| GEE Estimation of Marginal Log-linear Regression Model (Random Intercept and Slope) |
| Analysis Excluding Patient 49 (Potential Outlier) |
| Clinical Trial of Epileptic Patients |
| Model Information | |
|---|---|
| Data Set | WORK.SEIZURE |
| Distribution | Poisson |
| Link Function | Log |
| Dependent Variable | y |
| Offset Variable | ltime |
| Number of Observations Read | 290 |
|---|---|
| Number of Observations Used | 290 |
| Class Level Information | ||
|---|---|---|
| Class | Levels | Values |
| id | 58 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 50 51 52 53 54 55 56 57 58 59 |
| visit | 5 | 0 1 2 3 4 |
| Parameter Information | |
|---|---|
| Parameter | Effect |
| Prm1 | Intercept |
| Prm2 | time |
| Prm3 | trt |
| Prm4 | time*trt |
| Algorithm converged. |
| GEE Model Information | |
|---|---|
| Correlation Structure | Unstructured |
| Within-Subject Effect | visit (5 levels) |
| Subject Effect | id (58 levels) |
| Number of Clusters | 58 |
| Correlation Matrix Dimension | 5 |
| Maximum Cluster Size | 5 |
| Minimum Cluster Size | 5 |
| Algorithm converged. |
| GEE Fit Criteria | |
|---|---|
| QIC | -1039.4724 |
| QICu | -1044.9820 |
| Analysis Of GEE Parameter Estimates | ||||||
|---|---|---|---|---|---|---|
| Empirical Standard Error Estimates | ||||||
| Parameter | Estimate | Standard Error | 95% Confidence Limits | Z | Pr > |Z| | |
| Intercept | 1.3312 | 0.1611 | 1.0154 | 1.6470 | 8.26 | <.0001 |
| time | 0.1141 | 0.0926 | -0.0675 | 0.2956 | 1.23 | 0.2181 |
| trt | -0.1021 | 0.1959 | -0.4860 | 0.2819 | -0.52 | 0.6023 |
| time*trt | -0.3167 | 0.1494 | -0.6096 | -0.0239 | -2.12 | 0.0340 |