Table 2: Multivariable analysis of potential confounders, including age, RSV detection and breastfeeding status, and 25-OH Vitamin D sufficiency among 90 children hospitalized for viral respiratory tract infections.

VDI (< 30 ng/mL) vs. VDS (≥ 30 ng/mL)

OR

(95% CI)

Age

≤ 3 month

1.30

(0.32,5.25)

4-12 months

0.40

(0.11,1.48)

> 12 months

Ref

RSV detection

 

 

No

Ref

 

Yes

2.72

(0.93,7.94)

Breast feeding

No

Ref

Any (Mixed/Exclusive)

4.21

(1.54,11.54)

 

Note: Odds ratios (ORs) and 95% confidence interval (95% CI) obtained in logistic regression models; Ref, reference group.