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P values after the application of pooled ‘t’ test comparing KL-score and GAG estimation in studied patients.***
| KL grades | ‘p’ value |
|---|---|
| I and II | 0.0001*** |
| I and III | 0.0001*** |
| I and IV | 0.0001*** |
| II and III | 0.6395 |
| II and IV | 0. 0001*** |
| III and IV | 0.0001*** |
Statistical significance at 1%.
