Objective: To evaluate the effect of weight monitoring feedback intervention among primary school students, so as to provide the evidence for strengthening children's weight management. Methods: In October 2023, students from grades four to six in a primary school in Hangzhou City were selected and randomly assigned to a control group and an intervention group on a class-by-class basis. The included primary school students had their height and weight measured at a fixed time each week, and the results were fed back to their parents in the form of cards. The cards for the control group contained knowledge about healthy lifestyles, while those for the intervention group additionally included information on body mass index (BMI), BMI grouping, and BMI ranking. Overweight and obesity were determined according to the age- and gender-specific criteria in the Screening for Overweight and Obesity among School-aged Children and Adolescents. After a 9-month intervention period, the prevalence rates of overweight and obesity and lifestyle behavior data between the two groups before and after the intervention were compared by a generalized linear mixed model, in order to assess the effectiveness of the weight monitoring information feedback intervention. Results: The intervention group consisted of 368 students, including 208 boys (56.52%) and 160 girls (43.48%). The majority of students were 11 years, with 153 students accounting for 41.58%. The prevalence rate of overweight and obesity was 24.18%. The control group had 324 students, with 180 boys (55.56%) and 144 girls (44.44%). The predominant age was also 11 years, with 128 students accounting for 39.51%. The prevalence rate of overweight and obesity was 25.31%. Before the intervention, there were no statistically significant differences between the two groups in terms of gender, age, prevalence rate of overweight and obesity, eating habits, exercise situation, and sleep patterns (all P>0.05). After the intervention, there were significant interactions between group and time for the prevalence rate of overweight and obesity, the frequency of moderate-intensity exercise per week, and adequate sleep in the two groups (all P<0.05). The prevalence rate of overweight and obesity in the intervention group (OR=0.461, 95%CI: 0.252-0.845) was lower than that in the control group. The proportions of students in the intervention group who engaged in moderate-intensity exercise ≥4 times per week (OR=1.315, 95%CI: 1.033-1.675) and had adequate sleep (OR=1.402, 95%CI: 1.049-1.875) were higher than those in the control group. Conclusion Weight monitoring feedback can reduce the incidence of overweight and obesity among primary school students and has a certain improving effect on lifestyle behaviors such as exercise and sleep.

Objective:To investigate the differences between patients with small cell carcinoma of the cervix and other type of cervical cancer on clinicopathological characteristics,treatment,prognosis through the retrospective analysis,also study the prognostic factors in patients with SCCC.Methods:The patients with SCCC(63 cases,research group) and patients with Non-SCCC(60 cases,control group) such as squamous cell carcinoma and adenocarcinoma of cervix were chosen during May 2003 and June 2015 in department of obstetrics and gynecology,west China second university hospital.The clinical pathological and survival data were collected,sort out,checked and analyzed.Chi-square test or Fisher's exact probability method was used to compare the differences of clinical features between the two groups.The 5-year disease-free survival(DFS) rate and 5-year overall survival(OS) rate were generated using the Kaplan-Meier method.Univariate and multivariate analysis were applied to research the prognostic factors.Results:①The median age of the patients in research group was 40 years old,younger than control group whose median age was 44 years old (P =0.001).The rate of lymph node metastasis,parametrial infiltration,vascular involvement and positive surgical margins in research group were significantly higher than those of control group (P ＜ 0.05).There were no significantly differences between two groups in clinical symptoms,FIGO stage,therapeutic schedule.②In the survival analysis,the research group estimated 5-year overall survival (OS) rate (29.2％) and estimated 5-year disease-free survival rate (DFS)(26.6％) was significantly lower than those of the control group(82.6％,and 76.7％,respectively) P ＜ 0.05.③In the COX multivariate regression analysis,the results showed that the lymph node metastasis was the independent factor influencing overall survival rate and disease-free survival rate(HR =4.784、3.067,P ＜ 0.05).In addition,the tumor size was the independent factor influencing overall survival rate (HR =3.610,P ＜ 0.05),and advanced FIGO staging was the independent factor influencing disease-free survival rate (HR =2.793,P ＜ 0.05).Conclusions:The patients with SCCC were younger than other cervical cancer,and the clinical symptoms,cervical appearance,treatment between the two types are almost the same.However,The rate of lymph node metastasis,parametrial infiltration,vascular involvement and positive surgical margins in patients with SCCC were significantly higher than other cervical cancer,and the prognosis of the patients with SCCC was very poor.The main prognostic factors were lymph node metastasis,advanced FIGO stage and tumor size.