Table 2.

Univariate cause-specific Cox models hazard ratios with 95% confidence interval to assess the association of patients’ characteristics at baseline with each event, separately on each wave.

Factors	ICU or death without ICU, HR (95% CI)		Discharge without ICU, HR (95% CI)
	Wave 1 n = 920 N events = 300	Wave 2 n = 732 N events = 160	Wave 1 n = 920 N events = 489	Wave 2 n = 732 N events = 429
Age (per 10-year increment)	1.171 (1.092–1.256)	1.293 (1.156–1.446)	0.790 (0.755–0.826)	0.756 (0.719–0.800)
Gender, female as reference	1.625 (1.265–2.088)	1.128 (0.799–1.594)	0.962 (0.804–1.153)	0.830 (0.677–1.016)
Charlson comorbidity index, Score 0 as reference
Score 1	1.695 (1.078–2.667)	1.431 (0.593–3.454)	1.091 (0.820–1.452)	0.734 (0.530–1.017)
Score 2	1.898 (1.222–2.950)	1.310 (0.549–3.125)	0.716 (0.531–0.964)	0.550 (0.397–0.761)
Score 3	1.736 (1.100–2.740)	1.532 (0.655–3.585)	0.608 (0.443–0.834)	0.469 (0.334–0.659)
Score 4	1.372 (0.855–2.203)	1.783 (0.791–4.021)	0.497 (0.366–0.676)	0.243 (0.168–0.353)
Score ≥5	1.737 (1.190–2.535)	2.550 (1.230–5.288)	0.302 (0.232–0.393)	0.201 (0.148–0.272)
Factors	Death, HR (95% CI)		Discharge, HR (95% CI)
	Wave 1 n = 920 N events = 197	Wave 2 n = 732 N events = 121	Wave 1 n = 920 N events = 555	Wave 2 n = 732 N events = 443
Age (per 10-year increment)	1.689 (1.515–1.883)	1.969 (1.669–2.322)	0.808 (0.770–0.848)	0.778 (0.738–0.820)
Gender (female as reference)	1.396 (1.028–1.894)	0.812 (0.552–1.195)	0.899 (0.758–1.065)	0.789 (0.646–0.964)
Charlson comorbidity index, Score 0 as reference
Score 1	1.012 (0.448–2.714)	3.758 (0.439–32.18)	0.789 (0.609–1.021)	0.671 (0.487–0.923)
Score 2	2.287 (1.069–4.897)	2.619 (0.293–23.44)	0.551 (0.418–0.728)	0.573 (0.418–0.787)
Score 3	4.574 (2.233–9.370)	6.341 (0.803–50.08)	0.627 (0.465–0.844)	0.513 (0.368–0.715)
Score 4	3.689 (1.771–7.684)	12.870 (1.725–96.03)	0.641 (0.481–0.854)	0.345 (0.241–0.494)
Score ≥5	6.535 (3.413–12.515)	18.448 (2.564–132.72)	0.416 (0.323–0.536)	0.279 (0.208–0.373)

HR, hazard ratio; CI, confidence interval