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Within group comparison of WKT
| RH | Difference (Δ) | Significance | ||||
| Baseline-3 months | Baseline-6 months | 3 months-6 months | Baseline-3 months | Baseline-6 months | 3 months-6 months | |
| Group I | 0.75 | 0.75 | – | 0.015* | 0.015* | – |
| Group II | 0.85 | 0.85 | – | <0.001** | <0.001** | – |
