BACKGROUND: The AGnES-concept (GP-supporting, community-based, e-health-assisted, systemic intervention) includes the delegation of general practitioner (GP)-home visits to qualified practice assistants, especially in underserved areas. Most visited patients were elderly, multimorbid patients with limited mobility. We analyzed a subgroup of hypertension patients to assess the proportion of patients with controlled hypertension, the number of patients that changed between different categories of blood pressure during the project, and to identify possible determinants for these changes. MATERIALS AND METHODS: Eligible patients were selected by the participating GPs. Hypertensive patients with at least two blood pressure measurements were included. Two-level mixed-effects multiple binary logistic regression analyses were conducted to evaluate possible determinants for the found effects. RESULTS: Overall, 776 patients (mean age 79.2 years; SD 8.1 years; range 38-98 years) were included in the analysis. During the project, the mean values for systolic (from 136.1 to 131.0 mmHg, P