Stat Computing > SAS > Output

Annotated Output for Proc Logistic

LOGISTIC Procedure

              Model Information

Data Set                      WORK.HS1
Response Variable             honcomp
Number of Response Levels     2
Number of Observations        195
Link Function                 Logit
Optimization Technique        Fisher's scoring


          Response Profile

 Ordered                      Total
   Value      honcomp     Frequency

       1            1            52
       2            0           143

NOTE: 5 observations were deleted due to missing values for the response or explanatory variables.


                    Model Convergence Status

         Convergence criterion (GCONV=1E-8) satisfied.


         Model Fit Statistics

                              Intercept
               Intercept         and
Criterion        Only        Covariates

AIC              228.167        153.474
SC               231.440        173.112
-2 Log L         226.167        141.474


        Testing Global Null Hypothesis: BETA=0

Test                 Chi-Square       DF     Pr > ChiSq

Likelihood Ratio        84.6929        5         <.0001
Score                   71.3608        5         <.0001
Wald                    44.0329        5         <.0001



             Analysis of Maximum Likelihood Estimates

                               Standard
Parameter    DF    Estimate       Error    Chi-Square     Pr > ChiSq

Intercept     1    -15.2411      2.3040       43.7593        <.0001
female        1      1.2467      0.4660        7.1562        0.0075
schtyp        1      0.2431      0.5684        0.1829        0.6689
read          1      0.0643      0.0284        5.1485        0.0233
math          1      0.1221      0.0350       12.1307        0.0005
science       1      0.0553      0.0328        2.8489        0.0914


           Odds Ratio Estimates

              Point      95% Wald
Effect     Estimate      Confidence Limits

female        3.479       1.396       8.672
public        1.275       0.419       3.885
read          1.066       1.009       1.127
math          1.130       1.055       1.210
science       1.057       0.991       1.127


Association of Predicted Probabilities and Observed Responses

Percent Concordant     88.7    Somers' D    0.775
Percent Discordant     11.2    Gamma        0.776
Percent Tied            0.1    Tau-a        0.305
Pairs                  7436    c            0.888

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