Table 4. Predictability of patient-physician communication on medication beliefs.

	BMQ-overuse			BMQ-harm
	βa	STD βb	P value	β	STD β	P value
(Intercept)	14.97	0	< 0.0001	13.31	0	< 0.0001
Age
Non-elderly (≤ 64)	Reference
Young old (65–75)	-0.24	-0.04	0.66	0.10	0.02	0.86
Medium or Oldest old (≥ 76)	-0.32	-0.05	0.61	0.12	0.02	0.85
Gender
Male	Reference
Female	1.29	0.19	0.01**	0.74	0.11	0.12
Education
≤ Middle School	Reference
High school or graduate	1.90	0.32	0.09	0.12	0.02	0.91
Some college	2.68	0.43	0.02*	0.37	0.06	0.75
≥ College graduate	2.66	0.39	0.02*	-0.00	-0.00	1.00
Race
Non-Hispanic White	Reference
Non-Hispanic Black	0.44	0.07	0.32	0.44	0.08	0.31
Others	-0.55	-0.04	0.54	0.42	0.03	0.63
Income
Low	Reference
Lower middle	-0.16	-0.02	0.78	-0.01	-0.00	0.98
Middle	0.46	0.07	0.41	-1.12	-0.16	0.04*
High	-0.76	-0.05	0.45	-2.39	-0.17	0.02**
Living status
Alone	Reference
With spouse	-1.49	-0.25	0.32	-0.96	-0.16	0.52
Others	0.82	-0.11	0.13	-0.66	-0.09	0.22
Marital status
Married	Reference
Divorced/Separated	-0.44	-0.06	0.77	-1.17	-0.17	0.42
Widowed	-0.74	-0.12	0.62	-1.57	-0.26	0.28
Never married	-2.43	-0.21	0.14	-1.57	-0.14	0.34
Comorbidity class
0	Reference
1	-0.86	-0.14	0.08	0.41	0.07	0.39
2	-0.69	-0.11	0.15	-0.39	-0.06	0.41
Patient—physician communication
Informative domain	-0.00	-0.03	0.84	-0.00	-0.00	0.98
Interpersonal domain	-0.05	-0.28	0.05*	-0.04	-0.25	0.09
Mean period of hypertension	0.02	0.06	0.35	-0.02	-0.07	0.28
R2	0.27			.25

Notes:

^aβ means regression coefficient.

^bSTD β means standardized beta coefficient.

*: p < .05,

**: p < .01

Abbreviations: Low (< $29,531), Lower middle ($29,531–$44,297), Middle ($44,294–$88,594), High (> $88,594).