Table 3.

Change in mortality with respect to one-percentage change in PCI recipients at the hospital level

	Change in mortalitya, % (95% CI)
	30-day	180-day
Crude modelb	−0.22* (− 0.11, − 0.33)	−0.25* (− 0.15, − 0.35)
Covariate-adjusted modelc	−0.21* (− 0.12, − 0.29)	−0.20* (− 0.12, − 0.29)

* P < 0.001

^a Fixed-effects estimates based on the panel data analysis (n = 156 × 7 hospital-years) and 95% CI based on robust standard error

^b Conditional on the number of patients per hospital-year, but no further adjustment by baseline characteristics

^c Conditional on the number of patients per hospital-year and adjusted for covariates including patient characteristics (as % of patients): gender, age group (18–59, 60–69, 70–79, and > 80 years), length of hospital stay (1–2, 3–5, and > 6 days), and prior-year hospitalization with key comorbidities (CHF, CVD, CPD and RD)

CHF congestive heart failure; CI confidence interval; CPD chronic pulmonary disease; CVD cerebrovascular disease; PCI percutaneous coronary intervention; RD renal disease