Increasing Body Mass Index, Blood Pressure, and Acanthosis Nigricans Abnormalities in School-Age Children

• Activity Number: 357
• Type: Contributed
• Date/Time: Tuesday, August 6, 2013 : 10:30 AM to 12:20 PM
• Sponsor: Section on Statistical Consulting
• Author(s): Xiaohui Wang*+ and Debra Otto and Viola Garza and Lilia Fuentes and Pamela Sullivan and Doreen Garza and David Salazar
• Companies: The University of Texas Pan American and The University of Texas-Pan American and The University of Texas-Pan American and The University of Texas-Pan American and The University of Texas-Pan American and The University of Texas-Pan American and The University of Texas-Pan American
• Keywords: AN marker ; Body mass index ; Children Obese ; Hispanic School Children

Abstract

The purpose of this retrospective quantitative study was to examine the relationships between age, gender, acanthosis nigricans (AN) marker, body mass index (BMI), and blood pressure in children attending school 1st, 3rd, 5th, 7th and 9th grades in South West Texas. Further, we want to justify our hypothesis that the situation was getting worse from the year of 2005 to 2010. Of the 34,897 records from the Texas state mandated screening program, 32,788 were included for this secondary analysis. Logistic regression analysis was utilized to study independent variables' effects on AN, and multiple regression was employed to study those effects on BMI. SY09-10 was the worst year in the six-year period with highest percents of positive AN marker and obese kids. The proportions of children with three positive markers in each grade were increasing about 2% from SY05-06 to SY08-09. In addition, these proportions of students with both AN and BMI risk markers showed a clear increasing trend during the six-year period. We found there were significant time effects that for same gender and BMI, children were more likely to have positive AN marker in later years, compared to the year of 2005.