Comparison of <65 and ≥65 years patients.

P-values are obtained by performing χ2 tests for the categorical variables (triage, type of referral and destination) and independent t-tests for the other variables.

针对分类变量（分诊(triage)、转诊类型及就诊去向），通过χ²检验(Chi-squared test)计算P值；针对其余变量，则通过独立样本t检验(independent samples t-test)计算P值。