Objective To explore the relationship between the behavior and social ability development of Chinese urban 2 ～ 3 years old toddlers. Methods The number of 2601 toddlers aged 2～3 years old were involved by random cluster sampling under the cross-sectional study from 14 large-media cities in China and surveyed by Child Behavior Checklist(CBCL 2/3) and Chinese Toddler Social and Emotional Assessment CTSEA) Questionnaire. The multiple stepwise regression analysis was used to analyze the surveyed results. Results In 2601 toddlers,there were 194 toddlers detected positive about the behavior, the rate was 7. 5% , including boys 107 (4.11%) and girls 87 (3. 34%),and there was gender differences in positive rates of the behavior(t = 2.36,P< 0.05). Otherwise,268 toddlers were detected positive about social-emotional ability,the rate was 10.3% .including boys 139 (5.34%) and girls 129 (4.96%), there also was gender differences in suspected positive rates of social-emotional ability(t = 3.60, P<0.01). The multiple stepwise regression analysis results indicated that attacks, damage,depression,withdrawal were correspond correlated with compliance,empathy,prosocial-peer-relations and imitation. Conclusion Cultivating good habits would promote the development of children' s social ability.

Obesity has become a serious public health problem globally.China has the world's largest number of people with obesity or overweight.More than 50％of adults and about 20％of children and adolescents in China are overweight or obese.Over the past 20 years,China has made many efforts in obesity intervention,while obesity rates continued rising.In recent years,China has taken more actions for obesity prevention.The World Obesity Day(WOD)was established in 2015 by the World Obesity Federation,and is a unified day of action calling for a cohesive,cross-sector response to fight obesity.WOD has drawn increasing attention in recent years.China formally joined the WOD activities this year,promoted by The Obesity Prevention and Control Section of Chinese Nutrition Society,which cooperated closely with other organizations in carrying out a series of activities during the 2022 WOD.These efforts aimed to encourage the whole society to pay attention to the obesity problem and take more practical actions.The activities include:(1)The 2022"World Obesity Day"China Summit;(2)a specifically developed WOD obesity prevention education video;and(3)the launch of The Expert Consensus on Obesity Prevention and Treatment in China.These can serve as examples for other organizations and countries to consider in future intervention efforts.To fight the global obesity epidemic,all counties and people need to act.Countries can learn from each other's successful practices.

OBJECTIVETo explore prenatal related factors of high BMI status in children at 1 and 2 years of age.

METHODA total of 2 220 newborns from Shenyang, Wuhan and Guangzhou were recruited in this birth cohort, thereafter they were followed up to two years of age.Self-administered questionnaires were used to collect such variables as social-demographic characteristics and feeding practice, etc. The anthropometric measures of children were collected by trained health staff. The data were subjected to multiple logistic regression analysis to determine the related factors for high BMI among infants and toddlers.

RESULTThe number of children with high BMI status were 550 (32.80%) at one year of age and 309 (26.23%) at two, respectively. The number of boys with high BMI status were 178 and girls 309 at age two years. The prevalence of high BMI status among boys (29.1%) at age two was significantly higher than that of girls (23.1%) (χ² = 5.52, P = 0.02). Logistic regression analysis showed that after the adjustment for sex, parental educational level, family economic status and other confounding factors, maternal passive smoking during pregnancy [OR:aged one:1.38 (1.05-1.82);aged two:1.48 (1.05-2.09)], maternal pre-pregnancy overweight and obesity [aged one:1.29 (1.05-1.58); aged two:1.35 (1.04-1.76)], paternal overweight and obesity [aged one:1.50 (1.21-1.87); aged two:1.47 (1.11-1.95)] and birth weight [aged one:1.53 (1.05-1.82); aged two:1.87 (1.33-2.63)]were identified to be associated with high BMI status in children.

CONCLUSIONMaternal passive smoking during pregnancy, paternal and maternal (pre-pregnancy) overweight or obesity and high birth weight are found to be important related factors for high BMI status in young children. Childhood overweight/obesity prevention should be considered starting as early as before pregnancy.

Birth Weight ; Body Mass Index ; Child, Preschool ; China ; epidemiology ; Cohort Studies ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Multivariate Analysis ; Odds Ratio ; Overweight ; epidemiology ; etiology ; prevention & control ; Parents ; Pediatric Obesity ; epidemiology ; etiology ; prevention & control ; Pregnancy ; Prenatal Exposure Delayed Effects ; epidemiology ; Risk Factors ; Smoking ; adverse effects ; Surveys and Questionnaires