Table 4.

Crude and adjusted parameter estimates of patient characteristics associated with participation in clinical trials conducted by principal investigators who speak a language beyond English.

	Crude Models			Final Adjusted Model
Model Parameters	β (SE)	Odds Ratio (OR)	P-value	β (SE)	Odds Ratio (OR)	P-value
Intercept	–	–	–	−0.36 (0.24)	–	0.1432
Patient Characteristics
Ethnicity
Non-Hispanic or Latino	−0.68 (0.07)	1.00	<0.0001	REF
Hispanic or Latino	0.32 (0.07)	2.04 (1.58, 2.64)	<0.0001	0.49 (0.08)	2.67 (1.97, 3.62)	<0.0001
Sex
Male	−0.93 (0.03)	1.00	<0.0001	REF
Female	−0.34 (0.03)	0.52 (0.45, 0.59)	<0.0001	−0.29 (0.04)	0.56 (0.48, 0.64)	<0.0001
Race
White	−0.36 (0.17)	1.00	0.0381	REF
American Indian or Alaskan Native	−0.62 (0.41)	1.06 (0.41, 2.71)	0.1280	−0.73 (0.42)	0.96 (0.36, 2.53)	0.0868
Asian	0.29 (0.24)	2.62 (1.69, 4.05)	0.2383	0.61 (0.26)	3.65 (2.80, 5.84)	0.0181
Black	−0.33 (0.19)	1.42 (1.16, 1.73)	0.0821	−0.01 (0.20)	1.95 (1.57, 2.43)	0.9557
Other Pacific Islander	1.34 (0.55)	7.50 (1.99, 28.34)	0.0153	0.81 (0.59)	4.43 (1.07, 18.39)	0.1725
Age
18.00–29.00	−1.30 (0.05)	1.00	<0.0001	REF
29.01–39.00	−0.72 (0.14)	2.42 (1.32, 4.43)	<0.0001	−0.74 0.15)	2.81 (1.50, 5.27)	<0.0001
39.01–49.00	0.32 (0.11)	6.87 (3.90, 12.10)	0.0038	0.20 (0.12)	7.16 (3.94, 13.03)	0.1015
49.01–59.00	0.54 (0.09)	8.57 (4.98, 14.76)	<0.0001	0.53 (0.09)	9.93 (5.60, 17.63)	<0.0001
59.01–69.00	0.69 (0.07)	9.94 (5.83, 16.94)	<0.0001	0.73 (0.08)	12.22 (6.85, 21.81)	<0.0001
69.01–79.00	0.47 (0.08)	7.94 (4.64, 13.59)	<0.0001	0.61 (0.10)	10.81 (5.94, 19.67)	<0.0001
79.01+	0.31 (0.11)	6.76 (3.84, 11.91)	0.0057	0.43 (0.13)	9.05 (4.83, 16.96)	0.0007
Insurance
Private	−1.04 (0.14)	1.00	<0.0001	REF
Medicaid	−0.27 (0.17)	0.77 (0.58, 1.03)	0.1237	−0.00 (0.19)	0.87 (0.64, 1.19)	0.9993
Medicare	0.21 (0.15)	1.28 (1.10, 1.48)	0.1566	−0.05 (0.17)	0.83 (0.67, 1.02)	0.7536
Self-Pay	0.02 (0.19)	1.06 (0.74, 1.51)	0.9195	0.01 (0.21)	0.88 (0.60, 1.29)	0.9556
Worker's Compensation	0.06 (0.54)	1.10 (0.29, 4.17)	0.9177	−0.10 (0.60)	0.79 (0.18, 3.42)	0.8723