Gender-differences in glycemic control and diabetes related factors in young adults with type 1 diabetes: results from the METRO study

To describe gender differences concerning glycemic control, cardiovascular risk factors, diabetic complications, concomitant pathologies, and circulating endothelial progenitor cells (EPCs), in a population of young adults with type 1 diabetes. We collected data from 300 consecutively patients (168 males and 132 females), aged 18-30 years, among those admitted at Diabetes Unit of University of Campania "Luigi Vanvitelli" (Naples, Italy) from March 2012 to January 2017. Circulating levels of seven EPCs phenotypes were determined by flow cytometry. As compared to men, women with type 1 diabetes had a significantly higher HbA1c levels (%, 8.4 +/- 1.3 vs. 8.1 +/- 1.3, P = 0.020), body mass index (Kg/m(2), 24.8 +/- 4.2 vs. 23.9 +/- 3.9, P = 0.034), HDL-cholesterol (mg/dL, 61.7 +/- 13.7 vs. 54.7 +/- 13.9, P < 0.001), and a lower count of both CD133+KDR+ and CD34+KDR+CD133+ EPCs (P = 0.022, P < 0.001, respectively). A higher proportion of women had overweight/obesity, and thyroiditis; smoking and sexual dysfunctions were more prevalent in men than in women. Young adults with type 1 diabetes present gender differences with regard to glycemic control, prevalence of some cardiovascular risk factors, sexual dysfunctions and circulating levels of EPCs, most often to the detriment of women.