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. 2020 Jul 3;158(4):1376–1384. doi: 10.1016/j.chest.2020.06.050

Table 2.

Airway Clearance Technique Modalities at Baseline and Follow up Among Those Who Used Them

Variable Baseline (n = 535), No. (%) Follow Up (n = 247), No. (%)
Positive expiratory pressure device (only) 233 (44) 113 (46)
High-frequency chest wall oscillation (only) 51 (10) 34 (14)
Chest percussion/postural drainage (only) 16 (3) 9 (4)
Directed cough/active cycle of breathing (only) 3 (1) 1 (0.4)
Multiple modalities 232 (43) 90 (36)