Table 4 Comparison of Severity of Hyponatremia Between Groups
From: A retrospective study: exploring preoperative hyponatremia in elderly patients with hip fractures
| Â | Non-hyponatremia | Mild hyponatremia | Moderate hyponatremia | Severe hyponatremia |
|---|---|---|---|---|
Fracture group | 326 | 75 | 13 | 5 |
Control group | 163 | 3 | 0 | 0 |
Z value | -6.005 | Â | Â | Â |
P value | 0.000 | Â | Â | Â |