Administrative database research has unique characteristics that can risk biased results
van Walraven C, Austin P. J Clin Epidemiol. 2011; 65(2):126-31 Epub 2011 Nov 9.
Publications
Using the Johns Hopkins Aggregated Diagnosis Groups (ADGs) to predict mortality in a general adult population cohort in Ontario, Canada
Austin PC, van Walraven C, Wodchis WP, Newman A, Anderson GM. Med Care. 2011; 49(10):932-9. Epub 2011 Oct 1.
The mortality risk score and the ADG score: two points-based scoring systems for the Johns Hopkins aggregated diagnosis groups to predict mortality in a general adult population cohort in Ontario, Canada
Austin PC, van Walraven C. Med Care. 2011; 49(10):940-7. Epub 2011 Oct 1.
Unplanned readmissions after hospital discharge among patients identified as being at high risk for readmission using a validated predictive algorithm
Gruneir A, Dhalla IA, van Walraven C, Fischer HD, Camacho X, Rochon PA, Anderson GM. Open Med. 2011; 5(2):e104-111. Epub 2011 May 31.
Radiographic monitoring of incidental abdominal aortic aneurysms: a retrospective population-based cohort
van Walraven C, Wong J, Morant K, Jennings A, Austin PC, Forster AJ. Open Med. 2011; 5(2):e67-76. Epub 2011 Apr 12.
Derivation and validation of an index to predict early death or unplanned readmission after discharge from hospital to the community
van Walraven C, Dhalla IA, Bell C, Etchells E, Stiell IG, Zarnke K, Austin PC, Forster AJ. CMAJ. 2010; 182(6):551-7. Epub 2010 Mar 1.
Long-term outcomes and resource utilization of endovascular versus open repair of abdominal aortic aneurysms in Ontario
Jetty P, Hebert P, van Walraven C. J Vasc Surg. 2010; 51(3):577-83.e1-3. Epub 2010 Jan 4.
A modification of the Elixhauser comorbidity measures into a point system for hospital death using administrative data
van Walraven C, Austin PC, Jennings A, Quan H, Forster AJ. Med Care. 2009; 47(6):626-33.
When laboratories report estimated glomerular filtration rates in addition to serum creatinines, nephrology consults increase
Jain AK, McLeod I, Huo C, Cuerden MS, Akbari A, Tonelli M, van Walraven C, Quinn RR, Hemmelgarn B, Oliver MJ, Li P, Garg AX. Kidney Int. 2009; 76(3):318-23. Epub 2009 May 13.
Effect of age on stroke prevention therapy in patients with atrial fibrillation
van Walraven C, Hart RG, Connolly S, Austin PC, Mant J, Hobbs FD, Koudstaal PJ, Petersen P, Perez-Gomez F, Knottnerus JA, Boode B, Ezekowitz MD, Singer DE. Stroke. 2009; 40(4):1410-6. Epub 2009 Jan 29.