1. Clinical Trials Versus Health Outcomes Research: SAS/STAT Versus SAS Enterprise Miner Patricia B. Cerrito [email_address] University of Louisville

19. Distribution of Patient Stays

20. Normal Estimate

22. Kernel Density Estimation

24. Kernel Estimate of Length of Stay

27. Sample Size=5

28. Sample Size=30

29. Sample Size=100

30. Sample Size=1000

31. Confidence Limit The confidence limit excludes much of the actual population distribution

32. Confidence Limit With Larger n

36. Regression Equation

38. Simple Regression

39. Classification Table

40. Classification With 3 Variables continued...

41. Classification With 3 Variables

46. 50/50 Split in the Data Filter data to mortality outcome Filter data to non-mortality outcome Use PROC SURVEYSELECT to extract a subsample of non-mortality outcome Append the mortality outcome data to subsample

47. 75/25 Split in the Data

48. 90/10 Split in the Data

51. Sampling Node

52. Misclassification in Regression

53. ROC Curves

55. Rule Induction Results

56. Variable Selection

58. ROC Curves