Skip to main content

Table 1 Subject Characteristics.

From: Cough reflex sensitivity improves with speech language pathology management of refractory chronic cough

Subject Characteristics   Normal
Range
Number, (M/F) 17 (8/9)  
Age, years 61 (20)  
Age Range, years 34-83  
Cough Duration, months 60 (147)  
FEV1, %predicted 88.2 (16.7)  
FVC, %predicted 88.5 (20.3)  
Auditory perceptual voice analysis, % abnormal 63  
Maximum phonation time, seconds 12.8 (8.9) >15
Range, seconds 1 - 26  
Jitter, percent 1.7 (1.6) < 1
Range, percent 0.4 - 6.5  
Harmonic to noise ratio, dB SPL 15.9 (3.8) > 20
Range, dB SPL 10 - 24.7  
Speaking fundamental frequency, Hertz Female: 178 (20) 180 - 200 (female)
Range, Hertz 154 - 198 90-130 (male)
Range, Hertz Male: 110 (14)97 - 133  
Closed phase, percent 43.5 (6.4) 44.5
Range, percent 32 - 53  
  1. Median (IQR) unless otherwise stated.