Sample-size calculation for a log-transformed outcome measure

Controlled Clinical Trials

Volumn 20, Issue 6, 1999, Pages 547-554

  Wolfe, Rory ^a   Carlin, John B ^a  

^a ROYAL CHILDREN'S HOSPITAL   (Australia)

Author keywords

Matched pairs analysis; Normal distribution; Randomized controlled trials; Sample size; Treatment outcome

Indexed keywords

DRUG;

CALCULATION; CLINICAL TRIAL; DATA ANALYSIS; DRUG RESISTANCE; HUMAN; MATHEMATICAL ANALYSIS; OUTCOMES RESEARCH; REVIEW; STATISTICAL ANALYSIS; TREATMENT OUTCOME;

EID: 0033458091     PISSN: 01972456     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0197-2456(99)00032-X     Document Type: Article

References (20)

1. Healy M.J. Statistics from the inside. 12. Non-normal data Arch Dis Child. 70:1994;158-163.
2. Altman D.G. Practical Statistics for Medical Research. 1991;Chapman and Hall, London.
3. Armitage P., Berry G. Statistical Methods in Medical Research. 1987;Blackwell, Oxford.
4. Bland J.M. An Introduction to Medical Statistics. 1995;Oxford University Press Inc, New York.
5. Machin D., Campbell M.J. Statistical Tables for the Design of Clinical Trials. 1987;Blackwell Scientific Publications, Oxford.
6. Elashoff J.D. nQuery Advisor Version 2.0 User's Guide. 1997;Dixon Associates, Los Angeles.
7. Borenstein M., Rothstein H., Cohen J. Power and Precision 1.20. 1997;Biostat, Englewood, NJ.
8. Taddio A., Nulman I., Reid E.et al. Effect of lidocaine-prilocaine cream (EMLA) on pain of intramuscular fluzone injection. Can J Hosp Pharm. 45:1992;227-230.
9. Himelstein B.P., Cnaan A., Blackall C.S.et al. Topical application of lidocaine-prilocaine (EMLA) cream reduces the pain of intramuscular infiltration of saline solution. J Pediatr. 129:1996;718-721.
10. Reis E.C., Holubkov R. Vapocoolant spray is equally effective as EMLA cream in reducing immunization pain in school-aged children. Pediatrics. 100:1997;e5.
11. Koren G. Use of the eutectic mixture of local anesthetics in young children for procedure-related pain. J Pediatr. 122:1993;S30-S35.
12. Hopkins C.S., Buckley C.J., Bush G.H. Pain-free injection in infants. Anaesthesia. 43:1988;198-201.
13. van Belle G., Martin D.C. Sample size as a function of coefficient of variation and ratio of means. American Statistician. 47:1993;165-167.
14. Mood A.M., Graybill F.A., Boes D.C. Introduction to the Theory of Statistics. 1974;McGraw-Hill Kogakusha, Tokyo.
15. Rosner B. Fundamentals of Biostatistics. 1995;PWS-KENT Publishing Company, Boston.
16. Guenther W.C. Sample size formulas for normal theory t test. American Statistician. 35:1981;243-244.
17. Moser B.K., Stevens G.R. Homogeneity of variance in the two-sample means test. American Statistician. 46:1992;19-21.
18. DiSantostefano R.L., Muller K.E. A comparison of power approximations for Satterthwaite's test. Communications in Statistics: Simulation and Computation. 24:1995;583-593.
19. Hintze J. PASS, version 6.0. 1998;NCSS Statistical Software, Kaysville, Utah.
20. Lachin J.M. Introduction to sample size determination and power analysis for clinical trials. Control Clin Trials. 2:1981;93-113.