Table 4. Multivariable Models Showing Factors Associated with Inability to Identify All Medications.

Variable	OR (95% CI)
	Strategy 1	Strategy 2
Age<65 y	—	1.95 (0.92 to 4.16)
Schooling<12 y	3.22 (1.44 to 7.21)	NA*
MMSE<24	—	—
Literacy†
Marginal	4.75 (0.95 to 23.75)	4.78 (0.97 to 23.53)
Inadequate	12.00 (2.57 to 56.08)	18.04 (3.99 to 81.56)

^*Modeling strategy 2 excluded years of schooling as a potential covariate.

^†Reference group: adequate literacy.

—Indicates variable was dropped during model reduction.

MMSE, Mini-Mental State Exam; CI, confidence ratio; OR, odds ratio; NA, not applicable.