Regional MCC (Ave60Clr)
| Central (%) | Peripheral (%) | |
| Healthy adult baseline n=33 | 15.9 (10.5) | 12.6 (7.2) |
| CB period 1 baseline n=22 | 4.7 (11.6)# | 11.2 (9.3) |
| CB HS (7% saline) | ||
| Baseline | 5.7 (10.4) | 12.3 (7.0) |
| 2 weeks | 1.5 (10.0) | 8.4 (9.0) |
| CB control (0.12% saline) | ||
| Baseline | 4.1 (15.7) | 12.6 (11.3) |
| 2 weeks | 2.7 (9.6) | 9.3 (7.2) |
Data are presented as mean±sd. MCC: mucociliary clearance; Ave60Clr: average rate of clearance through 60 min; CB: chronic bronchitis; HS: hypertonic saline. #: p<0.001 compared to healthy adults by t-test.