Table 3.

Conditional logistic regression models for associated factors of SARS-CoV-2 infection (n = 670)

Variable	Unadjusted odds ratio (95% CI)	p-value	Model-1		Model-2		Model-3
			Adjusted odds ratio (95% CI)	p-value	Adjusted odds ratio (95% CI)	p-value	Adjusted odds ratio (95% CI)	p-value
Age groups (in years)
<30	Reference		Reference		Reference		Reference
30–39	1.10 (0.65–1.88)	.719	1.07 (0.61–1.86)	.809	1.06 (0.61–1.85)	.836	1.08 (0.61–1.89)	.782
40–49	0.53 (0.17–1.69)	.285	0.46 (0.14–1.52)	.204	0.44 (0.13–1.44)	.173	0.44 (0.13–1.45)	.176
≥50	0.59 (0.11–3.08)	.534	0.49 (0.09–2.64)	.407	0.51 (0.09–2.72)	.428	0.58 (0.11–3.13)	.522
Gender
Male	Reference		Reference		Reference		Reference
Female	0.95 (0.64–1.44)	.837	0.96 (0.63–1.45)	.833	0.94 (0.62–1.43)	.776	0.94 (0.61–1.43)	.779
Type of household
Extended family	Reference		Reference		Reference		Reference
Nuclear family	0.45 (0.18–1.09)	.079	0.42 (0.17–1.03)	.058	0.41 (0.17–1.01)	.052	0.43 (0.17–1.08)	.072
With friend or roommate	0.49 (0.19–1.26)	.137	0.45 (0.17–1.17)	.101	0.44 (0.16–1.15)	.094	0.47 (0.18–1.27)	.136
Living alone (either hostels or outside)	0.69 (0.28–1.72)	.429	0.65 (0.26–1.63)	.358	0.62 (0.25–1.58)	.322	0.69 (0.27–1.75)	.431
Do you have past h/o of COVID-19 disease*?
No	Reference				Reference		Reference
Yes	0.66 (0.37–1.17)	.152			0.63 (0.35–1.15)	.133	0.64 (0.35–1.15)	.135
Vaccination status
Not immunized	Reference						Reference
Partial immunized	0.87 (0.53–1.42)	.577					0.88 (0.53–1.46)	.631
Completely immunized	0.79 (0.53–1.15)	.220					0.78 (0.52–1.17)	.233

*The h/o of COVID-19 disease within last 12 months was considered.