A nonparametric likelihood test for detecting discordance between two measurements with application to censored viral load determinations

Statistics in Medicine

Volumn 27, Issue 22, 2008, Pages 4489-4501

  Hu, Zonghui ^a   Follmann, Dean ^a   Qin, Jing ^a   Dewar, Robin L ^b   Sangweni, Phumelele ^c  

^a NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES   (United States)

^b SAIC FREDERICK INC   (United States)

^c 1 Military Hospital   (South Africa)

Author keywords

Detection limit; Likelihood ratio; Maximum likelihood estimation; McNemar test; Nonparametric likelihood

Indexed keywords

ARTICLE; BLOOD SAMPLING; CONCORDANCE; DATA ANALYSIS; DISCORDANCE; DISEASE SEVERITY; HUMAN; HUMAN IMMUNODEFICIENCY VIRUS INFECTION; MCNEMAR TEST; METHODOLOGY; MONTE CARLO PERMUTATION; NONPARAMETRIC LIKELIHOOD TEST; NONPARAMETRIC TEST; PERMUTATION TEST; STATISTICAL ANALYSIS; STATISTICAL MODEL; VIRUS LOAD;

ANTI-RETROVIRAL AGENTS; ANTIRETROVIRAL THERAPY, HIGHLY ACTIVE; CLINICAL TRIALS AS TOPIC; DATA INTERPRETATION, STATISTICAL; HIV INFECTIONS; HUMANS; LIKELIHOOD FUNCTIONS; MONTE CARLO METHOD; ODDS RATIO; REPRODUCIBILITY OF RESULTS; STATISTICS, NONPARAMETRIC; VIRAL LOAD;

EID: 52049107463     PISSN: 02776715     EISSN: 10970258     Source Type: Journal    
DOI: 10.1002/sim.3298     Document Type: Article

References (21)

1. Hill A, Miralles D, Vangeneugden T. Should we now adopt the HIV-RNA <50 copy endpoint for clinical trials of antiretroviral - experienced as well as naive patients? AIDS 2007; 21(12):1651-1653.
2. Quinn TC, Wawer MJ, Sewankambo N. Viral load and heterosexual transmission of human immunodeficiency virus type 1. New England Journal of Medicine 2000; 342:921-929.
3. Gray RH, Wawer MJ, Brookmeyer R. Probability of HIV-1 transmission per coital act in monogamous, heterosexual, HIV-1 discordant couples in Rakai, Uganda. The Lancet 2001; 357:1149-1153.
4. Salimnia H, Moore EC, Crane LR, MacArthur RD, Fairfax MR. Discordance between viral loads determined by Roche COBAS AMPLICOR human immunodeficiency virus type 1 monitor (version 1.5) standard and ultrasensitive assays caused by freezing patient plasma in centrifuged Becton-Dickinson vacutainer brand plasma preparation tubes. Journal of Clinical Microbiology 2005; 43:4635-4639.
5. Holodniy M, Rainen L, Herman S, Yen-Lieberman B. Stability of plasma human immunodeficiency virus load in vacutainer PPT plasma preparation tubes during overnight shipment. Journal of Clinical Microbiology 2000; 38:323-326.
6. Bland JM, Altman DG. Measurement in medicine: the analysis of method comparison studies. The Statistician 1983; 32:307-317.
7. Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. The Lancet 1986; 32:307-317.
8. Bland JM, Altman DG. Measuring agreement in method comparison studies. Statistical Methods in Medical Research 1999; 8:135-160.
9. Bartko JJ. The intraclass correlation coefficient as a measure of reliability. Psychological Reports 1966; 19:3-11.
10. McGraw KO, Wong SP. Forming inferences about some intraclass correlation coefficients. Psychological Methods 1996; 1:30-46.
11. Shrout PE, Fleiss JL. Intraclass correlations: uses in assessing rater reliability. Psychological Bulletin 1979; 86:420-428.
12. Lin LI. A concordance correlation coefficient to evaluate reproducibility. Biometrics 1989; 45:255-268.
13. Atkinson G, Nevill A. Comment on the use of concordance correlation to assess the agreement between two variables. Biometrics 1997; 53:775-777.
14. Fay M. Random marginal agreement coefficients: rethinking the adjustment for chance when measuring agreement. Biostatistics 2005; 6:171-180.
15. Barnhart HX, Song J, Lyles RH. Assay validation for left-censored data. Statistics in Medicine 2005; 24: 3347-3360.
16. Smirnov NV. Estimate of derivation between empirical distribution functions in two independent samples. Bulletin of Moscow University 1939; 2:3-16.
17. Owen AB. Nonparametric likelihood confidence bands for a distribution function. Journal of the American Statistical Association 1995; 90:516-521.
18. Miller R, Siegmund D. Maximally selected chi square statistics. Biometrics 1982; 38:1011-1016.
19. Halpern J. Maximally selected chi square statistics for small samples. Biometrics 1982; 38:1017-1023.
20. Efron B, Tibshirani RJ. An Introduction to the Bootstrap. Chapman & Hall: New York, 1993.
21. Landis JR, Koch GG. Observer agreement for categorical data. Biometrics 1977; 33:159-174.