Wittes J - Search Results

1

The role of internal pilot studies in increasing the efficiency of clinical trials.

Wittes J, Brittain E. Wittes J, et al. Stat Med. 1990 Jan-Feb;9(1-2):65-71; discussion 71-2. doi: 10.1002/sim.4780090113. Stat Med. 1990. PMID: 2345839

2

Internal pilot studies II: comparison of various procedures.

Zucker DM, Wittes JT, Schabenberger O, Brittain E. Zucker DM, et al. Among authors: wittes jt. Stat Med. 1999 Dec 30;18(24):3493-509. doi: 10.1002/(sici)1097-0258(19991230)18:24<3493::aid-sim302>3.0.co;2-2. Stat Med. 1999. PMID: 10611621

3

Internal pilot studies I: type I error rate of the naive t-test.

Wittes J, Schabenberger O, Zucker D, Brittain E, Proschan M. Wittes J, et al. Stat Med. 1999 Dec 30;18(24):3481-91. doi: 10.1002/(sici)1097-0258(19991230)18:24<3481::aid-sim301>3.0.co;2-c. Stat Med. 1999. PMID: 10611620

4

The run-in period in clinical trials. The effect of misclassification on efficiency.

Brittain E, Wittes J. Brittain E, et al. Among authors: wittes j. Control Clin Trials. 1990 Oct;11(5):327-38. doi: 10.1016/0197-2456(90)90174-z. Control Clin Trials. 1990. PMID: 2289394

5

Factorial designs in clinical trials: the effects of non-compliance and subadditivity.

Brittain E, Wittes J. Brittain E, et al. Among authors: wittes j. Stat Med. 1989 Feb;8(2):161-71. doi: 10.1002/sim.4780080204. Stat Med. 1989. PMID: 2704898

6

Blinded subjective rankings as a method of assessing treatment effect: a large sample example from the Systolic Hypertension in the Elderly Program (SHEP).

Brittain E, Palensky J, Blood J, Wittes J. Brittain E, et al. Among authors: wittes j. Stat Med. 1997 Mar 30;16(6):681-93. doi: 10.1002/(sici)1097-0258(19970330)16:6<681::aid-sim487>3.0.co;2-h. Stat Med. 1997. PMID: 9131756

7

Surrogate endpoints in clinical trials: cardiovascular diseases.

Wittes J, Lakatos E, Probstfield J. Wittes J, et al. Stat Med. 1989 Apr;8(4):415-25. doi: 10.1002/sim.4780080405. Stat Med. 1989. PMID: 2727465

8

The use of subjective rankings in clinical trials with an application to cardiovascular disease.

Follmann D, Wittes J, Cutler JA. Follmann D, et al. Among authors: wittes j. Stat Med. 1992 Feb 28;11(4):427-37; discussion 439-54. doi: 10.1002/sim.4780110402. Stat Med. 1992. PMID: 1609177

9

Analysis and interpretation of treatment effects in subgroups of patients in randomized clinical trials.

Yusuf S, Wittes J, Probstfield J, Tyroler HA. Yusuf S, et al. Among authors: wittes j. JAMA. 1991 Jul 3;266(1):93-8. JAMA. 1991. PMID: 2046134

10

Testing the effect of treatment in experiments with correlated binary outcomes.

Zucker D, Wittes J. Zucker D, et al. Among authors: wittes j. Biometrics. 1992 Sep;48(3):695-709. Biometrics. 1992. PMID: 1420835

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