SAS システム

The QUANTLIFE Procedure

Model Information
Data Set WORK.PBC
Dependent Variable Log(Time)
Censoring Variable Status
Censoring Value(s) 0
Number of Observations 418
Method Nelson-Aalen
Replications 200
Seed for Random Number Generator 1268

Number of Observations Read 418
Number of Observations Used 418

Summary of the Number of Event and Censored
Values
Total Event Censored Percent
Censored
418 161 257 61.48

Parameter Estimates
Quantile Parameter DF Estimate Standard
Error
95% Confidence Limits t Value Pr > |t|
0.1000 Intercept 1 14.8030 4.0967 6.7736 22.8325 3.61 0.0003
  logBilirubin 1 -0.4488 0.1485 -0.7398 -0.1578 -3.02 0.0027
  logProtime 1 -3.6378 1.4560 -6.4915 -0.7841 -2.50 0.0129
  logAlbumin 1 1.9286 0.9756 0.0165 3.8408 1.98 0.0487
  Age 1 -0.0244 0.0107 -0.0455 -0.00334 -2.27 0.0237
  Edema 1 -1.0712 0.6688 -2.3820 0.2396 -1.60 0.1100
0.2000 Intercept 1 15.1800 2.6664 9.9540 20.4060 5.69 <.0001
  logBilirubin 1 -0.6532 0.0886 -0.8268 -0.4796 -7.37 <.0001
  logProtime 1 -3.3273 0.9401 -5.1699 -1.4847 -3.54 0.0004
  logAlbumin 1 1.6842 0.6888 0.3343 3.0342 2.45 0.0149
  Age 1 -0.0291 0.00687 -0.0425 -0.0156 -4.23 <.0001
  Edema 1 -0.7265 0.3179 -1.3497 -0.1034 -2.29 0.0228
0.3000 Intercept 1 13.2382 2.5296 8.2804 18.1961 5.23 <.0001
  logBilirubin 1 -0.6013 0.0762 -0.7506 -0.4521 -7.90 <.0001
  logProtime 1 -2.5816 0.8907 -4.3273 -0.8359 -2.90 0.0039
  logAlbumin 1 1.7246 0.7142 0.3248 3.1245 2.41 0.0162
  Age 1 -0.0244 0.00716 -0.0385 -0.0104 -3.41 0.0007
  Edema 1 -0.8577 0.2763 -1.3992 -0.3163 -3.10 0.0020
0.4000 Intercept 1 13.4716 3.0874 7.4204 19.5228 4.36 <.0001
  logBilirubin 1 -0.6047 0.0846 -0.7705 -0.4389 -7.15 <.0001
  logProtime 1 -2.1632 1.1726 -4.4615 0.1351 -1.84 0.0658
  logAlbumin 1 0.9819 0.7191 -0.4274 2.3912 1.37 0.1728
  Age 1 -0.0255 0.00681 -0.0389 -0.0122 -3.74 0.0002
  Edema 1 -1.0589 0.3104 -1.6672 -0.4506 -3.41 0.0007
0.5000 Intercept 1 10.9205 2.8047 5.4235 16.4175 3.89 0.0001
  logBilirubin 1 -0.5315 0.0904 -0.7087 -0.3543 -5.88 <.0001
  logProtime 1 -1.2222 1.2142 -3.6020 1.1577 -1.01 0.3148
  logAlbumin 1 1.5700 0.6284 0.3383 2.8016 2.50 0.0129
  Age 1 -0.0318 0.00883 -0.0491 -0.0145 -3.60 0.0004
  Edema 1 -0.7316 0.3743 -1.4653 0.00202 -1.95 0.0513
0.6000 Intercept 1 11.2381 2.6294 6.0846 16.3917 4.27 <.0001
  logBilirubin 1 -0.5701 0.0852 -0.7370 -0.4031 -6.69 <.0001
  logProtime 1 -1.3508 1.1402 -3.5856 0.8840 -1.18 0.2368
  logAlbumin 1 1.3704 0.5091 0.3726 2.3682 2.69 0.0074
  Age 1 -0.0226 0.0109 -0.0440 -0.00111 -2.06 0.0399
  Edema 1 -0.5141 0.3088 -1.1193 0.0912 -1.66 0.0968
0.7500 Intercept 1 10.0954 3.1893 3.8445 16.3463 3.17 0.0017
  logBilirubin 1 -0.6366 0.1071 -0.8466 -0.4267 -5.94 <.0001
  logProtime 1 -0.9670 1.2343 -3.3862 1.4521 -0.78 0.4338
  logAlbumin 1 1.8148 0.5883 0.6618 2.9678 3.08 0.0022
  Age 1 -0.0203 0.0156 -0.0509 0.0102 -1.30 0.1931
  Edema 1 -0.3529 0.3120 -0.9644 0.2586 -1.13 0.2587

Panel 1 of Parameter by Quantile Plots.

Panel 2 of Parameter by Quantile Plots.

Predicted Survival Function

Predicted Quantile Function



SAS システム

The LIFEREG Procedure

Model Information
Data Set WORK.PBC  
Dependent Variable Log(Time) Follow-up Time in Days
Censoring Variable Status  
Censoring Value(s) 0  
Number of Observations 418  
Noncensored Values 161  
Right Censored Values 257  
Left Censored Values 0  
Interval Censored Values 0  
Number of Parameters 7  
Name of Distribution Weibull  
Log Likelihood -314.3842245  

Number of Observations Read 418
Number of Observations Used 418

Fit Statistics
-2 Log Likelihood 628.768
AIC (smaller is better) 642.768
AICC (smaller is better) 643.042
BIC (smaller is better) 671.017

Fit Statistics (Unlogged Response)
-2 Log Likelihood 2827.253
Weibull AIC (smaller is better) 2841.253
Weibull AICC (smaller is better) 2841.526
Weibull BIC (smaller is better) 2869.501

Algorithm converged.

Type III Analysis of Effects
Effect DF Wald
Chi-Square
Pr > ChiSq
logBilirubin 1 107.5488 <.0001
logProtime 1 11.2048 0.0008
logAlbumin 1 15.2423 <.0001
Age 1 25.3453 <.0001
Edema 1 12.1880 0.0005

Analysis of Maximum Likelihood Parameter Estimates
Parameter DF Estimate Standard Error 95% Confidence Limits Chi-Square Pr > ChiSq
Intercept 1 12.2155 1.4539 9.3658 15.0651 70.59 <.0001
logBilirubin 1 -0.5770 0.0556 -0.6861 -0.4680 107.55 <.0001
logProtime 1 -1.7565 0.5248 -2.7850 -0.7280 11.20 0.0008
logAlbumin 1 1.6694 0.4276 0.8313 2.5074 15.24 <.0001
Age 1 -0.0265 0.0053 -0.0368 -0.0162 25.35 <.0001
Edema 1 -0.6303 0.1805 -0.9842 -0.2764 12.19 0.0005
Scale 1 0.6807 0.0430 0.6014 0.7704    
Weibull Shape 1 1.4691 0.0928 1.2980 1.6628