, with 513 up-regulated genes and 150 down-regulated genes, among which Sp5 was found to be located. The real time PCR results showed that compared with the regular zinc group (2.22 ± 0.36), the expression level of Sp5mRNA in the palatal process tissue of the zinc deficient group (1.23 ± 0.38) significantly increased ( P<0.05), while the zinc rich group (3.68 ± 0.90) significantly decreased ( P<0.05). Conclusions:Trace element Zn content was found to be closely related to the occurrence of cleft palate in mice offspring, with a lack of Zn leading to cleft palate.

Objective:To compare the effectiveness and safety of all-suture anchors and single-row suture anchors for rotator cuff repair.Methods:A prospective randomized controlled study was conducted to analyze the clinical data of 50 patients with rotator cuff tear admitted to Second Affiliated Hospital of Zhejiang University School of Medicine between July 2019 and September 2021. They were divided into two groups according to the random table: 25 patients to receive repair with single-row suture anchors (control group) and the other 25 with all-suture anchors (trial group). Visual Analogue Scale (VAS), University of California, Los Angeles (UCLA) shoulder score, American Shoulder and Elbow Surgeons (ASES) score and shoulder range of motion were compared between the two groups before surgery, at 3 months after surgery and at the last follow-up. The rotator cuff retear rate of the two groups was evaluated according to Sugaya classification at 6 months after surgery. Breakage or anchor loosening during surgery, healing of incision and presence of infections or neurological complications after surgery, and change of the anchor position and periosteal reaction at the insertion site at 3 and 6 months after surgery were observed in the two groups.Results:A total of 50 patients with rotator cuff tear were involved in this study, including 17 males and 33 females, aged 40-73 years [(59.1±10.3)years]. All patients were followed up for 6-9 months [(6.7±1.0)months]. The differences in VAS, UCLA shoulder score, ASES score, and shoulder range of motion between the two groups were statistically insignificant before surgery (all P>0.05). The VAS at 3 months after surgery and at the last follow-up in the control group was 2.0 (2.0, 4.0)points and 2.0 (0.0, 2.0)points, respectively, with no statistical differences from 2.0 (2.0, 2.0)points and 2.0 (0.0, 2.0)points in the trial group (all P>0.05). In the control group, the UCLA shoulder score and ASES score at 3 months after surgery and the ASES score at the last follow-up were (25.1±4.5)points, 78.8 (71.6, 85.8)points and 85.8 (85.8, 93.0)points, respectively, with no statistical differences from (26.8±4.7)points, 85.8 (82.3, 85.8)points, and 92.8 (85.8, 100.0)points in the trial group (all P>0.05). At the last follow-up, the UCLA shoulder score of the control group was (29.2±3.9)points, which was lower than that of the trial group [(31.6±2.4)points] ( P<0.05). The differences in shoulder motion between the two groups at 3 months after surgery and at the last follow-up were not statistically significant (all P>0.05). The VAS, UCLA shoulder score, and ASES score at 3 months after surgery and at the last followup in both groups were significantly improved compared to their preoperative values (all P<0.05); further improvements were observed at the last follow-up compared with those at 3 months after surgery (all P<0.05). The rotator cuff retear rate at 6 months after surgery was 16.7% (4/24) in the control group, not statistically different from 4.3% (1/23) in the trial group ( P>0.05). There were no incidences of anchor loosening or breakage during surgery. All incisions were healed after surgery, with no infections or neurological complications. No grades II to III periosteal reactions at the anchor insertion sites were observed in either group at 3, 6 months after surgery. The percentage of patients with grade 0 periosteal reaction at the anchor insertion site at 3 months after surgery was 4.2% (1/24) in the control group, significantly lower than 30.4% (7/23) in the trial group ( P<0.05). Conclusion:All-suture anchors and single-row suture anchors are effective in rotator cuff repair, but the former results in better shoulder function and fewer periosteal reactions in the anchor insertion site in the early stage.

Objective: To understand the public health emergency response capacity in primary and secondary schools, and to explore the problems and challenges in the prevention and control of public health emergency in primary and secondary schools for specific strategies. Methods: By using the stratified group sampling method, a questionnaire survey on general situation, knowledge, attitude and training, as well as public health emergencies response capacity among 2 988 teachers or leaders responsible for school emergency response in primary and secondary schools from Beijing, Chongqing and Yunnan. Results: Participants varied on their positions, titles, educational background and knowledge accuracy. Higher knowledge accuracy was associated with higher educational background ( χ 2=50.73-203.36, P < 0.05 ). The implementation of regular public health emergency related programs was poorly conducted in high schools (50.0%). Urban schools (42.0%) had higher proportion of qualified health care professionals than rural schools (18.2%), and private schools (48.5%) was higher than public schools (24.7%). The primary challenges included the shortage of guidance from professionals and the lack of related testing equipment (84.91%, 74.03%). Conclusion Although the ability of emergency handling of public health emergencies in schools in the three regions is advancing with the times, there are still many deficiencies, some omissions in the mastery of knowledge. It is suggested to inerease pre service and special training of school health work CDC should strengthen technical guidance and work supervision of infectious disease management in schools.

