P3‐592: RISK OF DEVELOPING DEMENTIA AMONG OLDER ADULTS UNDERGOING ELECTIVE SURGICAL PROCEDURES WITH GENERAL ANESTHESIA WHEN COMPARED TO REGIONAL ANESTHESIA. (1st July 2006) - Velkers, Clive; Whitehead, Marlo; Reimer, Cara; Eckenhoff, Roderic; Berger, Miles; Rochon, Paula A.; Gill, Sudeep; Austin, Peter; Hussain, Maria; Seitz, Dallas