Under the current circumstance that more and more students are being recruited in universities,ways have to be explored to promote the development of our major.The following three points including strength in construction of teaching staff,management of teaching quality and active participation in administration of students are suggested to be attempted,in combination with many other good ideas.

Based on our long-time teaching practice,we tried to explore some measures of the teaching innovation about maternal and child health care,in terms of the innovation of course system,the compiling of teaching materials and the updating of teaching methods and skills.Through the discussion,we aimed to enhance our students' integrated qualities,cultivate and bring up more and more capable medical students of new-pattern fit for the social demands.

Objective To explore the effect of babies’ nutritional status on their growth and intelligence about 3 years old. Method With stratified random sampling,according to the data of height and weight,obtained from general survey of nutritional status in all infants aged 0-1 in one county of Fuyang town,Anhui Province in April 2004,we classified the infants into three groups,corresponding to≥ x + s,

Abstract Unhealthy eating behaviors among adolescents are common, and psychological behavior problems are prominent. The paper examines the status and associations underlying unhealthy eating behaviors and psychological behavior problems in adolescents from border multi ethnic areas, and further discusses the importance of research in border area involving multi ethnic adolescents, and highlights its significance in the context of constructing healthy schools in border areas,so as to provide a basis for promoting effectively healthy school environments in border areas of China.

Objective: To describe digital media use in college students during the coronavirus disease 2019(COVID-19) outbreak. Methods: A structured self-administered electronic questionnaire was designed and admin istered during February 4 to 12, 2020, collecting information on the use time of digital media and anxiety symptoms of college students in China during the COVID-19 outbreak. Data was analyzed by Chi-square test, univariate and multivariate Logistic regression models. Results: A total of 11 787 university students were recruited. The detection rate of anxiety symptoms was 17.8%. The percentages of screen time ≤2, >2-4 and >4 h/d were 21.3%, 31.4% and 47.3%. The proportions of mobile phone use time ≤2, >2-4 and >4 h/d were 14.6%, 33.2% and 52.3%. The proportion of browsing information regarding COVID-19 ≤1, 1-2 and >2 h/d were 66.6%, 19.4% and 13.9%. The results of Logistic regression analysis revealed that the detection rate of anxiety symptoms was lower among the students having 2-4 h/d of screen time(OR=0.70, 95%CI=0.61-0.81), but higher among the students having more than 4 h/d of screen time(OR=1.13, 95%CI=1.00-1.28) compared with those having ≤2 h/d of video usage time. Compared with the mobile phone usage ≤2 h/d group, the detection rate was lower among >2-4 h/d group(OR=0.78, 95%CI=0.66-0.91). However, anxiety symptoms were more likely to occur in the group of > 4 h/d(OR=1.20, 95%CI=1.04-1.39). The detection of anxiety symptoms was higher in the group with more browsing time. The OR for anxiety symptoms detection rate was 1.55(1.38-1.75) among the students with >1-2 h/d of browsing information regarding COVID-19 and 2.15(1.89-2.44) among the students with >2 h/d of browsing information regarding COVID-19 compared with those with ≤1 h/d of browsing information regarding COVID-19. Conclusion During the epidemic period, the use of >2-4 h/d digital media helps to reduce the occurrence of anxiety symptoms. But the use of computers and mobile phones for more than 4 h/d is associated with higher level of anxiety symptoms among college students. Less screen time spent on fact-checking on COVID-19 might help reduce anxiety sympotoms among college students.

Objective: To determine the possible relations between hair cortisol concentration (HCC) as a biomarker of chronic stress and childhood overweight and obesity. Methods: Children from grade 1 to 3 from 2 primary schools in Bengbu were invited to participate in the study; and those who suffer from mental disorders, endocrine diseases and those who took hormone drugs were excluded. Parental questionnaire was implemented to collect information on physical activity, screen time, sleep duration, sugar-beverage consumption, as well as socio-economic status. Height and weight were examined. Eligible hair samples from 1 263 children (598 boys and 665 girls) were obtained, and the cortisol content was determined. Multivariate logistic regression model analysis was recruited to examine the association between HCC quartiles and overweight and obesity among boys and girls, respectively. Results: HCC in P₅₀ (P₂₅-P₇₅) among girls and boys was separately 11.86 (10.57-13.15) and 11.71 (10.54-13.09) µg/kg (Z=-0.886, P=0.376); HCC in P₅₀ (P₂₅-P₇₅) among non-overweight, overweight and obesity boys was separately 11.62 (10.45-12.82), 12.24 (10.88-13.55) and 12.30 (10.99-13.53) µg/kg (χ²=8.24, P=0.016); HCC in P₅₀ (P₂₅-P₇₅) among non-overweight, overweight and obesity girls was separately 11.35 (10.06-12.62), 12.07 (11.04-13.21) and 12.59 (11.12-13.63) µg/kg (χ²=36.16, P<0.001). After age, physical activity, screen time, sleep duration, sugared beverages and socio-economic status adjusted, compared with HCC in Q1 level, girls whose HCC in Q2, Q3 Q4 level had higher rates in overweight, with OR (95%CI) at 1.10 (1.04-3.32), 2.59 (1.51-4.45) and 3.16 (1.79-5.57), respectively. Girls with HCC in Q3 and Q4 level had higher rates in obesity, with OR (95%CI) at 2.22 (1.16-4.26) and 5.62 (3.04-10.41). Among boys, highest quartiles in HCC was risk factor for overweight, OR (95%CI) was 2.14 (1.18-3.90). Conclusion Hair cortisol had a significant relation with overweight and obesity in 6-9 years old childhood especially among girls.