Hepatotoxicity is a common side effect for patients treated with gefitinib, but the related pathogenesis is unclear and lacks effective predictor and management strategies. A multi-omics approach integrating pharmacometabolomics, pharmacokinetics and pharmacogenomics was employed in non-small cell lung cancer patients to identify the effective predictor for gefitinib-induced hepatotoxicity and explore optional therapy substitution. Here, we found that patients with rs4946935 AA, located in Forkhead Box O3 (FOXO3) which is a well-known autophagic regulator, had a higher risk of hepatotoxicity than those with the GA or GG variant (OR = 18.020, 95%CI = 2.473 to 459.1784, P = 0.018) in a gefitinib-concentration dependent pattern. Furthermore, functional experiments identified that rs4946935_A impaired the expression of FOXO3 by inhibiting the promotor activity, increasing the threshold of autophagy initiation and inhibiting the autophagic activity which contributed to gefitinib-induced liver injury. In contrast, erlotinib-induced liver injury was independent on the variant and expression levels of FOXO3. This study reveals that FOXO3 mutation, leading to autophagic imbalance, plays important role in gefitinib-induced hepatotoxicity, especially for patients with high concentration of gefitinib. In conclusion, FOXO3 mutation is an effective predictor and erlotinib might be an appropriately and well-tolerated treatment option for patients carrying rs4946935 AA.

Objective: To investigate the epidemiological characteristics of waist circumference (WC) and abdominal obesity (AO) among Chinese adults aged 18 and above. Methods: Data were collected from China National Nutrition and Health Surveillance in 2010-2012. Multi-stage stratifies proportion to the population cluster random sampling method was conducted to determine 120 265 subjects aged 18 and above at 150 counties in 31 provinces in China mainland. WC was determined for all subjects, and AO was judged according to the "Healthy Adult Weight Determination" (WS/T 428-2013). Using the demographic data published by the National Bureau of Statistics of China in 2009, we performed complex sampling weighted treatment to calculate the WC, AO rate and 95%CI. Results: The mean WC of Chinese men aged 18 and above was 82.8 cm, which of urban men (84.1 cm) was higher than that of rural men (81.4 cm) (P<0.001). The average WC of women was 78.5 cm. There was no statistical difference between urban (78.7 cm) and rural women (78.4 cm) (P=0.965). With the increase of education level, the mean WC of male increased gradually from 81.2 cm to 84.3 cm (P<0.001), and the mean WC of female decreased from 80.3 cm to 74.3 cm (P<0.001). With the family income rose, the mean WC of men increased gradually from 81.9 cm to 84.7 cm (P<0.001), and the mean of WC of women decreased from 78.8 cm to 77.6 cm (P<0.001). The AO rate was 25.7% (95% CI: 23.7%-27.7%) in adults aged 18 years and older. The AO rate in urban males (29.8% (95%CI: 26.5%-33.1%)) was significantly higher than that of rural males (22.3% (95%CI: 19.3%-25.2%)) (P=0.001). There was no significant difference in the female AO rate between urban (25.6% (95%CI: 22.8%-28.4%)) and rural areas (25.1% (95%CI: 22.2%-27.9%)) (P=0.772). With the increase of the educational level, the AO rate of men increased from 20.1% (95%CI: 18.0%-22.1%) to 32.6% (95%CI: 28.6%-36.6%) (P<0.001), the rate of women decreased gradually from 31.3% (95%CI: 28.7%-33.9%) to 13.5% (95%CI: 10.9%-16.1%) (P<0.001). With the increase of family income, the AO rate of male increased gradually from 23.3% (95%CI: 20.7%-25.9%) to 31.8% (95%CI: 27.6%-36.1%) (P<0.001), the rate of female decreased from 26.5% (95% CI: 24.2%-28.7%) to 20.0% (95% CI: 17.2%-22.8%) (P<0.001). Conclusion The prevalence of AO among Chinese residents aged 18 years and above was high, and there were significant differences in WC and AO rate between men and women under different age, region, educational level and family income level.

Objective: To investigate the average dietary nutrients intake status among Chinese residents between 2010-2012, and to compare the difference between rural and urban areas. Methods: Data were collected from Chinese Nutrition and Health Surveillance between 2010-2012. Based on regional features and economic development levels, China's county-level divisions were classified into four types: big city, medium and small city, ordinary rural area and poor rural area. A total of 62 857 valid subjects, including 14 017, 16 539, 19 910 and 12 391 respondents in each group separately, were enrolled by Multi-stage stratified proportion to the population cluster random sampling method. The dietary survey was conducted by recalling the 24 h diet in 3 consecutive days and weighting condiment. The daily dietary intake of energy, macronutrient, dietary fiber, vitamin, and mineral substance per resident were calculated based on China Food Composition. Results: The average energy intake per resident in Mainland China was 9 047.1 kJ, with highest (9 719.3 kJ) in poor rural area and lowest (8 490.4 kJ) in medium and small city. The average dietary protein intake was 64.2 g, with highest (73.9 g) in big city and lowest (60.7 g) in poor rural area. The average dietary fat intake was 79.7 g, with highest (89.4 g) in big city and lowest (70.6 g) in poor rural area. The average intake of micronutrients of vitamin A, vitamin B₂, vitamin C, calcium, iron, phosphorus, zinc was separately 441.9 μg, 0.8 mg, 80.1 mg, 364.3 mg, and 21.4 mg; which were lower than Chinese Dietary Reference Intakes. The percentage of population whose average intake of vitamin A, vitamin B₂, vitamin C, calcium were lower than estimated average requirement was separately 77.0%, 90.2%, 67.7%, and 96.6%. Conclusion The supply of 3 macronutrient was sufficient in mainland China. However, it was a common issue that there was excessive intake of fat but deficient intake of micronutrients such as vitamin, calcium, iron and zinc. There were differences in nutrition intake among big city, medium and small city, ordinary rural area and poor rural area.