Objective. To evaluate the prevalence of chronic vascular complications and associated factors in patients with type 1 diabetes mellitus (DM 1.0, CI95%: 1.0-1.01, P = 0.05]. Seven patients had macrovascular disease. Only 22% achieved an HbA1c of <7.0%. HPT prevalence was 33%, and 48% had blood pressure levels <130/80 mmHg and 45% of the patients had LDL values > 100 mg/dl. cOnclusiOn. We observed a high prevalence of microvascular complications and HPT. The duration of DM, HPT and presence of DN were associated with DR. HPT and dyslipidemia were associated with DN. Most patients did not meet the desired glycaemic control, blood pressure and lipid targets. Greater efforts are needed to intensify the pressure and metabolic control of patients with type 1 DM.