Effect of imbalance and intracluster correlation coefficient in cluster randomized trials with binary outcomes

Computational Statistics and Data Analysis

Volumn 53, Issue 3, 2009, Pages 596-602

  Ahn, Chul ^a   Hu, Fan ^b   Skinner, Celette Sugg ^a  

^a UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER   (United States)

^b SOUTHERN METHODIST UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CORRELATION METHODS; LEARNING SYSTEMS;

CLUSTER RANDOMIZED TRIALS; CLUSTER SIZES; INTRACLUSTER CORRELATIONS; LARGE SAMPLES; MEDICAL RESEARCHES; PRACTICAL ISSUES; SAMPLE SIZES; SIMULATION STUDIES; SMALL SAMPLE SIZES; UNIT OF ANALYSIS;

CLUSTER ANALYSIS;

EID: 56349085893     PISSN: 01679473     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.csda.2008.09.007     Document Type: Article

References (22)

1. Ahn C. An evaluation of simple methods for the estimation of a common odds ratio in clusters with variable size. Computational Statistics and Data Analysis 24 (1997) 47-61
2. Ahn C., Jung S.H., and Kang S.H. An evaluation of weighted chi-square statistics for clustered binary data. Drug Information Journal 37 (2003) 91-99
3. Ahrens H., and Pincus R. On two measures of unbalancedness in a one-way model and their relation to efficiency. Biometrical Journal 23 (1981) 227-235
4. Banting D.W., Ellen R.P., and Fillery E.D. A longitudinal study of root caries: Baseline and incidence data. Journal of Dental Research 64 (1985) 1141-1144
5. Bruce M.L., Ten Have T.R., Reynolds III C.F., Katz II, Schulberg H.C., Mulsant B.H., Brown G.K., McAvay G.J., Pearson J.L., and Alexopoulos G.S. Reducing suicidal ideation and depressive symptoms in depressed older primary care patients: A randomized controlled trial. JAMA 291 (2004) 1081-1091
6. Donner A., and Banting D. Analysis of site-specific data in dental studies. Journal of Dental Research 67 (1987) 1392-1395
7. Donner A., and Banting D. Adjustment of frequently used chi-square procedures for the effects of site-to-site dependence in the analysis of dental data. Journal of Dental Research 68 (1988) 1350-1354
8. Donner A., and Hauck W. The large-sample relative efficiency of the Mantel-Haenszel estimator in the fixed-strata case. Biometrics 42 (1986) 537-545
9. Donner A., and Klar N. Design and Analysis of Cluster Randomization Trials in Health Research (2000), Arnold, London
10. Donner A., and Koval J. A procedure for generating group sizes from a one-way classification with a specified degree of imbalance. Biometrical Journal 29 (1987) 181-187
11. Donner A., Wells G., and Eliasziw M. On two approximations to the F-Distribution: Application to testing for intraclass correlation in family studies. The Canadian Journal of Statistics 17 (1989) 209-215
12. Guittet L., Ravaud P., and Giraudeau B. Planning a cluster randomized trial with unequal cluster sizes: Practical issues involving continuous outcomes. BMC Medical Research Methodology 6 17 (2006) 1-15
13. Johnson N.L., and Kotz S. Distributions in Statistics. Discrete Distributions (1969), Wiley, New York
14. Jung S.H., Kang S.H., and Ahn C. Sample size calculations for clustered binary data. Statistics in Medicine 20 (2001) 1971-1982
15. Kang S.H., Ahn C., and Jung S.H. Sample size calculations for dichotomous outcomes in cluster randomization trials with varying cluster size. Drug Information Journal 37 (2003) 109-114
16. Lunn A.D., and Davies S.J. A Note on generating correlated binary variables. Biometrika 85 (1998) 487-490
17. Manatunga A.K., Hudgens M.G., and Chen S. Sample size estimation in cluster randomized studies with varying cluster size. Biometrical Journal 1 (2001) 75-86
18. Murray D.M., Perry C.L., Griffin G., Harty K.C., Jacobs D.R., Schmid L., Daly K., and Pallonen U. Results from a statewide approach to adolescent tobacco use prevention. Preventive Medicine 21 (1992) 449-472
19. Simpson J.M., Klar N., and Donner A. Accounting for cluster randomization: A review of Primary prevention trials, 1990 through 1993. American Journal of Public Health 85 (1995) 1378-1382
20. Skinner C.S., Rawl S.M., Moser B.K., Buchanan A.H., Scott L.L., Champion V.L., Schildkraut J.M., Parmigiani G., Clark S., Lobach D.F., and Bastian L.A. Impact of the Cancer Risk Intake System on patient-clinician discussions of tamoxifen, genetic counseling, and colonoscopy. Journal of General Internal Medicine 20 4 (2005) 360-365
21. Taljaard M., Donner A., and Klar N. Accounting for expected attrition in the planning of community intervention trials. Statistics in Medicine 26 (2007) 2615-2628
22. Zhou G., and Donner A. Confidence interval estimation of the intraclass correlation coefficient for binary outcome data. Biometrics 60 (2004) 807-811