The BrazDiab1 study group performed a multicenter retrospective, cross-sectional study on individuals with T1DM between December 2008 and December 2010, in 28 public clinics from the secondary and tertiary level of health care, from 20 cities (population > 100,000) from all the five Brazilian geographical regions (North, Northeast, Southeast, South and Midwest). All patients received health care from the National Brazilian Health Care System (NBHCS), and were regularly treated by an endocrinologist. All data were obtained from a single examination performed by trained medical professionals.
Details of BrazDiab1 have been published elsewhere (14). Briefly, participants were interviewed and demographic data were collected through a questionnaire. Furthermore, the following variables were assessed through an interview during a clinical visit and the patient’s medical records review.
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