Table 2.

Culture results, regularly followed patients

Parameter	Before period	After period	P value
No. of patients	340	340
Routine cultures	3,154	3,381
Total no. of samples	4.6 ± 2.6	5.0 ± 2.8	<0.01
Avg no. of samples cultured per patient annually
No. (%) of RGM-positive samples	25 (3.2)	111 (8.2)	<0.001
No. (%) of patients with any RGM	11 (3.2)	28 (8.2)	<0.01
No. (%) of patients with RGM infectiona	5 (1.5)	16 (4.7)	0.024
Cultures for AFB
Total no. of samples	1,199	1,545
Avg no. of samples cultured per patient annually	1.8 ± 2.1	2.3 ± 2.5	<0.001
No. (%) of RGM-positive samples	80 (6.7)	102 (6.6)	0.81
No. (%) of patients with any RGM	19 (5.6)	22 (6.5)	0.75
No. (%) of patients with RGM infection	14 (4.1)	16 (4.7)	0.85

^aRGM infection was defined as two or more RGM-positive cultures for an individual patient within a 2-year study period (before or after).