Table 2.

Multiple Linear Regression of Estimated Change (CI 95%) in Oxygen Saturation, Heart Rate, and Respiratory Rate by Age and Sex

	Oxygen saturation		Heart rate		Respiratory rate
Characteristic	Value (CI 95%)	p value	Value (CI 95%)	p value	Value (CI 95%)	p value
Coefficenta	83.6 (82.5; 84.7)	<0.01	86.4 (81.0; 91.8)	<0.01	21.6 (21.1; 22.1)	<0.01
Age (yr)
7–8	0.0 (−1.7; 1.8)	0.96	−9.2 (−14.5; −4)	<0.01	−1.1 (−2.3; −1)	0.01
9–10	0.8 (−0.5; 2.2)	0.22	−6.8 (−10.9; −2.8)	<0.01	−1.7 (−2.3; −1)	<0.01
11–12	2.7 (1.0; 4.5)	<0.01	−5.2 (−10.5; 0.1)	0.05	−2.5 (−3.3; −1.6)	<0.01
13–14	4.3 (2.7; 5.9)	<0.01	−5.6 (−10.4; −0.7)	0.02	−2.8 (−3.6; −2.1)	<0.01
15–16	4.5 (3.0; 6.1)	<0.01	−10.9 (−15.5; −6.3)	<0.01	−3.6 (−4.4; −2.9)	<0.01
Male	0.5 (−0.5; 1.4)	0.31	0.2 (−2.7; 3.1)	0.89	0.3 (−0.2; −0.7)	0.23

^aCorresponds to females aged 5 to 6 yr.