Predicting risk of emergency admission to hospital using primary care data: derivation and validation of QAdmissions score

To develop and externally validate a risk algorithm (QAdmissions) to estimate the risk of emergency hospital admission for patients aged 18-100 years in primary care.Prospective open cohort study using routinely collected data from general practice linked to hospital episode data during the 2-year study period 1 January 2010 to 31 December 2011.405 general practices in England contributing to the national QResearch database to develop the...