Table 3.

Relationship between post-COVID-19 and Charlson Comorbidity Index (p < 0.0001 at chi-squared test).

Charlson Comorbidity Index	Post-COVID-19 Syndrome
	No Post-COVID-19 Syndrome			Post-COVID-19 Syndrome
	n	c	r	n	c	R
0 points	143	59.1%	11.4%	1107	32.6%	88.6%
1 point	51	21.1%	5.3%	907	26.7%	94.7%
2 points	22	9.1%	3.4%	620	18.3%	96.6%
3 points	14	5.8%	3.4%	396	11.7%	96.5%
4 points	7	2.9%	3.0%	223	6.6%	96.9%
5 points	1	0.4%	1.2%	84	2.5%	98.8%
≥6 points	4	1.7%	6.5%	57	1.7%	93.4%

Legend: n = absolute number; c = column percentage; r = row percentage.