Table 2 Distribution of typical shapes of the expiratory limb of the tidal breathing flow-volume loop after the peak tidal expiratory flow (PTEF) (absolute number and percentages in brackets)
From: Differences in tidal breathing between infants with chronic lung diseases and healthy controls
Shape | Healthy neonates (n = 48) | CLD infants (n = 48) |
|---|---|---|
Convex | 10 (21%) | 9 (25%) |
Linear | 31 (65%) | 13 (27%) |
Concave | 1 (2%) | 15 (31%) |
Flow limitation | 5 (10%) | 5(11%) |
Other shapes | 1 (2%) | 3 (6%) |