Table 2.

Cellular parameters collected from COVID-19 patients and healthy controls

A						B
Variables	CL, n = 31	3 months post-COVID-19, n = 29	6 months post-COVID-19, n = 23	12 months post-COVID-19, n = 20	P-value (COVID-19 vs CL)	3 months post-COVID-19 w/o PE, n = 19	3 months post-COVID-19 with PE, n = 10	6 months post-COVID-19 w/o PE, n = 15	6 months post-COVID-19 with PE, n = 8	12 months post-COVID-19 w/o PE, n = 13	12 months post-COVID-19 with PE, n = 7	P-value (COVID-19 with PE vs w/o PE)
Appearance of ECFC colonies (%)	15 (48.4%)	24 (82.8%)**	20 (87.0%)**	17 (85.0%)**	P < 0.05	15 (79.0%)	9 (90.0%)	14 (93.3%)	6 (75.0%)	11 (84.6%)	6 (85.7%)	ns
Number of ECFC colonies	1.23 ± 1.86	2.79 ± 2.41*	2.78 ± 2.00*	2.90 ± 2.61*	P < 0.05	2.47 ± 2.17	3.40 ± 2.84	2.73 ± 1.62	2.88 ± 2.70	2.62 ± 2.29	3.43 ± 2.26	ns
Time for ECFC to appear (days)	14.3 ± 4.76	11.6 ± 4.73	10.8 ± 3.23	12.1 ± 4.10	ns	11.7 ± 3.81	11.4 ± 6.23	11.6 ± 3.25	8.67 ± 2.16	12.1 ± 4.89	12.0 ± 2.45	ns

CL healthy control, PE Pulmonary embolism, ECFC endothelial colony-forming cells

A. Cellular parameters of post-COVID-19 patients at different time points after overcoming COVID-19 (3, 6 and 12 months). Values expressed as mean ± SD. Ordinary one-way ANOVA followed by Tukey´s multiple comparisons test for parametric tests, Kruskal–Wallis test followed by Dunn’s multiple comparisons test for non-parametric tests and Chi squared test for categorical variables, *P < 0.05, **P < 0.01

B. Cellular parameters of 3,6 and 12-months post-COVID-19 patients, with or w/o pulmonary embolism (PE). Values expressed as mean ± SD. Unpaired t test for parametric tests, Mann–Whitney test for non-parametric tests and Chi squared test for categorical variables, P > 0.05