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Table 4 Multivariate analysis for length of hospital stay (dependent variable), and HRV adjusting other risk factors

From: Severe lower respiratory tract infection in infants and toddlers from a non-affluent population: viral etiology and co-detection as risk factors

 

Yes

No

β*

95% CI

p

 

Mean

(95% CI)

Mean

(95% CI)

   

HRV

7.7

(6.1 - 9.3)

5.5

(4.7 - 6.2)

2.2

(0.5 - 3.9)

0.011

Sex (female)

6.8

(5.6 - 8.0)

6.3

(5.4 - 7.3)

0.4

(-0.6 - 1.5)

0.419

Age <6 months

8.2

(7.0 - 9.3)

5.0

(3.9 - 6.0)

3.2

(2.0 - 4.3)

<0.001

Family Hx of asthma

7.2

(6.2 - 8.2)

6.0

(4.8 - 7.1)

1.2

(0.1 - 2.3)

0.035

Prematurity

6.7

(5.4 - 7.9)

6.5

(5.5 - 7.4)

-0.2

(-1.4 - 1.0)

0.749

Maternal smoking

6.8

(5.6 - 8.2)

6.3

(5.3 - 7.2)

0.6

(-0.6 - 1.8)

0.354

  1. Hx: history; * number of extra days in hospital, compared to negative counterparts.