Table 6.

Patient characteristics.

	With history of COVID-19‡		Without history of COVID-19‡		Chi2	t test†
	No.	%	No.	%
	81	100	72	100
Age (years)
Median	39.0		47.0			0.05∗
Mean	42.9		48.2
Range	18–84		18–82
Male	33	40.7	32	44.4	0.77
Female	48	59.3	40	55.6
Rheumatic disease	24	29.7	14	19.4	0.20
Inflammatory bowel disease	57	70.3	58	80.6
Unvaccinated against SARS-CoV-2§	8	9.8	2	2.7	0.14
Vaccinated against SARS-CoV-2§
One vaccination	71	87.7	69	95.8	0.46
Two vaccinations	65	80.2	68	94.4
Three vaccinations	47	58.0	64	88.9
Four vaccinations	3	3.7	6	8.3

3 patients did not provide information about their history of COVID-19; ^†welch modification; ^‡data obtained by 153 patients; ^§data obtained by 150 patients; COVID-19: coronavirus disease 2019; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2; ^∗p < 0.05.