Table 2. General characteristics and risk factors of the study population.

RT-PCR - reverse transcription-polymerase chain reaction

General characteristics	RT-PCR positive n=126 (33.2%)	RT-PCR negative n=253 (66.8%)	p-value
Mean age (in years) ±SD	36.6 ± 12.4	34.5 ± 10.7	0.09
Sex			0.7
Male	80 (63.5)	165 (65.2)
Female	46 (36.5)	88 (34.8)
Socioeconomic status (Kuppuswamy index)			0.610
Upper	18 (14.5)	37 (14.7)
Upper middle	17 (13.7)	26 (10.4)
Lower middle	21 (16.9)	33 (13.1)
Upper lower	46 (37.1)	98 (39.0)
Lower	22 (17.7)	57 (22.7)
Occupation			0.009
Doctor/ Faculty	3 (2.4)	4 (1.6)
Doctor/ Resident	16 (12.7)	78 (31.2)
Nursing officer	8 (6.3)	10 (4.0)
Laboratory technician	6 (4.8)	10 (4.0)
OT technician	6 (4.8)	9 (3.6)
Security guard	6 (4.8)	3 (1.2)
Housekeeping staff	20 (15.9)	31 (12.4)
Others	61 (48.4)	108 (43.2)
Overcrowding at home	17 (13.5)	39 (15.4)	0.619
Mode of commute to workplace			0.452
Alone	19 (15.1)	44 (17.4)
Public transport with single occupancy	2 (1.6)	9 (3.6)
Public transport with multiple occupancy	105 (83.3)	200 (79.1)