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Table 3 Adjusted Odds Ratios (ORs) and 95% Confidence Intervals (CIs) of Potentially Inappropriate Medication (PIM) use in older drivers by risk markers, the Longitudinal Research on Aging Drivers (LongROAD) study

From: Prevalence of Potentially Inappropriate Medication use in older drivers

Risk Marker

Adjusted ORa

95% CI

Sex

 Male

1.00

reference

 Female

2.05

1.65–2.55

Race/Ethnicity

 White, non-Hispanic

1.00

reference

 Black, non-Hispanic

0.42

0.26–0.66

 Hispanic

0.86

0.47–1.58

 Asian

0.36

0.14–0.92

 Other

0.61

0.30–1.22

Total number of medications used

 0–4

1.00

reference

 5–7

2.43

1.68–3.51

 8–11

4.19

2.95–5.93

  ≥ 12

8.01

5.71–11.23

Urbanicity

 Rural

1.00

reference

 Suburban

0.90

0.60–1.37

 Urban

1.61

1.17–2.21

  1. OR Odds Ratio; 95% CI = 95% Confidence Interval
  2. aAdjusted for age, marital status and frailty phenotype in addition to variables in the table