Table 2.

Mean spectral and spectro-temporal parameters by auscultation site, and corresponding one-way analysis of variance

	Mean (5 and 95 % percentiles)					ANOVA
	Overall	Anterior superior	Anterior-lateral inferior	Posterior superior	Posterior inferior	P value
Respiratory rate (breaths/min)	26.2 [21.5, 38.9]
Heart rate (beats/min)	112.5 [90.0, 143.9]
MFCC1	4.9 [4.2, 5.4]	4.7 [3.8, 5.7]	4.7 [3.9, 5.6]	5.2 [4.0, 6.1]	5.1 [3.7, 6.2]	<0.001
MFCC2	0.1 [−0.4, 0.6]	0.08 [−0.5, 0.5]	0.1 [−0.5, 0.6]	0.2 [−0.6, 0.8]	0.2 [−0.4, 0.8]	0.17
MFCC3	1.1 [0.8, 1.4]	1.0 [0.6, 1.3]	1.0 [0.7, 1.4]	1.1 [0.7, 1.5]	1.1 [0.7, 1.5]	<0.001
Spectral width (PW)	158.3 [93.9, 237.2]	174.9 [91.2, 260.1]	168.0 [84.5, 250.1]	139.3 [77.9, 232.0]	138.1 [71.8, 199.8]	<0.001
Spectral slope (SL)	−10.1 [−11.1, −8.1]	−10.4 [−13.0, −8.1]	−10.4 [−12.1, −8.8]	−10.7 [−12.6, −0.03]	−10.6 [−12.8, −7.6]	0.18
Power ratio (PR)	0.993 [0.980, 1.00]	0.991 [0.975, 0.999]	0.992 [0.977, 0.999]	0.991 [0.981, 0.999]	0.991 [0.976,0.999]	0.85
Power of regression line(PLN)	9,729.6 [6,473.1, 12,135.4]	10,234.0 [6,011.8, 15,494.7]	10,382.5 [6,692.4, 14,396.8]	10,921.6 [5,786.2, 14,795.6]	10,524.8 [4,251.8, 15,314.3]	0.30
Scales1 × IE—3	94.6 [78.0, 110.1]	99.2 [73.5, 122.2]	95.8 [67.5, 119.2]	90.5 [57.1, 123.1]	90.9 [53.6, 122.5]	0.002
${\text{Rates}}_1^{+}\times 1\mathrm{E}-3$	19.0 [12.7, 24.2]	16.2 [6.9, 24.9]	16.2 [8.3, 23.3]	17.6 [10.1, 25.3]	17.7 [10.3, 24.9]	0.02
${\text{Rates}}_1^{-}\times 1\mathrm{E}-3$	10.9 [7.8, 13.5]	9.0[4.2, 12.7]	8.9 [5.1, 12.2]	9.8 [6.1, 13.7]	9.8 [6.0, 13.0]	0.004