Table 3.

Association between quantitative variables and quality of life outcomes, according to the different domains of the SF-36 test 1 year after hospital admission.

Quantitative variables	Correlation * between quantitative variables and quality of life outcomes, according to SF-36 domain
	Physical functioning		Physical role		Bodily pain		General health		Vitality		Social functioning		Emotional role		Mental health
	rs	p	rs	p	rs	p	rs	p	rs	p	rs	p	rs	p	rs	p
Medical history
Age* (n = 486)	−0.302	<0.001	−0.036	0.440	−0.054	0.230	−0.132	0.004	−0.032	0.480	0.025	0.590	0.086	0.059	0.052	0.250
Age-adjusted Charlson Comorbidity Index (n = 486)	−0.294	<0.001	−0.059	0.200	−0.077	0.092	−0.166	<0.001	−0.043	0.350	0.006	0.900	0.067	0.140	0.038	0.410
Clinical outcomes
Hospital stay (days) (n = 486)	−0.188	<0.001	−0.650	0.150	−0.091	0.045	−0.074	0.100	−0.016	0.720	−0.084	0.064	−0.050	0.27	0.038	0.410
ICU admission (days) (n = 100)	−0.043	0.670	0.067	0.510	−0.017	0.870	0.016	0.870	0.011	0.920	−0.047	0.640	0.043	0.670	0.029	0.780
PaO2/FiO2 at admission (n = 385)	0.124	0.015	0.005	0.920	0.047	0.360	0.069	0.180	−0.035	0.490	0.038	0.460	0.040	0.430	−0.040	0.430
FiO2 at admission (%) (n = 486)	−0.098	0.031	−0.021	0.640	−0.084	0.064	−0.024	0.590	0.058	0.200	−0.019	0.670	−0.034	0.460	−0.022	0.620
Min PaO2/FiO2 (n = 381)	0.017	0.750	−0.069	0.180	−0.020	0.700	−0.033	0.520	−0.132	0.010	−0.008	0.880	0.023	0.660	−0.116	0.023
Max FiO2 (%) (n = 486)	−0.145	0.001	−0.006	0.900	−0.029	0.520	−0.054	0.230	0.043	0.350	−0.018	0.690	−0.048	0.290	0.035	0.440
Analytical parameters
Lymphopenia at admission (/μL) (n = 484)	−0.021	0.640	−0.084	0.064	−0.077	0.089	−0.060	0.190	−0.096	0.034	−0.031	0.500	−0.070	0.880	−0.062	0.180
CRP at admission (mg/L) (n = 486)	0.017	0.720	0.089	0.049	0.075	0.100	0.086	0.058	0.150	0.001	0.033	0.470	0.057	0.210	0.114	0.010
Ferritin at admission (μg/L) (n = 443)	0.233	<0.001	0.127	0.007	0.185	<0.001	0.170	<0.001	0.222	<0.001	0.164	0.001	0.135	0.005	0.211	<0.001
IL-6 at admission (ng/L) (n = 285)	0.043	0.470	0.114	0.055	0.088	0.140	0.054	0.360	0.138	0.020	−0.017	0.780	0.066	0.270	0.106	0.073
D-dimer at admission (ng/mL) (n = 431)	−0.068	0.160	−0.031	0.520	−0.034	0.480	0.003	0.950	0.030	0.540	−0.014	0.770	0.009	0.850	0.008	0.880
Min lymphocytes during admission (/μL) (n = 484)	0.045	0.320	−0.036	0.430	−0.039	0.390	−0.051	0.270	−0.069	0.130	−0.006	0.890	0.003	0.940	−0.094	0.039
Max RCP during admission (mg/L) (n = 485)	−0.001	0.980	0.072	0.110	0.088	0.054	0.070	0.120	0.135	0.003	0.023	0.610	0.045	0.330	0.112	0.014
Max ferritin during admission (mcg/L) (n = 447)	0.169	<0.001	0.100	0.028	0.167	<0.001	0.153	0.001	0.177	<0.001	0.171	<0.001	0.103	0.025	0.188	<0.001
Max IL-6 during admission (ng/L) (n = 357)	−0.035	0.510	0.001	0.980	0.041	0.440	−0.028	0.600	0.088	0.098	−0.063	0.240	0.004	0.950	0.031	0.570
Max d-dimer during admission (ng/mL) (n = 480)	−0.124	0.006	−0.058	0.200	−0.034	0.460	<0.001	1.000	0.026	0.580	−0.046	0.320	−0.032	0.490	0.028	0.540
Total days of corticosteroid treatment (n = 486)	−0.049	0.280	−0.043	0.350	0.060	0.190	−0.031	0.490	0.001	0.980	−0.014	0.750	−0.028	0.530	0.009	0.840

CRP, C reactive protein; IQR, Interquartile range. ^*Correlation presented as Spearman’s rho (rs), except in the case of age, where it is Pearson’s correlation coefficient.

Values in bold have reached statistical significance.