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Serum LDH Tertiles of Patients
| Variable | PSD Patients (n=249) | Non-PSD Patients (n=269) | χ2 | P-Value |
|---|---|---|---|---|
| Serum LDH level (U/L) | 11.595 | 0.003 | ||
| Tertile 1, n=171 (102–159 U/L) | 66 | 105 | 9.177 | 0.002 |
| Tertile 2, n=173 (160–189 U/L) | 84 | 89 | 0.025 | 0.876 |
| Tertile 3, n=174 (190–520 U/L) | 99 | 75 | 8.178 | 0.004 |
