Researchers recruited 45 middle-school students to undergo cardiovascular screening at school and found that 34.8% had high HbA1C or lipid levels and 23.2% had high triglyceride levels, while 42.2% had a body mass index in the overweight or obese range and 57.8% had a normal or low BMI. The findings in The Journal of Pediatrics also revealed that two children with HbA1C levels in the diabetes range had not been diagnosed with the disease and did not have symptoms, highlighting the need for CV screenings, said researcher Dr. Robert Siegel.