Association between serum magnesium level and long-term prognosis of traumatic brain injury

Low serum magnesium levels are associated with poorer long-term outcomes in patients with TBI, and this effect is especially pronounced in younger adults (18-64 years). Specifically, younger patients exhibiting hypomagnesemia demonstrated a higher incidence of 6-month disability and mortality. These findings suggest a need to identify the causative links and explore whether correcting serum magnesium levels will improve TBI prognosis across different age groups.