Table 4.

Multivariate regression models for predictors of patient adherence

	Logistic Regression		Linear Regression
	Overall Adherence	Medication Adherence	β coefficient (SE)	p-value
	OR (95% CI)	OR (95% CI)
Trust-in-physician*	1.36 (1.09 – 1.69)	1.41 (1.14 – 1.75)	−0.41 (0.13)	0.003
Race
White	ref	ref	ref
African American	0.29 (0.13 – 0.64)	0.34 (0.16 – 0.71)	1.02 (0.49)	0.037
Age (per 10 years)	1.47 (1.08 – 2.02)	1.55 (1.15 – 2.09)	−0.46 (0.18)	0.01
Diagnosis
Crohn’s disease	ref	ref	ref
Ulcerative colitis	1.93 (0.85 – 4.35)	1.36 (0.63 – 2.91)	−0.26 (0.50)	0.60
SIBDQ Score*	1.04 (0.85 – 1.27)	1.08 (0.89 – 1.31)	−0.25 (0.13)	0.05
Education (yrs)	0.92 (0.76 – 1.11)	0.89 (0.74 – 1.08)	0.16 (0.11)	0.16
Married vs. non-married	0.68 (0.29 – 1.60)	0.63 (0.28 – 1.43)	0.40 (0.53)	0.45
Employed vs unemployed	1.95 (0.44 – 8.60)	1.44 (0.33 – 6.39)	−0.59 (0.97)	0.54
Household Income (US dollars)	1.00 (0.99 – 1.00)	1.00 (0.99 – 1.00)	0 (0)	0.96
Private vs non-private insurance	1.06 (0.32 – 3.48)	1.04 (0.33 – 3.23)	−0.15 (0.66)	0.94
Immunomodulator Use	0.87 (0.40 – 1.88)	0.95 (0.45 – 2.00)	0.19 (0.49)	0.70

^*Expressed in increments of half standard deviation units