Influence of Institution-Based Factors on Preoperative Blood Testing Prior to Low-Risk Surgery: A Bayesian Generalized Linear Mixed Approach

Table 3

Differences in the rate of preoperative blood testing based on institution size.

	Preoperative blood test		Total
		+
Number of beds
<100	22164 (53.9)	18993 (46.1)	41157
≥100	6266 (22.3)	21829 (77.7)	28095
Difference (95% CrI)
0.315 [0.309 to 0.322]			1.00

CrI, credible interval; θ, Bayesian index.