Crackle Pitch Rises Progressively during Inspiration in Pneumonia, CHF, and IPF Patients

Table 2

Number of patients whose crackle pitch increased, decreased, and did not change during expiration.

	Pneumonia	CHF	Interstitial fibrosis	Total
Increased	0	0	0	0 (0%)
No change	3	0	2	5 (28%)
Decreased	7	0	6	13 (72%)