Table 2.

Crude incidence rates for antibiotic starts

Month	Antibiotic starts, UTIa	Antibiotic starts, all indications
1	1.8	4.8
2	2.4	5.1
3	2.1	4.6
4	3.5	6.5
5	2.7	5.8
6	2.4	5.6
7	2.4	6.2
Intervention began
8	2.6	4.4
9	1.5	4.2
10	1.3	3.8
11	1.2	3.6
12	1.5	4.3
13	1.2	2.8
14	1.9	3.4

UTI urinary tract infection

^aN/1000 resident-days for antibiotic measurements