| Objective:To explore the influence of parental weight status and children's eating behaviors on children's obesity by prospective cohort study,and to provide evidence for obesity prevention and intervention in early childhood.Methods:Participants were recruited from main urban areas of Wuhan city from November 2010 to October 2013,and those children were less than one year old and meet the requirements of study.According to the mother's weight status before the pregnancy,father's weight status at children 1 years old,participants were divided into high-risk groups and low-risk groups,high-risk group for parents at least one obese or both overweight,low-risk group for only one of the parents was overweight or both healthy weight.After entering the group,children were followed within two weeks of the birth of the child every year,including questionnaires(basic demographic information,dietary behavior of children,sleep and physical activity of children)and physical measurements of parents and children.Basic characteristics of children were described,and multiple linear regression analysis were used to analysis the effects of mother's BMI before the pregnancy,father's BMI and children's eating behavior on the BMI_Z of 5-year-old children after adjusting the confounding factors.Results:(1)General:A total of 279 families included in the analysis,follow-ups of141 were carried out at 5 years old,no response analysis found that the children's parents were older and their mothers had higher levels of education who were successfully followed at the age of 5,and had no significant differences in parental weight status,family income and child birth information.69 of families were in the high-risk group and 72 in low-risk group at the age of 5,maternal BMI before pregnancy(23.0±3.3 v.s20.4±2.2 kg/m~2)and paternal BMI(27.8±2.9 v.s22.9±3.2 kg/m~2)were statistically significantly different between the two groups,and there were no significant differences in other basic demographic information.(2)The difference of physical development of 1-5 years old children in high-risk group and low-risk group:The height of high-risk group was higher than low-risk group,but significant difference was only found in 5 years old(113.34±4.58v.s111.64±5.10cm).Weights were higher in high-risk group than in low-risk group among all ages,and the difference was statistically significant(P<0.05).High-risk group had higher BMI and the incidence of overweight and obesity than low-risk group at all ages except the age of 1.(3)Children's dietary behavior scores:At 5 years old,high-risk group had significantly lower scores at"Response to satiety"than low-risk group;at 5 years old,scores of"Enjoyment Food"were increased by the increase of weight status(P<0.05),while scores of"Slowness in eating"and"Response to satiety"were decreased(p<0.05).(4)Multiple linear regression analysis:In unadjusted model,mother's BMI before pregnancy(?=0.09),father's BMI(?=0.10)and“Food responsiveness”had positive effects on children 5-year-old BMI_Z(P<0.05),while"Satiety responsiveness"had a negative effect(P<0.05).After adjusted confounding factors,mother's BMI before the pregnancy(?=0.12),father's BMI(?=0.09)and“Food responsiveness”(?=0.39)had significant effects on children 5-year-old BMI_Z(P<0.05),while"Satiety responsiveness"had no significant effect on children 5-year-old BMI_Z.Conclusions:Mother's BMI before pregnancy and father's BMI had positive effects on children's BMI_Z at 5 years old,and"Satiety responsiveness"had a negative effect on children's BMI_Z at 5 years old,while“Food responsiveness”had a positive effect and more stable.Parental weight status should be concerned when making policies for children obesity prevention,as well as promoting children to form healthy eating behavior. |
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