Abstract: Objective  To analyze the influencing factors of hyponatremia in patients with non-severe traumatic brain injury (sTBI).Methods  A prospective study was conducted to select 82 non-STBI patients who were admitted to our hospital from January 2017 to December 2022,and divided them into a group with hyponatremia (30 cases) and a group without hyponatremia (52 cases) according to whether they developed hyponatremia within 7 days of admission.The influencing factors of hyponatremia in patients with non-sTBI were analyzed by multivariate stepwise logistic regression.Results Multivariate stepwise logistic regression analysis showed that GCS ≤12 points,skull base fracture,subarachnoid hemorrhage,fever,vomiting,and use of diuretics were all risk factors for hyponatremia in patients with non-sTBI (P<0.05).Conclusion GCS ≤12 points,skull base fracture,subarachnoid hemorrhage,fever,vomiting and use of diuretics are all risk factors for hyponatremia in patients with non-sTBI.

Key words: non-severe traumatic brain injury, hyponatremia, skull base fracture, subarachnoid hemorrhage