Table 3.

Predictors of Receiving PCI

	Age- and Sex-Adjusted Models		Multivariable-Adjusted Model†
	OR (95% CI)	p-value	OR (95% CI)	p-value
Age	1.03 (0.99–1.09)	0.18	1.05 (0.98–1.13)	0.20
Female	1.46 (0.59–3.74)	0.42	1.65 (0.50–5.75)	0.42
Prefer OMT over PCI‡	0.55 (0.16–1.71)	0.32	0.41 (0.09–1.70)	0.24
Black	0.93 (0.35–2.47)	0.88
Education Level	1.10 (0.75–1.60)	0.63
History of PCI	4.28 (1.58–12.28)	0.01	5.59 (1.76–20.23)	0.01
History of MI	1.82 (0.62–5.50)	0.27
Decision Involvement§	2.38 (1.07–6.19)	0.05	2.48 (0.86–8.36)	0.11
Seattle Angina Score	1.01 (0.99–1.03)	0.27
Importance of Cost*	0.65 (0.25–1.64)	0.37
Insurance (Ref: Private Insurance)**
Medicaid/No Insurance	0.23 (0.01–2.14)	0.24	0.29 (0.01–2.92)	0.34
Medicare	0.40 (0.11–1.29)	0.13	0.32 (0.06–1.36)	0.14
Other	0.11 (0.01–0.51)	0.01	0.05 (0.00–0.34)	0.01

Notes: Bolded predictors reached a p-value < 0.05 in the multivariable-adjusted model. ^†To avoid model overfitting, the multivariable-adjusted model was created by including only age, sex, preference for OMT, and predictors with p-value < 0.10 in age- and sex-adjusted models. ^‡Prefer OMT over PCI refers to whether patient expressed an ultimate treatment preference for OMT instead of PCI. ^§Decision involvement refers to amount of a patient’s desired decision-making involvement (ordinal 5 point scale. 1 = patient did not want to be involved in decision-making, 5 = patient wanted to make decision completely on their own). *Importance of cost refers to patient-reported importance of out-of-pocket costs in making decision (0=no or minor effect, 1 = moderate or major effect). **Insurance odds ratios are in reference to patients with private insurance.

Abbreviations: OMT, optimal medical therapy; PCI, percutaneous coronary intervention; OR, odds ratios; CI, confidence interval; MI, myocardial infarction.