Table 5. Subgroup Medians by Number of OR Sites
The subgroup medians based on number of anesthetizing sites (OR sites) is shown to illustrate how additional subgroups could be analyzed in an industry-wide survey. The academic versus private practice subgroup analysis is seen in table 4. Other potentially useful subgroup analyses that could be done in an industry-wide survey by hospital type, by care model, by number of cases, or by number of anesthesiologists (see text for details). Statistical analysis was not performed because of small sample size in some subgroups.
tASA = total ASA units; OR site = anesthetizing site; 1 h = 4 time units; Base = base units.