Table 2.

Highest 5 and Lowest 5 VA Facilities with Adjusted Exposure to Incident Prescriptions for High-Risk Medications in the Elderly (iHRME). The percentages indicate the proportion of individuals at a given facility with an iHRME exposure.

Rank	VISN*	iHrme (%)	Adjusted iHRME (%)†	95% CI	Top Drug Class Prescribed in iHRME
1	A	12.76	8.41	7.72-9.15	Opioids
2	B	9.64	7.07	6.59-7.58	Antihistamines
3	C	8.56	6.96	6.54-7.40	Antihistamines
4	D	8.16	6.93	6.57-7.29	Opioids
5	D	7.92	6.54	6.21-6.90	Opioids
124	E	2.09	2.35	2.16-2.57	Antihistamines
125	F	2.11	2.32	2.02-2.65	Skeletal Muscle Relaxants
126	G	1.76	2.17	1.85-2.55	Antihistamines
127	H	2.09	2.16	1.95-2.39	Antihistamines
128	E	1.56	2.01	1.73-2.32	Opioids

^*To maintain confidentiality, each VISN is represented by a letter. Where the letters are the same, it indicates that the two VA facilities are located in the same VISN. VISN = Veterans Integrated Service Network.

^†Adjusted for all patient-level variables