Table 2. Adjusted hazard ratios and 95% confidence intervals for episodes of SARS-CoV-2 infection by comorbidities and individual socioeconomic status, Catalonia, Spain, 30 April 2020.

Characteristics	Adjusted hazard ratio	Lower 0.95 CI	Upper 0.95 CI	p value
Hypertension	0.93	0.68	1.27	0.65
Diabetes	1.17	0.81	1.70	0.40
Heart failure	1.24	0.76	2.04	0.40
COPD	1.59	1.08	2.35	0.01
Chronic renal disease	1.30	0.87	1.95	0.20
Asthma	1.19	0.78	1.82	0.40
Dementia	4.33	2.61	7.17	< 0.001
Liver cirrhosis	0.70	0.10	5.03	0.72
Stroke	1.38	0.88	2.16	0.16
Coronary artery disease	1.27	0.77	2.10	0.35
Cancer	1.05	0.73	1.52	0.79
Current smoker	0.67	0.46	0.93	0.03
Former smoker	1.32	0.95	1.82	0.10
IS level < 18,000 €	1.04	0.55	1.99	0.90
IS level 18,001–100,000 €	0.85	0.44	1.68	0.60
IS level > 100,000 €	0.79	0.10	6.17	0.80
CQ/HCQ exposure	1.08	0.83	1.44	0.50

CI: confidence interval; COPD: chronic obstructive pulmonary disease; CQ/HCQ: chloroquine/hydroxychloroquine; IS level: individual socioeconomic level; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2.