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Objective: To investigate the correlation between snoring in parents and children and to understand the genetic predisposition to snoring.Methods: A sampling survey of 11,163 residents over the age of 14 from 2,862 households was conducted in Guangxi, China.The survey data were collected by using physical examinations and household questionnaire surveys.Based on the pattern of snoring in the parents, the surveyed families were divided into four groups: group A, no snoring in parents; group B, snoring in fathers; group C, snoring in mothers; and group D, snoring in both parents.Results: The incidence of snoring in sons, but not in daughters, graduallv increased from 6.2% in group A to 17.6%, 22.9% and 37.5%, in groups B, C and D(p<0.05).The analysis of the odds ratio (OR) for the standard families showed that when group A was used as a control, the OR of snoring in children in groups B, C and D was 3.25 (95% CI: 1.81-5.84), 4.64 (95% CI: 1.96-10.96) and 7.55 (95% Cl: 3.61-15.79), the OR of snoring in children in group D was affected the most, there was no significant difference between groups B and C.Conclusions:There are trend of familial aggregation in snoring in Chinese population, the sons appear to have higher risk to snoring in families either snoring in father or mother.