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

Table 1

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

	Pneumonia	CHF	Interstitial fibrosis	Total
Increased	28	28	23	79 (79%)
No change	2	6	2	10 (10%)
Decreased	4	4	3	11 (11%)