Wanzhu Tu

  • 6728 Citations
  • 42 h-Index
1995 …2021
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Publications 1995 2019

2000
12 Citations (Scopus)

Interval estimation for the ratio in means of log-normally distributed medical costs with zero values

Zhou, X. H. & Tu, W., Dec 28 2000, In : Computational Statistics and Data Analysis. 35, 2, p. 201-210 10 p.

Research output: Contribution to journalArticle

Interval Estimation
Maximum likelihood
Interval
Bootstrap
Costs
10 Citations (Scopus)

Pairwise comparisons of the means of skewed data

Tu, W. & Zhou, X. H., Jul 1 2000, In : Journal of Statistical Planning and Inference. 88, 1, p. 59-74 16 p.

Research output: Contribution to journalArticle

Pairwise Comparisons
Normal distribution
Statistics
Sampling
Pairwise

Parametric empirical Bayes estimation for a class of extended log-linear regression models

Tu, W. & Piegorsch, W. W., May 2000, In : Environmetrics. 11, 3, p. 271-285 15 p.

Research output: Contribution to journalArticle

Empirical Bayes Estimation
Log-linear Models
Linear Regression Model
Linear regression
Count Data
92 Citations (Scopus)

The use of propensity scores in pharmacoepidemiologic research

Perkins, S., Tu, W., Underhill, M. G., Zhou, X. H. & Murray, M., Mar 2000, In : Pharmacoepidemiology and Drug Safety. 9, 2, p. 93-101 9 p.

Research output: Contribution to journalArticle

Propensity Score
Research
Sulindac
Anti-Inflammatory Agents
Kidney
1999
44 Citations (Scopus)

A Wald test comparing medical costs based on log-normal distributions with zero valued costs

Tu, W. & Zhou, X. H., Oct 30 1999, In : Statistics in Medicine. 18, 20, p. 2749-2761 13 p.

Research output: Contribution to journalArticle

Drug Utilization
Wald Test
Log Normal Distribution
Normal Distribution
Sample Size
56 Citations (Scopus)

Comparison of several independent population means when their samples contain log-normal and possibly zero observations

Zhou, X. H. & Tu, W., Jun 1999, In : Biometrics. 55, 2, p. 645-651 7 p.

Research output: Contribution to journalArticle

Type I error
Error Control
Zero
Analysis of variance (ANOVA)
Population
24 Citations (Scopus)

Work patterns of ambulatory care pharmacists with access to electronic guideline-based treatment suggestions

Murray, M., Loos, B., Tu, W., Eckert, G. J., Zhou, X. H. & Tierney, W. M., Feb 1 1999, In : American Journal of Health-System Pharmacy. 56, 3, p. 225-232 8 p.

Research output: Contribution to journalArticle

Ambulatory Care
Pharmacists
Guidelines
Therapeutics
Control Groups
1998
50 Citations (Scopus)

Effects of computer-based prescribing on pharmacist work patterns

Murray, M., Loos, B., Tu, W., Eckert, G. J., Zhou, X. H. & Tierney, W. M., Nov 1998, In : Journal of the American Medical Informatics Association. 5, 6, p. 546-553 8 p.

Research output: Contribution to journalArticle

Pharmacists
Prescriptions
Outpatients
Internal Medicine
Physicians
1995
283 Citations (Scopus)

Dual response surface optimization

Lin, D. K. J. & Tu, W., Jan 1995, In : Journal of Quality Technology. 27, 1, p. 34-39 6 p.

Research output: Contribution to journalArticle

Response Surface
Mean square error
Optimization
Response surface
Model