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