CRP and myocardial infarction: In the clinical model prior myocardial infarction (OR = 3.31, 95% CI = 1.37–8.12, p = 0.008), SpO2 (OR = 0.94, 95% CI = 0.89–0.98, p = 0.005) and CRP (OR = 1.95, 95% CI = 1.51–2.58, p < 0.001) remained statistically significant.