Table 4.

Incremental duration of stay after MI and CAR adjusted for patient comorbidities and hospital operative volume characteristics^*.

	Adjusted incremental increase in duration of stay after MI or CR
	MI (days)	95% CI	CA (days)	95% CI
Very low	4.62	3.2–6.0	13.80	−6.0–12.9
Low	4.13	1.1–7.2	3.44	−6.1–12.1
Moderate	2.23	0.1–4.3	2.95	−7.6–10.3
High	3.06	0.8–5.3	1.36	−3.6–15.5
Very high	4.28	1.4–7.1	5.97	−6.0–12.9

^*Model included age, sex, and patient comorbidities, including heart failure, coronary artery disease, prior MI, chronic pulmonary disease, peripheral vascular disease, diabetes, renal failure, hospital bed size, hospital teaching status, hospital region, and operation type only for patients who survived to discharge.