Table 1.

Demographic features of groups according to presence of BCG vaccine scar and Coronavirus disease 2019 history.

		n	Mean	Std. deviation	P
Age			39.65	13.53
BMI			25.35	4.83
Smoking history (pack-year)			6.89	13.86
	BCG vaccine scar presence
Age	No	73	42.26	14.81
	Yes	327	39.06	13.18	.068*
BMI	No	73	26.30	5.50
	Yes	327	25.14	4.65	.098*
	COVID-19 history
Age	No	212	39.18	13.35
	Yes	188	40.16	13.75	.470*
BMI	No	212	24.87	4.15
	Yes	188	25.89	5.46	.036 * †

^* Fisher exact test,

^†P < .05.

BCG = Bacille Calmette–Guerin, BMI = body mass index, COVID-19 = coronavirus disease 2019.