Coefficients Standardi ze Unstan dardized Coefficie Coefficients nts Model Std. error Be ta (Constant) 848.944 3128.707 1.550 诊人数 55.886 18.001 478 3.105 病床利用率 21.930 39.813 病床周转次数 19.047 3.303 004 a. De pendent variable:住院人数 y=-4848.994+55886x1+21930x2 +319.047x3Co effi cie ntsa -4848.944 3128.707 -1.550 .141 55.886 18.001 .478 3.105 .007 21.930 39.813 .087 .551 .589 319.047 96.593 .484 3.303 .004 (Constant) 门诊人数 病床利用率 病床周转次数 Model 1 B Std. Error Unstandardized Coefficients Beta Standardi zed Coefficie nts t Sig. a. Dependent Variable: 住院人数3 1 2 319.047 4848.994 55.886 21.930 x y x x + = − + + 