 ### Description

Rusconi et al developed an equation for determining the distribution of respiratory rates in children from 0 to 3 years of age. The authors are from the University of Milano in Italy.

For an awake child, the 95th percentile for the respiratory rate is:

respiratory rate at 95th percentile =

= 10 ^ (1.82144 - (0.0125995 * (age in months)) + (0.00013401 * ((age in months)^2)))

For an asleep child, the 95th percentile for the respiratory rate is:

respiratory rate at 95th percentile =

= 10 ^ (1.72858 - (0.0139928 * (age in months)) + (0.00017646 * ((age in months)^2)))

The general equation for the exponent at a given percentile in the awake child is:

respiratory rate at Yth percentile =

= 10 ^ X

X =

= (1.6801 + (0.08592 * Z)) - ((0.01189 + (0.0004301 * Z)) * (age in months)) + (0.00013401 * ((age in months)^2)))

The general equation for the exponent at a given percentile in the asleep child is:

respiratory rate at Yth percentile =

= 10 ^ X

X =

= (1.5773 + (0.09196 * Z)) - ((0.01314 + (0.0005155 * Z)) * (age in months)) + (0.00017646 * ((age in months)^2)))

where:

 Yth Percentile Value for Z 5 -1.65 10 -1.282 25 -0.675 50 0 75 0.675 90 1.282 95 1.645 97.5 1.960 99 2.326