Loglinear (Poisson) regression model for CHD as a function of Smoking |
Study of Risk Factors for Coronary Heart Disease (CHD) |
The GENMOD Procedure |
Model Information |
|
Data Set |
WORK.CHD |
Distribution |
Poisson |
Link Function |
Log |
Dependent Variable |
chd |
Offset Variable |
logpyrs |
Observations Used |
16 |
Criteria For Assessing Goodness Of Fit |
|||
Criterion |
DF |
Value |
Value/DF |
Deviance |
14 |
89.3820 |
6.3844 |
Scaled Deviance |
14 |
89.3820 |
6.3844 |
Pearson Chi-Square |
14 |
104.2445 |
7.4460 |
Scaled Pearson X2 |
14 |
104.2445 |
7.4460 |
Log Likelihood |
|
463.2618 |
|
Algorithm converged. |
Analysis Of Parameter Estimates |
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Parameter |
DF |
Estimate |
Standard Error |
Wald 95% Confidence Limits |
Chi-Square |
Pr > ChiSq |
|
Intercept |
1 |
-4.7993 |
0.0885 |
-4.9728 |
-4.6258 |
2939.54 |
<.0001 |
smoke |
1 |
0.0318 |
0.0056 |
0.0207 |
0.0428 |
31.88 |
<.0001 |
Scale |
0 |
1.0000 |
0.0000 |
1.0000 |
1.0000 |
|
|
|