Table 7.

Effect of RIPC and nitrates (either intraoperative IV GTN or long-lasting oral nitrates) on perioperative myocardial infarction for ERICCA post-hoc analysis

	Unadjusted				Adjusteda
	OR	95% CI		p value	OR	95% CI		p value
Interaction nitrates * RIPC	1.78	1.06	3.00	0.029	1.82	1.08	3.06	0.025
Effect of RIPC in strata
No nitrates	0.70	0.51	0.96	0.025	0.69	0.50	0.95	0.025
Nitrates	1.24	0.83	1.87	0.299	1.26	0.84	1.89	0.271
Comparison of each combination
Control (sham RIPC without nitrates) (ref)
RIPC alone	0.70	0.51	0.96	0.025	0.69	0.50	0.95	0.025
Nitrates alone	0.68	0.46	1.01	0.056	0.69	0.46	1.03	0.069
RIPC + Nitrates	0.84	0.57	1.24	0.386	0.87	0.59	1.28	0.481

OR, odds ratio; CI, confidence interval

^aAdjusted for EuroSCORE, body mass index (BMI), previous myocardial infarction, and diabetes