Table 2.
Comparison of sputum viscosity between the two groups [n (%)]
| Group | Number of subjects | Time | Grade I | Grade II | Grade III |
|---|---|---|---|---|---|
| Control group | 50 | Before extubation | 0 | 15 (30.00) | 35 (70.00) |
| 48 hours after extubation | 9 (18.00) | 22 (44.00) | 19 (38.00)*** | ||
| Study group | 50 | Before extubation | 0 | 17 (34.00) | 33 (66.00) |
| 48 hours after extubation | 16 (32.00) | 24 (48.00) | 10 (20.00)***,### |
Note: Compared with concurrent control group;
###
P < 0.001.
Compared with that before extubation in this group;
***
P < 0.001.