title: The relationship between dental caries and obesity among primary school children aged 5 to 14 years.
abstract: BACKGROUND
  Previous study revealed that the link between dental caries and obesity has been controversial. The purpose of this research is to investigate the association between dental caries and obesity among primary school children in Wannan area, China.
  
  
  METHODS
  A cross-sectional study was designed to collect the routine health screening data for primary school children aged 5-14 years in Wannan area,China, Overweight and obesity status were determined using the International Obesity Task Force standard (IOTF) BMI cut-off points. Caries status was recorded based on WHO recommendations.
  
  
  RESULTS
  Our results revealed that the overall caries prevalence of the subjects was 44.9%, Maximum number of caries affected children belonged to underweight and normal group, followed by overweight, and the least number was obesity. These differences were statistically significant (chi-square test, P < 0.001). Children with obesity were 1.908 times (OR =1.908; CI95%=1.750, 2.079) more likely have caries than children with underweight or health weight. Overweight children were 1.547 times (OR = 1.547; CI95% = 1.479, 1.618) more likely to have caries than children with underweight or health weight. After adjusted the gender and age, a statistically significant association was also observed between body mass index categories and caries.
  
  
  CONCLUSIONS
  Obesity may have a significant effect on caries prevalence of primary school children in Wannan area, China. The importance of obesity should not only be emphasized with respect to general diseases but also with regard to carious lesions.
authors.affiliation: Laboratory of Environment and health, School of Earth and Environment. Anhui University of Science and Technology. Huainan 232001. Anhui, People's Republic of China. School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China.. 1983helianping@163.com.
authors.forename: Yingshui
authors.initials: Y
authors.lastname: Yao
authors.affiliation: School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China..
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Ren
authors.affiliation: School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China..
authors.forename: Xiuli
authors.initials: X
authors.lastname: Song
authors.affiliation: School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China..
authors.forename: Lianping
authors.initials: L
authors.lastname: He
authors.affiliation: School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China..
authors.forename: Yuelong
authors.initials: Y
authors.lastname: Jin
authors.affiliation: School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China..
authors.forename: Yan
authors.initials: Y
authors.lastname: Chen
authors.affiliation: School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China..
authors.forename: Wei
authors.initials: W
authors.lastname: Lu
authors.affiliation: School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China..
authors.forename: Daoxia
authors.initials: D
authors.lastname: Guo
authors.affiliation: School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China..
authors.forename: Lingling
authors.initials: L
authors.lastname: Ding
authors.affiliation: School of Public Health. Wannan Medical College. Wuhu 241002, Anhui, People's Republic of China..
authors.forename: Hui
authors.initials: H
authors.lastname: Tang
authors.affiliation: Tongling municipal center for disease control and prevention of Anhui province. Tongling244000. Anhui. People's Republic of China..
authors.forename: Ningkai
authors.initials: N
authors.lastname: Wei
authors.affiliation: Tongling municipal center for disease control and prevention of Anhui province. Tongling244000. Anhui. People's Republic of China..
authors.forename: Shenwei
authors.initials: S
authors.lastname: Qiu
authors.affiliation: Department of Medical Parasitology. Wannan Medical College. Wuhu 241002. Anhui. People's Republic of China.. cpli001@126.com.
authors.forename: Chaopin
authors.initials: C
authors.lastname: Li
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D003731:Dental Caries / Q000150:complications* / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D009765:Obesity / Q000150:complications*; D015995:Prevalence