options linesize=80 pagesize = 60; data drugs; input a c m count @@; cards; 1 1 1 911 1 1 2 538 1 2 1 44 1 2 2 456 2 1 1 3 2 1 2 43 2 2 1 2 2 2 2 279 ; proc genmod; class a c m; model count = a c m a*c a*m c*m / dist=poi link=log obstats; run; The GENMOD Procedure Model Information Data Set WORK.DRUGS Distribution Poisson Link Function Log Dependent Variable count Observations Used 8 Class Level Information Class Levels Values a 2 1 2 c 2 1 2 m 2 1 2 Criteria For Assessing Goodness Of Fit Criterion DF Value Value/DF Deviance 1 0.3740 0.3740 Scaled Deviance 1 0.3740 0.3740 Pearson Chi-Square 1 0.4011 0.4011 Scaled Pearson X2 1 0.4011 0.4011 Log Likelihood 12010.6124 Algorithm converged. Analysis Of Parameter Estimates Standard Wald 95% Chi- Parameter DF Estimate Error Confidence Limits Square Pr > ChiSq Intercept 1 5.6334 0.0597 5.5164 5.7504 8903.96 <.0001 a 1 1 0.4877 0.0758 0.3392 0.6362 41.44 <.0001 a 2 0 0.0000 0.0000 0.0000 0.0000 . . c 1 1 -1.8867 0.1627 -2.2055 -1.5678 134.47 <.0001 c 2 0 0.0000 0.0000 0.0000 0.0000 . . m 1 1 -5.3090 0.4752 -6.2404 -4.3777 124.82 <.0001 m 2 0 0.0000 0.0000 0.0000 0.0000 . . a*c 1 1 1 2.0545 0.1741 1.7134 2.3957 139.32 <.0001 a*c 1 2 0 0.0000 0.0000 0.0000 0.0000 . . a*c 2 1 0 0.0000 0.0000 0.0000 0.0000 . . a*c 2 2 0 0.0000 0.0000 0.0000 0.0000 . . a*m 1 1 1 2.9860 0.4647 2.0753 3.8968 41.29 <.0001 a*m 1 2 0 0.0000 0.0000 0.0000 0.0000 . . a*m 2 1 0 0.0000 0.0000 0.0000 0.0000 . . a*m 2 2 0 0.0000 0.0000 0.0000 0.0000 . . c*m 1 1 1 2.8479 0.1638 2.5268 3.1690 302.14 <.0001 c*m 1 2 0 0.0000 0.0000 0.0000 0.0000 . . c*m 2 1 0 0.0000 0.0000 0.0000 0.0000 . . c*m 2 2 0 0.0000 0.0000 0.0000 0.0000 . . The SAS System 23:24 Sunday, May 6, 2001 16 The GENMOD Procedure Analysis Of Parameter Estimates Standard Wald 95% Chi- Parameter DF Estimate Error Confidence Limits Square Pr > ChiSq Scale 0 1.0000 0.0000 1.0000 1.0000 NOTE: The scale parameter was held fixed. Observation Statistics Observation count a c m Pred Xbeta Std HessWgt Lower Upper Resraw Reschi Resdev StResdev StReschi Reslik 1 911 1 1 1 910.38317 6.8138656 0.0331254 910.38317 853.15473 971.45041 0.6168304 0.0204434 0.0204411 0.6332534 0.6333249 0.6333248 2 538 1 1 2 538.61683 6.2890044 0.0430504 538.61683 495.03436 586.03627 -0.61683 -0.026578 -0.026583 -0.633446 -0.633325 -0.633325 3 44 1 2 1 44.61683 3.7981111 0.1481099 44.61683 33.375465 59.644459 -0.61683 -0.092346 -0.09256 -0.634793 -0.633325 -0.633356 4 456 1 2 2 455.38317 6.1211392 0.0468122 455.38317 415.46112 499.14136 0.6168304 0.0289053 0.0288988 0.633182 0.6333249 0.6333246 5 3 2 1 1 3.616831 1.2855982 0.4516316 3.616831 1.4924462 8.7651178 -0.616831 -0.324341 -0.334285 -0.652742 -0.633326 -0.638475 6 43 2 1 2 42.38317 3.7467513 0.1518756 42.38317 31.471445 57.078189 0.6168304 0.0947478 0.0945193 0.631798 0.6333249 0.6332908 7 2 2 2 1 1.3831699 0.3243779 0.476606 1.3831699 0.5434852 3.5201674 0.6168301 0.5244786 0.491342 0.5933111 0.6333247 0.6061677 8 279 2 2 2 279.61683 5.6334202 0.0597008 279.61683 248.74013 314.32632 -0.61683 -0.036888 -0.036901 -0.633558 -0.633325 -0.633326