Table 2.

The distribution of the study population according to the variables and the relation between the presence of Bacille Calmette–Guerin vaccine scar and other factors.

	All patients		BCG vaccine scar
			No		Yes
	n	%	n	%	n	%	P
Sex
Male	172	43.0	33	45.2	139	42.5
Female	228	57.0	40	54.8	188	57.5	.674*
Age
<30	133	33.2	20	27.4	113	34.6
30-49	177	44.2	31	42.5	146	44.6
≥50	90	22.5	22	30.1	68	20.8	.192*
BMI
Underweight-Normal	212	53.0	34	46.6	178	54.4
Overweight	117	29.2	19	26.0	98	30.0
Obese	71	17.8	20	27.4	51	15.6	.058*
Comorbidity
No	243	60.8	41	56.2	202	61.8
Yes	157	39.2	32	43.8	125	38.2	.375*
COPD
No	382	95.5	65	89.0	317	96.9
Yes	18	4.5	8	11.0	10	3.1	.008 † §
CAD
No	392	98.0	70	95.9	322	98.5
Yes	8	2.0	3	4.1	5	1.5	.164†
DM
No	377	94.2	65	89.0	312	95.4
Yes	23	5.8	8	11.0	15	4.6	.048 † ‡
HT
No	368	92.0	64	87.7	304	93.0
Yes	32	8.0	9	12.3	23	7.0	.132*
Smoking history
Smoker	106	26.5	18	24.7	88	26.9
Ex-smoker	72	18.0	19	26.0	53	16.2
nonsmoker	222	55.5	36	49.3	186	56.9	.140*
COVID-19
No	212	53.0	35	47.9	177	54.1
Yes	188	47.0	38	52.1	150	45.9	.339*
COVID-19 hospitalization
No	146	77.7	26	68.4	120	80.0
Yes	42	22.3	12	31.6	30	20.0	.126*
COVID-19 related ICU admission
No	180	95.7	34	89.5	146	97.3
Yes	8	4.3	4	10.5	4	2.7	.054†
Influenza vaccine history
No	247	61.8	49	67.1	198	60.6
Yes	153	38.2	24	32.9	129	39.4	.296*
BCG vaccine scar
0	73	18.2	73	100.0	0	0.0
1	254	63.5	0	0.0	254	77.7
≥2	73	18.2	0	0.0	73	22.3	-
Tuberculosis history
No	388	97.0	68	93.2	320	97.9
Yes	12	3.0	5	6.8	7	2.1	.049 † ‡
COVID-19 vaccine history
No	145	36.2	28	38.4	117	35.8
Yes	255	63.7	45	61.6	210	64.2	.679‡

BCG = Bacille Calmette–Guerin, BMI = body mass index, CAD = coronary artery disease, COPD = chronic obstructive pulmonary disease, COVID-19 = coronavirus disease 2019, DM = diabetes mellitus, HT = hypertension, ICU = Intensive care unit.

^*Chi-square test,

^†Fisher exact test,

^‡P < .05,

^§P < .01.