Xiaohua Ren

The relationship between dental caries and obesity among primary school children aged 5 to 14 years

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.

Prevalence of overweight and obesity among primary school children aged 5 to 14 years in Wannan area, China

BACKGROUND Overweight and obesity are epidemic worldwide. The purpose of this research is to estimate whether the prevalence of obesity among primary school children is high, and to identify its potential determinants to optimize the methods of prevention to combat further increases in childhood overweight. METHODS A cross-sectional study was designed to collect the routine health screening data for primary school children in Wannan area, China. Overweight and obesity status were determined using the International Obesity Task Force standard (IOTF) BMI cut-off points. RESULTS A total of 67956 subjects (36664 male and 31292 female) aged 5-14 years were recruited in this study. Depending on the references used (IOTF), the overall prevalence of overweight, including obesity of the subjects was 17.85% , the prevalence of overweight, including obesity was 22.9% in male subjects and 11.9% in female subjects, respectively. The overall prevalence of obesity was3.7%, the prevalence of obesity was 5.2 % in male subjects and 1.8% in female subjects, respectively. An interesting observation made was that the prevalence of overweight was high in male subjects. CONCLUSIONS Overweight is prevalence among primary school children, especially in male children. The relate department of school and government should take some measure to reduce the prevalence of overweight and obesity.

Prevalence of overweight and obesity among a university faculty and staffs from 2004 to 2010, China

BACKGROUND Overweight and obesity are epidemic worldwide. Our present study was to examine the prevalence of overweight and obesity in a university faculty and staffs using two references [Working Group on Obesity references in China (2004) and World Health Organization (WHO) criteria 2000 ]. OBJECTIVE The purpose of this study was to estimate the prevalence of overweight and obesity among university faculty and staffs in China. METHODS A cross-sectional study was designed to collect the routine health screening data for a university faculty and staffs from 2004 to 2010(2004, 2006, 2008 and 2010); the subjects aged 22-94 years. RESULTS Depending on the references used (China and WHO, respectively), the overall prevalence of overweight, including obesity of the subjects was 36.1% and 25.5%, the prevalence of obesity was 5.3%, and 1.5%, respectively, the prevalence of overweight, including obesity among the male subjects was 46% and 32.5%, respectively, the prevalence of overweight, including obesity among the female subjects was 21% and 14.1%, respectively, An interesting observation made was that the overall prevalence of overweight was increased with age. CONCLUSIONS Regarding the harmful of overweight and obesity, it is encourage reducing liberal food environment and increasing physical activity among university faculty and staffs, especially for male faculty.

Serum calcium levels are not associated with coronary heart disease.

Background Numerous studies have reported that low calcium intake is related to a higher prevalence of cardiovascular disease. However, the relationship between serum calcium and coronary heart disease is unclear. The purpose of this study was to compare serum calcium levels in patients with coronary heart disease and those in healthy individuals. Methods This retrospective, case-control study conducted in the People’s Republic of China comprised 380 cases and 379 controls. Serum calcium levels, blood lipids, and anthropometric measurements were measured in both groups. The Student’s unpaired t-test or Chi-square test was used to compare differences between cases and controls. Pearson’s partial correlation coefficient was used to determine the association between serum calcium, blood lipids, and blood pressure in both groups. Results Our results indicate that the average level of serum calcium in cases was higher than in controls. Serum calcium levels showed no correlation with any parameter except for triglycerides in either group. Conclusion Overall, these data suggest that serum calcium has no influence on coronary heart disease or triglyceride levels in the general population.

Prevalence of underweight, overweight and obesity in university students from the region of Anhui (China)

BACKGROUND Overweight and obesity are epidemic worldwide. Our previous study found that the prevalence of overweight and obesity in primary students is high. OBJECTIVE we sought to estimate whether the prevalence of overweight and obesity among university students is still high in China. METHODS A cross-sectional study was designed to collect the routine health screening data for university students in 2013. The height and weight of students were measured, and BMI was calculated with height and weight, we estimated the underweight and obesity prevalence of university students using by two references [Working Group on Obesity references in China (2004) and World Health Organization (WHO) criteria (2000)]. RESULTS Depending on the China references used, the overall prevalence of underweight, overweight (including obesity) and obesity in male university students were 14.2%, 14.7% and 4.2%, respectively; in female university students were 27.5%, 4.4% and 0.6%, respectively. Depending on the WHO references used, the overall prevalence of underweight, overweight (including obesity) and obesity in male university students were 14.2%, 11.5% and 2.5%, respectively, in female university students were 27.5%, 2.4% and 0.3%, respectively. An interesting observation made was that the underweight prevalence of university students has an increasing trend, especially in female. CONCLUSION The study showed that the prevalence of underweight in university students, especially in female students has become a critical health issue. Related department of school and government should pay more attention to students physical health.

Prevalence of overweight and obesity among secondary school children aged 14 to 18 years (China)

BACKGROUND Prevalence of overweight and obesity in adolescents has been increasing during recent decades. The present study aimed to assess the prevalence of obesity in 14-18 years old Anhui Secondary school children, and provide more comprehensive guidelines for intervention programs. METHODS This cross-sectional study was conducted among 4788 children in secondary school, and date from the routine health survey was analyzed. Trained health workers took anthropometric measures, height and weight, at the school. Definition of children overweight and obesity children was based on the international age-and sex-specific body mass index reference standards proposed by the International Obesity Task Force and National Center for Health Statistics. RESULTS According to the IOTF standard the prevalence of overweight (including obesity) and obesity revealed decreasing trend with age in male (overweight, from 17.3% at 14-y to 5.3% at 18-y; obesity, from 3.8% at 14-y to 2.3% at 18-y). Depending on the NCHS references used, the overall prevalence of overweight (including obesity) and obesity in male aged 14 to 18 decreases from 16.4% to 11.7% and from 4.6% to 2.8%, respectively. CONCLUSION The overweight (including obesity) and obesity from 14 to 18 years old have a decreasing trend, and more attention should be taken to male students in China. These findings suggest secondary school and government need to design appropriate guidelines to keep healthy for adolescents in China.