Abstract Vertebral column defects can have adverse effects on the physical and mental health of children and adolescents. Early screening and diagnosis is conducive to the correction of the disease, which can effectively slow down or stop the process of abnormal spinal curvature in children and adolescents. However, in terms of cost-effectiveness, there are different opinions around the world on the inclusion of school screening for abnormal spinal curvature into routine health services. This article reviews the concept and classification of vertebral column defects in children and adolescents, the epidemic situation, screening methods and significance by consulting the relevant literature at home and abroad, so as to provide reference for the prevention and treatment of the disease.

Objective To describe the epidemiological characteristics on the supplement of folic acid in progestation and early pregnancy,and to probe the protective effects of supplement of folic acid in early pregnancy against pregnant depression,in Ma’anshan city,Anhui province. Methods In this cohort study,5 150 subjects who had their first antenatal examination at Ma’anshan Maternal and Child Care Centers were recruited under informed consent,from October 2008 to October 2010. All the information were collected through questionnaires in the first,second and third trimesters respectively. A“Center for Epidemiological Studies Depression Scale(CES-D)”was used to assess the mood of depression in the second questionnaire. Single factor analysis and the unconditional multivariate logistic regression were applied to analyze the association of supplement folic acid in peri-conceptional period and pregnancy depression. Results In the study,the prevalence of those who had never taken the supplement folic acid but only the supplement folic acid in progestation and supplement in the first-trimester,or supplement in the peri-conceptional period were 27.3%,0.5%,27.4%and 17.9%,respectively. The incidence of pregnancy depression was 4.8%(247/5 150). Data from logistic regression analysis showed that,supplement of folic acid only in the first-trimester or in the peri-conceptional period were negatively associated with pregnancy depression even after adjustment for potential confounders. The adjusted odds ratio were 0.63(95%CI:0.44-0.90) and 0.61(95%CI:0.39-0.95)respectively. Conclusion Supplement of folic acid in peri-conceptional period could be a preventive factor for pregnancy depression.

Objective: To analyze the association between non-school sedentary time and myopia among primary and secondary school students with different levels of physical activity, so as to provide data for precise measures to prevent and control myopia. Methods: From September to December 2019, stratified cluster sampling was used to select 7 872 primary and secondary students in grades 4 to 12, middle and high school students from Hefei, Suzhou, Chizhou and Wuhu Cities in Anhui Province. Face-to-face questionnaires and vision examinations were conducted to collect demographic information, physical activity time, sedentary study time and visual health status. Potential categories were analyzed for different types of physical activity time, and Logistic regression was used to assess the relationship between non-school sedentary time and myopia at different levels of physical activity. Results: A total of 2 976 primary and secondary school students were found with high physical activity levels and 4 896 primary and secondary school students with low physical activity levels. The proportion of low physical activity was higher in girls than in boys (68.7% vs . 55.6%), and the differences were statistically significant ( χ 2=143.97, P <0.01). The overall screening myopia rate was 48.2%, with statistically significant differences among female students (53.0%) compared with male students (43.3%), urban students ( 51.8 %) compared with rural students (44.5%), and longer non-school sedentary time students (60.6%) compared with average (45.1%) and shorter (42.1%) non-school sedentary time students, and the differences were statistically significant ( χ 2=73.15, 41.96 , 161.74, P <0.01). Adjusting for confounders such as residence, grade, gender, age, father s education, mother s education, and body mass index (BMI), multivariate Logistic regression analysis revealed that prolonged after-school sedentary study was positivety correlated with myopia among primary and secondary school students of low physical activity levels ( OR=1.52, 95%CI=1.27-1.83, P <0.01), and there was no statistical association between after-school sedentary time and myopia in primary and secondary school students with high physical activity levels ( P >0.05). Conclusion Attention should be paid to non-school sedentary time for primary and secondary school students with low physical activity levels. And students who spend a lot of time sitting outside of school should be encouraged to maintain high physical activity levels to reduce the risk of myopia.

Abstract In recent years, much attention has been paid to recess activity in school and its impacts on child and adolescent health. Students spent most of their time in schools, thus recess offers children the opportunity to be physically active, which is beneficial for their cognitive, physical, social, and emotional well being. The review mainly discusses the impact of recess activity on child physical and mental health, including obesity, myopia, cognition and social contact, so as to provide a theoretical basis for creating school recess activities conducive to the health of children and adolescents.