(0.0089×WBC-1.1219×AG) 两自变量对生存状态均有作用。得到风险量增加倍数为e 其中白 细胞数的变量系数为正值,意味着白细胞数愈高,死亡风险愈大;Ag的变量系数为负,意 味着Ag阳性者,死亡风险小 33 Total cases read 0 Cases with missing values 0 Valid cases with non-positive times 0 Censored cases before the earliest event in a stratum 0 Total cases dropped 33 Cases available for the analysis Dependent Variable: TIME Events Censored 4(12.1%) Beginning Block Number 0. Initial Log Likelihood Functi -2 Log Likelihood 153.394 Beginning Block Number 1. Method: Enter Variable(s) Entered at Step Number 1 WBC -2 Log Likelihood 42.761 11.773 Change(-2LL)from 10633 0049 Previous Step 10633 2 0049 Variables in the Equation Variable B S.E. Wald df Sig R Exp(B) 1.121945056.2025 012816553256 0089 2.9703 07951.0089 接着,系统显示各生存时点(亦即各样本)的本底风险量( Cum hazard)、生存率 ( Survival)、生存率的标准误(SE)和本底风险量的标准误( SE of Cum hazard)。并提示 将在原数据库中产生三个新的变量,即生存率、风险比例和风险量倍数两自变量对生存状态均有作用。得到风险量增加倍数为 e (0.0089×WBC - 1.1219×AG) ，其中白 细胞数的变量系数为正值，意味着白细胞数愈高，死亡风险愈大；Ag 的变量系数为负，意 味着 Ag 阳性者，死亡风险小。 33 Total cases read 0 Cases with missing values 0 Valid cases with non-positive times 0 Censored cases before the earliest event in a stratum 0 Total cases dropped 33 Cases available for the analysis Dependent Variable: TIME Events Censored 29 4 (12.1%) Beginning Block Number 0. Initial Log Likelihood Function -2 Log Likelihood 153.394 Beginning Block Number 1. Method: Enter Variable(s) Entered at Step Number 1.. AG WBC -2 Log Likelihood 142.761 Chi-Square df Sig Overall (score) 11.773 2 .0028 Change (-2LL) from Previous Block 10.633 2 .0049 Previous Step 10.633 2 .0049 -------------------- Variables in the Equation --------------------- Variable B S.E. Wald df Sig R Exp(B) AG -1.1219 .4505 6.2025 1 .0128 -.1655 .3256 WBC .0089 .0052 2.9703 1 .0848 .0795 1.0089 接着，系统显示各生存时点（亦即各样本）的本底风险量（Cum Hazard）、生存率 （Survival）、生存率的标准误（SE）和本底风险量的标准误（SE of Cum hazard）。并提示 将在原数据库中产生三个新的变量，即生存率、风险比例和风险量倍数