Table 2.

RRs for different AB-prescribing measures comparing clinicians or practices in random effect models

Comparison of clinicians	AB-prescribing measure	Comparison of clinicians	Comparison of practices
		RR* (95th divided by 5th percentile)	RR† (95th divided by 5th percentile)
All	Crude AB prescribing rate	5.23	2.68
	Use of broad-spectrum AB types	1.86	1.53
	Level of repeat AB courses	2.21	1.59

*Adjusted for propensity score of case mix and clinician coding level.

†Crude.

AB, antibiotic; RR, relative rate.