ROC plot The LOGISTIC Procedure Model Information Data Set WORK.ABORTION Response Variable att Number of Response Levels 3 Frequency Variable count Model cumulative logit Optimization Technique Fisher's scoring Number of Observations Read 81 Number of Observations Used 81 Sum of Frequencies Read 3237 Sum of Frequencies Used 3237 Response Profile Ordered Total Value att Frequency 1 Neg 190 2 Mix 513 3 Pos 2534 Probabilities modeled are cumulated over the lower Ordered Values. Class Level Information Design Class Value Variables year 1972 0 0 1973 1 0 1974 0 1 rel Prot 0 0 SProt 1 0 Cath 0 1 edu Low 0 0 Med 1 0 High 0 1 Model Convergence Status Convergence criterion (GCONV=1E-8) satisfied. ROC plot The LOGISTIC Procedure Score Test for the Proportional Odds Assumption Chi-Square DF Pr > ChiSq 9.9113 6 0.1284 Deviance and Pearson Goodness-of-Fit Statistics Criterion Value DF Value/DF Pr > ChiSq Deviance 70.2827 46 1.5279 0.0121 Pearson 67.8791 46 1.4756 0.0196 Number of unique profiles: 27 Model Fit Statistics Intercept Intercept and Criterion Only Covariates AIC 4212.355 4075.316 SC 4224.519 4123.975 -2 Log L 4208.355 4059.316 Testing Global Null Hypothesis: BETA=0 Test Chi-Square DF Pr > ChiSq Likelihood Ratio 149.0384 6 <.0001 Score 151.7564 6 <.0001 Wald 146.2814 6 <.0001 Type 3 Analysis of Effects Wald Effect DF Chi-Square Pr > ChiSq year 2 6.3388 0.0420 rel 2 66.1907 <.0001 edu 2 80.2480 <.0001 ROC plot The LOGISTIC Procedure Analysis of Maximum Likelihood Estimates Standard Wald Parameter DF Estimate Error Chi-Square Pr > ChiSq Intercept Neg 1 -2.3310 0.1341 302.1387 <.0001 Intercept Mix 1 -0.7918 0.1211 42.7694 <.0001 year 1973 1 -0.2211 0.1048 4.4505 0.0349 year 1974 1 -0.2332 0.1055 4.8825 0.0271 rel SProt 1 0.2489 0.1139 4.7787 0.0288 rel Cath 1 0.7960 0.1001 63.2921 <.0001 edu Med 1 -0.7166 0.1087 43.4777 <.0001 edu High 1 -1.1267 0.1280 77.5001 <.0001 Odds Ratio Estimates Point 95% Wald Effect Estimate Confidence Limits year 1973 vs 1972 0.802 0.653 0.984 year 1974 vs 1972 0.792 0.644 0.974 rel SProt vs Prot 1.283 1.026 1.603 rel Cath vs Prot 2.217 1.822 2.697 edu Med vs Low 0.488 0.395 0.604 edu High vs Low 0.324 0.252 0.416 Association of Predicted Probabilities and Observed Responses Percent Concordant 61.5 Somers' D 0.290 Percent Discordant 32.5 Gamma 0.309 Percent Tied 6.0 Tau-a 0.104 Pairs 1878872 c 0.645