Table 2. Univariate and multivariate Cox regression models for all-cause in-hospital mortality with baseline cardiac troponin I.

Predictor	Univariate				Multivariate
	HR	95% CI	P-value		HR	95% CI	P-value
AF: atrial fibrillation; BP: blood pressure; CHF: chronic heart failure; CKD: chronic kidney disease; CRP: C-reactive protein; SpO2: oxygen saturation.
Age	1.06	1.04−1.08	< 0.001		1.07	1.04−1.09	< 0.001
Increased baseline troponin	2.73	1.99−3.74	< 0.001		1.61	1.06−2.52	0.039
CKD	2.66	1.71−4.15	< 0.001		1.01	0.45−1.93	0.854
CHF	1.86	1.16−2.99	0.010		1.00	0.47−2.29	0.928
AF	1.83	1.20−2.79	0.005		1.55	0.86−2.77	0.143
Dyspnoea	1.74	1.26−2.41	0.001		2.29	1.48−3.54	< 0.001
Systolic BP	0.99	0.98−1.00	0.094		1.00	0.99−1.01	0.475
SpO2	0.96	0.94−0.97	< 0.001		0.98	0.95−1.01	0.202
Haemoglobin	0.99	0.99−1.00	0.111		1.00	0.99−1.01	0.870
White blood cells	1.02	1.00−1.05	0.051		0.96	0.91−1.02	0.215
Creatinine	1.30	1.17−1.45	< 0.001		1.25	1.00−1.58	0.052
D-dimer	1.01	1.01−1.02	0.003		1.00	1.00−1.00	0.183
CRP	1.01	1.00−1.01	< 0.001		1.00	1.00−1.01	0.001