The Mediating Effect of Body Dissatisfaction in Association between Obesity and Dietary Behavior Changes for Weight Loss in Chinese Children.

Objective: The aim of this study was to analyze the mediating effect of body dissatisfaction in correlation between obesity and dietary behavior changes for weight loss (DBCWL).

Methods: A total of 680 primary and middle school students were included in this study. Their body height, weight, and waistline were effectively measured, and they were also evaluated to assess their body dissatisfaction, perception of dietary behaviors, and DBCWL.

The Influence of Secular Trends in Body Height and Weight on the Prevalence of Overweight and Obesity among Chinese Children and Adolescents.

Objective: To explore the influence of secular trends in body height and weight on the prevalence of overweight and obesity among Chinese children and adolescents.

Methods: The data were obtained from five cross-sectional Chinese National Surveys on Students' Constitution and Health. Overweight/obesity was defined as BMI-for-age Z-score of per the Wold Health Organization (WHO) reference values.

[Analysis on awareness of obesity risk factors among children and adolescents].

Objective: To analyze the awareness rate of obesity risk factors among children and adolescents, and to provide the basis for preventing their obesity.

Methods: The students selected by using stratified cluster sampling method, were measured for the body height, weight, and waist circumference, and were surveyed for the awareness rate of obesity risk factors by using the questionnaire. The distribution characteristics of awareness on obesity risk factors were analyzed.

An objective measure to evaluate actual body shape among children and adolescents in China.

Objective: The purpose of this study was to explore an objective measure to assess actual body shape of children and adolescents in China.

Methods: Based on the Chinese National Survey on Student's Constitution and Health (CNSSCH) in 2005, 210 927 children and adolescents' (7-18 years) body height, body weight, chest circumference, sitting height, chest circumference-height ratio, chest circumference-sitting height ratio, chest circumference-low limb ratio, and sitting height-low limb ratio measurements were used to develop an objective measure by using transformation variables and explored factor analysis (EFA). Discrimination power of the objective measure was evaluated based on BMI reference and Receiver Operating Characteristic curves (ROC).

[Association between early age at menarche and blood pressure in Chinese girls aged 7 to 17 years].

Objective: To investigate the association between early age at menarche and blood pressure in Chinese girls aged 7 to 17 years.

Methods: A total of 76 869 girls aged 7 to 17 years old were selected from the national physical fitness and health research in 2010, and probit analyses were used to calculate the average age of menarche for each province. Girls whose age were lower than the P 10 of age at menarche were judged as early age at menarche, and matched with two selected participant without menarche based on the age and the same urban or rural areas.

[Association between early onset of menarche and anthropometry measurements among adolescent girls in China].

Objective: To explore the association between early menarche with anthropometry measurements among adolescent girls in China.

Methods: Research material was selected from the data of 2010 Chinese National Surveys on Students Constitution and Health. Probability unit regression method was used to calculate the age of 10th percentile (P 10) at menarche and menarche age before the P 10 was defined as early menarche(9.

[Association between early menarche and physical fitness among adolescent girls in China].

Objective: To explore the association between early menarche and physical fitness among adolescent girls in China.

Methods: Research material was selected from the data of "2010 National Physical Fitness and Health Survey". Probability unit regression method was used to calculate the age of 10th percentile at menarche and menarche age before the 10th percentile was defined as early menarche(9.

[Analysis of influencing factors on physical endurance of Chinese primary and middle school students aged 10 to 17].

Objective: To explore the influencing factors on physical endurance among Chinese primary and middle school students aged 10-17.

Methods: Data was used from "2010 National Physical Fitness and Health Surveillance", from which 68 458 primary and middle school students with complete information were selected. Good physical endurance was defined as endurance running time ≤ P 25 of same gender and age, poor physical endurance as ≥ P 75 of same gender and age.

[Association between physical development and spermatorrhea during puberty among boys aged 11 to 15 years in China].

Objective: To explore the association between spermatorrhea and physical development during puberty for boys aged 11 to 15 years old in China.

Methods: The height, weight, chest circumference, waist circumference, hip circumference and the station of spermatorrhea of boys aged 11-15 years old were selected from the data of 2010 National Survey on Students Constitution and Health. Body mass index (BMI) and waist to height ratio were calculated.

[Association between abdominal obesity and blood pressure among 7 to 10 years old Chinese children].

Objective: To analyze the association between abdominal obesity and blood pressure among 7-10 years old Chinese children.

Methods: A total of 40 495 children aged 7-10 years with complete height, weight, waist circumference and blood pressure data were chosen from the data of 2010 Chinese National Survey on Students Constitution and Health. Based on the "Reference Norms for Screening Overweight and Obesity in Chinese Children and Adolescents" developed by Working Group Obesity in China (WGOC) and the waist to height ratio reference value for children (WHtR ≤ 0.

[Influence of diet behaviors on height among children and adolescents in China: a multiple level analysis].

Objective: To categorize growth and development stages among children and adolescents based on height, and to explore the influences of diet behaviors on height during different growth and development stages.

Methods: Children and adolescents (7 to 18 years) with normal weights were selected using "Reference Norm for Screening Overweight and Obesity in Chinese Child and Adolescent" set up by WGOC in 2003 and "Reference Norm for Screening Underweight in Chinese Child and Adolescent" from the "2010 National Physical Fitness and Health Surveillance" data, and the variables of height and diet behaviors sorted. The growth and development stages were categorized using the hierachical cluster analysis, and the multilevel model was used to analyze influences of diet behaviors on height at different growth and development stages.

[Relationship between obesity, overweight and physical function in students of Han nationality aged 7 - 18 years in 2010].

Objective: To study the effects of overweight and obesity on physical function (including systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse, weight vital capacity index) in children and adolescents.

Methods: The data of 2010 Chinese National Survey on Students Constitution and Health was analyzed. The samples of overweight and normal-weight group were randomly selected from the data by matching gender, urban or rural for getting the same number sample size as obese group (10 601 each group).

[Effects of overweight and obesity on physical function among children and adolescents: a multilevel analysis].

Objective: To analyze the influence of overweight and obesity on body function among children and adolescents using a multilevel model, and to provide the basis for understanding their influence.

Methods: According to the "Reference Norms for Screening Overweight and Obesity in Chinese Children and Adolescents" set up by Working Group Obesity in China (WGOC) in 2003, we screened out individuals with overweight and obesity from the data obtained from the body and health survey of Chinese children and adolescents in 2005. The samples of the non-overweight group and the overweight group were randomly selected from the screened data by 1:1 match with samples of the obesity group by gender and city/rural area, then underwent the multilevel model to explore the influence of overweight and obesity on body function.

[Effects of fuzheng yiliu granules on apoptotic rate and mitochondrial membrane potential of hepatocellular carcinoma cell line H22 from mice].

Objective: To evaluate the effects of Fuzheng Yiliu Granules (FZYLG) on apoptotic rate and mitochondrial membrane potential (Delta psi m) of hepatocellular carcinoma cell line H22 from mice.

Methods: Forty-eight mice inoculated with H22 cells were randomly divided into four groups: untreated group, cyclophosphamide-treated group, high-dose FZYLG-treated group and low-dose FZYLG-treated group. After 14 days of corresponding treatment, H22 cells in each group were stained with propidium iodide, and the apoptotic rates were detected by flow cytometry (FCM).