Table 2.

Multivariable cox regression models for progression to HCoV LRTI

		Model 1		Model 2		Model 3
Covariates	Categories	HR (95% CI)	P	HR (95% CI)	P	HR (95% CI)	P
Combined steroid and glucose, mg/dL*†	Steroid + glucose (>150) vs no steroid	4.73 (1.60-14.0)	<.01	4.83 (1.61-14.5)	<.01
	Steroid + glucose (≤150 or unknown) vs no steroid	1.51 (0.58-3.98)	.4	1.44 (0.54-3.84)	.47
Transplant number	Second or higher HCT vs first HCT	1.56 (0.63-3.90)	.34			2.17 (0.92-5.09)	.08
ISI‡	As continuous			1.07 (0.89-1.28)	.47	1.14 (0.97-1.34)	.12

Total of 25 LRTI events among 279 patients presenting with first HCoV URTI.

^*Systemic steroids in the 2 weeks before HCoV diagnosis.

^†Using nearest value within 2 weeks before HCoV diagnosis.

^‡At HCoV diagnosis.