Exacerbations severity | Group A | Group B | Test value* | P-value | |||
No. | % | No. | % | ||||
Before vitamin D supplementation | Absent | 0 | 0.0% | 0 | 0.0% | 2.613 | 0.271 |
Mild | 3 | 15.0% | 4 | 20.0% | |||
Moderate | 11 | 55.0% | 6 | 30.0% | |||
Severe | 6 | 30.0% | 10 | 50.0% | |||
After vitamin D supplementation | Absent | 2 | 10.0% | 3 | 15.0% | 1.682 | 0.641 |
Mild | 13 | 65.0% | 10 | 50.0% | |||
Moderate | 5 | 25.0% | 6 | 30.0% | |||
Severe | 0 | 0.0% | 1 | 5.0% | |||
Test value | 16.500 | 12.935 |
|
| |||
P-value | 0.001 | 0.005 |