Association of socio-economic deprivation with COVID-19 incidence and fatality during the first wave of the pandemic in Italy: lessons learned from a local register-based study

Table 3 Comorbidities in the COVID-19 case group

Variable	N	%	χ2(p) applied to age groups	χ2(p) applied to SEHDI groups
Comorbidity
No	716	67.9	p = 0.000*	p = 0.731
Yes	338	32.1	p = 0.000*	p = 0.731
Type of comorbidity
Cancer	36	3.4	p = 0.000*	p = 0.333
Diabetes	70	6.6	p = 0.000*	p = 0.377
Cardiovascular diseases	219	20.8	p = 0.000*	p = 0.559
HIV infection	8	0.8	p = 0.382	p = 0.331
Chronic lung diseases	46	4.4	p = 0.002*	p = 0.316
Kidney diseases	33	3.1	p = 0.000*	p = 0.588
Other metabolic diseases	14	1.3	p = 0.022*	p = 0.070
Obesity:
BMI between 30 and 40 kg/m²	13	1.2	p = 0.810	p = 0.824
BMI > 40 kg/m²	10	1.0	p = 0.309	p = 0.822
Liver diseases	12	1.1	p = 0.000*	p = 0.237
Neurological diseases	34	3.2	p = 0.000*	p = 0.133
Other diseases	53	5.0	p = 0.001*	p = 0.830

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