Frequency of Blood Pressure and Estimated Glomerular Filtration Rate Testing in Type 2 Diabetes Mellitus: A Retrospective Study with 43,509 Patients

Background The goal of this study was to analyze the frequency of blood pressure (BP) and estimated glomerular filtration rate (eGFR) testing in type 2 diabetes mellitus (T2DM) patients followed in general and diabetological practices in Germany. Methods The study included individuals who had at least two concultations due to T2DM diagnosis (ICD-10: E11) between January and December 2016. Patients were followed in 557 general and diabetological practices. The primary outcome was the frequency of BP and eGFR testing in T2DM patients in 2016. The association between several demographic and clinical variables and the odds of receiving >= 2 BP and >= 1 eGFR tests in the year 2016 was analyzed using multivariate logistic regression models. Results A total of 43,509 individuals were available for analysis. The mean age of the population was 68.6 years (SD =12.4 years). The mean number of measurements was 2.9 (SD = 3.5) for BP and 0.4 (SD = 1.1) for eGFR. 52.3 % of patients were tested at least twice for BP and 15.3% of them at least once for eGFR in 2016. Older patients, individuals followed in diabetological practices, people receiving antihyperglycemic medications, and those affected by chronic conditions (i. e. hypertension, renal complications, or neuropathy) displayed higher odds of receiving >= 2 BP and >= 1 eGFR tests, whereas patients with a diabetes duration of > 1 year displayed lower odds. Conclusions The frequency of BP and eGFR testing was low in T2DM patients in Germany in 2016. Several demographic and clinical variables were associated with this frequency.