The QUALICOPC study aims to evaluate primary care systems in Europe against criteria of quality, equity and costs. The study answers what effects strong primary care systems have on the performance of overall healthcare systems. The study will collect data in 32 countries by means of surveys among general practitioners and patients. The study will also use data from the OECD/Eurostat System of Health Accounts; the OECD Healthcare Quality Indicators Project and the PHAMEU data base. The consortium for QUALICOPC consists of six partner institutes. By combining different data sources QUALICOPC will advance the state-of-the-art in primary care research.