Short and long-term outcome post acute PE.

CI indicates confidence interval.
Group 1: Normonatremia (initial serum sodium ≥135 mmol/L and stayed normal during admission); Group 2: Corrected hyponatremia (initial serum sodium <135 mmol/L with subsequent normalization during admission, i.e. ≥135 mmol/L); Group 3: Acquired hyponatremia (initial serum sodium ≥135 mmol/L, with subsequent fall during admission to <135 mmol/L); Group 4: Persistent hyponatremia (initial serum sodium <135 mmol/L and stayed <135 mmol/L during admission).
*Comparison between groups only performed for in-hospital death using binary logistic regression. For post-discharge comparison, see Kaplan-Meier analyses.
†p<0.01 compared to Group 1.

CI指置信区间（confidence interval）。
第1组：正常钠血症（Normonatremia），初始血清钠≥135 mmol/L且住院期间维持正常水平；第2组：纠正性低钠血症（Corrected hyponatremia），初始血清钠<135 mmol/L且住院期间后续恢复至正常水平（即≥135 mmol/L）；第3组：获得性低钠血症（Acquired hyponatremia），初始血清钠≥135 mmol/L，住院期间后续降至<135 mmol/L；第4组：持续性低钠血症（Persistent hyponatremia），初始血清钠<135 mmol/L且住院期间持续<135 mmol/L。
*仅针对院内死亡采用二元logistic回归（binary logistic regression）进行组间比较；出院后组间比较详见Kaplan-Meier分析（Kaplan-Meier analyses）。
†与第1组相比，p<0.01。