Table 3. Characteristics of patients who underwent surgery.

Variable		Total patients n = 249	COVID-19 (-) n = 236 (94.8%)	COVID-19 (+) n = 13 (5.2%)	p value
Age, years (mean ± SD)		34.64 ± 20.68	33.94 ± 20.71	47.15 ± 15.88	.025
Age groups
	<10 years	39 (15.7%)	39 (16.5%)
	10–19 years	27 (10.8%)	26 (11%)	1 (7.7%)
	20–29 years	35 (14.1%)	34 (14.4%)	1 (7.7%)
	30–39 years	39 (15.7%)	38 (16.1%)	1 (7.7%)
	40–49 years	31 (12.4%)	27 (11.4%)	4 (30.8%)
	50–59 years	39 (15.7%)	37 (15.7%)	2 (15.4%)
	60–69 years	32 (12.9%)	28 (11.9%)	4 (30.8%)
	≥ 70 years	7 (2.8%)	7 (3%)
Sex
	Female	129 (51.8%)	124 (52.5%)	5 (38.5%)	.398
	Male	120 (48.2%)	112 (47.5%)	8 (61.5%)
Major surgery in last three months
	Yes	29 (11.6%)	24 (10.2%)	5 (38.5%)	.010
	No	220 (88.4%)	212 (89.8%)	8 (61.5%)
Hypertension
	Yes	16 (6.4%)	12 (5.1%)	4 (30.8%)	.006
	No	233 (93.6%)	224 (94.9%)	9 (69.2%)
Diabetes mellitus
	Yes	19 (7.6%)	16 (6.8%)	3 (23.1%)	0.066
	No	230 (92.4%)	220 (93.2%)	10 (76.9%)
Smoking history
	Yes	52 (20.9%)	49 (20.8%)	3 (23.1%)	.737
	No	197 (79.1%)	187 (79.2%)	10 (76.9%)
ASA class
	I	133 (53.4%)	125 (53.0%)	8 (61.5%)
	II	47 (18.9%)	44 (18.6%)	3 (23.1%)
	III	13 (5.2%)	13 (5.5%)
	IV	35 (14.1%)	33 (14.0%)	2 (15.4%)
	V	21 (8.4%)	21 (8.9%)
	I and II combined	180 (72.3%)	169 (71.6%)	11 (84.6%)	.307
	III, IV, and V combined	69 (27.7%)	67 (28.4%)	2 (15.4%)
Anesthesia given
	General	207 (83.1%)	195 (82.6%)	12 (92.3%)	.364
	Spinal / Local	36 (14.5%) / 6 (2.4%)	35 (14.8%) / 6 (2.5%)	1 (7.7%) / 0
Rank of the primary surgeon
	Resident/ Medical officer/ Registrar	42 (16.9%)	38 (16.1%)	4 (30.8%)	.353
	Assistant professor	119 (47.8%)	112 (47.5%)	7 (53.8%)
	Associate professor	53 (21.3%)	52 (22.0%)	1 (7.7%)
	Professor	35 (14.1%)	34 (14.4%)	1 (7.7%)
30-day mortality
	No	247 (99.2%)	235 (99.6%)	12 (92.3%)	.102
	Yes	2 (0.8%)	1 (0.4)	1 (7.7%)