Group

Number of cases

Effective coughing and expectoration

Pursed lip breathing

Abdominal respiration

Compliance

Relative compliance

Non- compliance

Compliance

Relative compliance

Non- compliance

Compliance

Relative compliance

Non- compliance

Control Group

40

12

22

6

15

18

7

13

21

6

Observation Group

40

29

10

1

22

15

3

21

16

3

Z

−4.214

−4.332

−4.311

P

<0.001

<0.003

<0.002