Table 2.

Mixed-Effects Logistic Regression Models for ARI Using Vitamin D and Other Biomarkers

Models	Estimate (Standard Error)	P
25(OH)D3, ng/mL
Time, mo	–0.0085 (0.026)	.747
25(OH)D3, ng/mL	–0.0126 (0.020)	.525
Time*25(OH)D3	0.0005 (0.001)	.495
Free25(OH)D, pg/mL
Time, mo	0.0085 (0.025)	.734
Free25(OH)D, pg/mL	0.0284 (0.073)	.698
Time*Free25(OH)D	–0.0004 (0.003)	.893
1,25(OH)2D3, pg/mL
Time, mo	0.0110 (0.038)	.771
1,25(OH)2D3, pg/mL	–0.0122 (0.018)	.500
Time*1,25(OH)2D3	–0.0001 (0.001)	.936
PTH, pg/mL
Time, mo	0.0126 (0.026)	.632
PTH, pg/mL	0.0007 (0.014)	.96
Time*PTH	–0.0001 (0.001)	.807

Abbreviation: ARI, acute respiratory infection.