Rodolfo Valdez

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OBJECTIVES To review the magnitude, characteristics, and public health importance of type 2 diabetes in North American youth. RESULTS Among 15- to 19-year-old North American Indians, prevalence of type 2 diabetes per 1000 was 50.9 for Pima Indians, 4.5 for all US American Indians, and 2.3 for Canadian Cree and Ojibway Indians in Manitoba. From 1967-1976(More)
BACKGROUND We present a potentially useful alternative approach based on support vector machine (SVM) techniques to classify persons with and without common diseases. We illustrate the method to detect persons with diabetes and pre-diabetes in a cross-sectional representative sample of the U.S. population. METHODS We used data from the 1999-2004 National(More)
Recent data indicate that low-birthweight adults are at a higher risk than their high-birthweight peers of developing ischaemic heart disease or a cluster of conditions known as the IRS, which includes dyslipidaemias, hypertension, unfavourable body fat distribution and NIDDM. Thus far these observations have been limited to Caucasians from the United(More)
PURPOSE To evaluate the use of self-reported family medical history as a potential screening tool to identify people at-risk for diabetes. METHODS The HealthStyles 2004 mail survey comprises 4345 US adults who completed a questionnaire to ascertain personal and family history of diabetes, perceived risk of diabetes, and practice of risk-reducing(More)
BACKGROUND Abdominal fat and circulating triacylglycerols increase with age, which indicates lipid overaccumulation. Enlarged waist (EW) with elevated triacylglycerols (ET) could identify adults at metabolic risk. OBJECTIVE Using thresholds for EW and ET observed among the youngest adults, we estimated for all adults the prevalence of combined EW and ET(More)
A new index of abdominal adiposity, the conicity index, and the waist-to-hip ratio (WHR) were compared as health indicators in seven European populations and two USA populations. The total sample included 1280 men and 960 women. Abdominal adiposity as detected by these indices is significantly associated with more cardiovascular risk indicators among women(More)
OBJECTIVE To estimate the percent and number of overweight adults in the U.S. with prediabetes who would be potential candidates for diabetes prevention as per the American Diabetes Association Position Statement (12). RESEARCH DESIGN AND METHODS We analyzed data from the Third National Health and Nutrition Examination Survey (NHANES III; 1988-1994) and(More)
Several studies indicate that the risk for type 2 diabetes or cardiovascular disease is detectable in childhood, although these disorders may not emerge until adulthood. In addition, type 2 diabetes and cardiovascular disease seem to share risk factors, including obesity and dyslipidemia, and might even share etiology, which has important implications for(More)
The purpose of this work was to examine the influence of apolipoprotein gene variation on plasma lipid levels in a population of Mayan Indians of the Yucatán Peninsula, Mexico. Four restriction enzymes: XmnI, PstI, SstI, and PvuII, were used to detect restriction fragment length polymorphisms (RFLP) within the region of the apolipoprotein AI/CIII/AIV gene(More)