Univariate logistic regression analysis for factors associated with survival of 7 days or less.

OR: odds ratio, 95% CI: 95% confidence interval, ECOG PS: Eastern Cooperative Oncology Group performance status, lnTP: natural logarithm-transformed total power, lnHFP: natural logarithm-transformed high-frequency power, ln(LFP/HFP): natural logarithm-transformed (lower-frequency power/high frequency power).

OR：比值比（odds ratio），95% CI：95%置信区间（95% confidence interval），ECOG PS：东部肿瘤协作组体能状态评分（Eastern Cooperative Oncology Group performance status），lnTP：自然对数转换总功率（natural logarithm-transformed total power），lnHFP：自然对数转换高频功率（natural logarithm-transformed high-frequency power），ln(LFP/HFP)：自然对数转换（低频功率/高频功率）（natural logarithm-transformed (lower-frequency power/high frequency power)）