Abstract: The present invention discloses a method for efficiently recording and entering multiple anesthetic treatment variables, including all the data conventionally recorded in an anesthetic record, as well as anesthesia outcome data, into an integrated computer data base. The data base is thereafter subjected to trend analysis to identify any statistically significant nexus between treatment variables with sub-optimal outcomes. Accurate cost trend information is also provided. In preferred embodiments of the present invention, the required use of standardized practice protocols are disclosed in a method that optimizes the identification of any such nexus. Thus, the disclosed method provides accurate information useful for the modification and improvement of delivered anesthetic care.