Prevalence of Potentially Inappropriate Medication use in older drivers

BMC Geriatrics

Table 1 Prevalence of Potentially Inappropriate Medication (PIM) use in older drivers by demographic characteristics, the Longitudinal Research on Aging Drivers (LongROAD) study

Characteristic	No. of drivers	No. of drivers using one or more PIM^a	Prevalence (%)	p-value
Overall	2949	545	18.5
Age at baseline (years)				0.244
65–69	1222	225	18.4
70–74	1027	177	17.2
75–79	700	143	20.4
Sex				0.000
Male	1382	172	12.4
Female	1567	373	23.8
Race/Ethnicity				0.004
White, non-Hispanic	2526	491	19.4
Black, non-Hispanic	207	24	11.6
Hispanic	80	15	18.8
Asian	65	5	7.7
Other	71	10	14.1
Marital Status				0.003
Married	1850	307	16.6
Divorced	439	105	23.9
Widowed	371	81	21.8
Never married	128	23	18.0
Other	161	29	18.0
Education				0.248
Less than high school	70	13	18.6
High school	265	43	16.2
Some college/Associate’s degree	715	152	21.3
Bachelor’s degree	691	126	18.2
Advanced degree	1208	211	17.5
Household Income in the previous year				0.332
< $20,000	131	31	23.7
$20,000–$49,999	633	118	18.6
$50,000–$79,999	710	133	18.7
$80,000–$99,999	427	67	15.7
≥ 100,000	942	174	18.5
Frailty score				0.286
Not frail	1205	215	17.8
Pre-frail	1636	302	18.5
Frail	85	21	24.7
Study Site				0.005
Ann Arbor, MI	595	102	17.1
Baltimore, MD	583	100	17.2
Cooperstown, NY	595	88	14.8
Denver, CO	577	124	21.5
San Diego, CA	599	131	21.9

^aIncludes 450 drivers using one PIM, 76 using two PIMs, 15 using three PIMs, 3 using four PIMs, and 1 using five PIMs

ISSN: 1471-2318