Table 2.

2 × 2 tables of all prescriptions audited. All prescriptions in the selected patient files were compared with our indicators using three different definitions of “new prescription” (>35, >28, and >21 days after the previous antimicrobial prescription)

		Medical file		Total
		New	Not new
Classified by indicator using 35 days definition	New	962	3	965
	Not new	24	236	260
	Total	986	239	1,225
Classified by indicator using 28 days definition	New	966	23	989
	Not new	20	216	236
	Total	986	239	1,225
Classified by indicator using 21 days definition	New	974	51	1,025
	Not new	12	188	200
	Total	986	239	1,225