The SAS System 1 11:01 Tuesday, April 8, 2008 The GENMOD Procedure Model Information Data Set WORK.ONE Distribution Binomial Link Function Logit Dependent Variable illness Frequency Weight Variable amscount Number of Observations Read 8 Number of Observations Used 8 Sum of Frequencies Read 487 Sum of Frequencies Used 487 Number of Events 4 Number of Trials 8 Response Profile Ordered Total Value illness Frequency 1 1 115 2 0 372 PROC GENMOD is modeling the probability that illness='1'. Criteria For Assessing Goodness Of Fit Criterion DF Value Value/DF Deviance 483 501.3181 1.0379 Scaled Deviance 483 501.3181 1.0379 Pearson Chi-Square 483 487.0000 1.0083 Scaled Pearson X2 483 487.0000 1.0083 Log Likelihood -250.6591 Algorithm converged. Analysis Of Parameter Estimates Standard Wald 95% Chi- Parameter DF Estimate Error Confidence Limits Square Pr > ChiSq Intercept 1 -0.6806 0.1941 -1.0609 -0.3002 12.30 0.0005 acet 1 -1.3248 0.3445 -2.0000 -0.6495 14.78 0.0001 The SAS System 2 11:01 Tuesday, April 8, 2008 The GENMOD Procedure Analysis Of Parameter Estimates Standard Wald 95% Chi- Parameter DF Estimate Error Confidence Limits Square Pr > ChiSq gb 1 0.0473 0.2707 -0.4832 0.5778 0.03 0.8612 acet*gb 1 0.1663 0.4681 -0.7512 1.0837 0.13 0.7225 Scale 0 1.0000 0.0000 1.0000 1.0000 NOTE: The scale parameter was held fixed.