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Biostatistics Fast Help

What is it for?

You need a quick refresher to confirm that you are analyzing your data correctly.

What's in it?

Listed below are classic Statistical Short Notes about biostatistics that are built around clinical scenarios that illustrate the technique or statistical tool.

See also


Topic Title Authors
Correlations Calculating correlation coefficients with repeated observations.
Part 1: Correlation within subjects		 J Martin Bland & Douglas G Altman BMJ 1995;310:446
Correlations Calculating correlation coefficients with repeated observations.
Part 2: Correlation between subjects		 J Martin Bland & Douglas G Altman BMJ 1995;310:633
Correlations Absence of evidence is not evidence of absence Douglas G Altman & J Martin Bland BMJ 1995;311:485
Correlations The intracluster correlation coefficient in cluster randomisation Sally M Kerry &J Martin Bland BMJ 1998;316:1455-1460
Diagnostic significance Diagnostic tests.
Part 1: sensitivity and specificity 		Douglas G Altman &J Martin Bland
BMJ 1994;308:1552
Diagnostic significance Diagnostic tests.
Part 2: predictive values 		Douglas G Altman & J Martin Bland
BMJ 1994;309:102
Diagnostic significance Diagnostic tests.
Part 3: receiver operating characteristic plots 		Douglas G Altman & J Martin Bland
BMJ 1994;309:188
Diagnostic significance Diagnostic tests.
Part 4: likelihood ratios. 		JJ Deeks & Douglas G Altman BMJ 2004 329:168-169
Measurement error Measurement error and correlation coefficients J Martin Bland & Douglas G Altman BMJ 1996;313:41-42
Measurement error Measurement error proportional to the mean J Martin Bland & Douglas G Altman BMJ 1996;313:106
Measurement error Measurement error J Martin Bland & Douglas G Altman BMJ 1996;313:744
Measurement error Sample size in cluster randomisation Sally M Kerry & J Martin Bland BMJ 1998;316:549
Measurement error Standard deviations and standard errors. Altman DG, Bland JM. BMJ. 2005 Oct 15;331(7521):903
Measurement error Missing data J Martin Bland, Douglas G Altman BMJ. 2007 Feb 24;334(7590):424
Randomization Trials randomised in clusters J Martin Bland & Sally M Kerry BMJ 1997;315:600
Randomization Analysis of a trial randomised in clusters Sally M Kerry & Martin Bland BMJ 1998;316:54
Randomization Treatment allocation in controlled trials: why randomise? Douglas G Altman & J Martin Bland BMJ 1999;318:1209-1209
Randomization How to randomise Douglas G Altman & J Martin Bland BMJ 1999;319:703-704
Randomization Blinding in clinical trials and other studies Simon J Day &Douglas G Altman BMJ 2000;321:504
Randomization Matching J Martin Bland & Douglas G Altman BMJ 1994;309:1128
Regression Some examples of regression towards the mean J Martin Bland Douglas G Altman
BMJ 1994;309:780
Significance testing One and two sided tests of significance J Martin Bland & Douglas G Altman
BMJ 1994;309:248
Significance testing The normal distribution Douglas G Altman & J Martin Bland BMJ 1995;310:298
Significance testing Comparing several groups using analysis of variance Douglas G Altman & J Martin Bland BMJ 1996;312:1472-1473
Significance testing Analysing controlled trials with baseline and follow up measurements Andrew J Vickers & Douglas G Altman BMJ 2001;323:1123-1124
Significance testing Multiple significance tests: the Bonferroni method J Martin Bland & Douglas G Altman BMJ 1995;310:170
Significance testing Interaction 1: heterogeneity of effects Douglas G Altman & John NS Matthews BMJ 1996;313:486
Significance testing Interaction 2: compare effect sizes not P values John NS Matthews & Douglas G Altman BMJ 1996;313:808
Significance testing Interaction 3: How to examine heterogeneity John NS Matthews & Douglas G Altman BMJ 1996;313:862
Significance testing Interaction revisited: the difference between two estimates Douglas G Altman & J Martin Bland BMJ 2003;326:219
Statistical tests The logrank test J Martin Bland & Douglas G Altman BMJ 2004 328(7447):1073
Summarization Quartiles, quintiles, centiles, and other quantiles Douglas G Altman J Martin Bland
BMJ 1994;309:996
Summarization Presentation of numerical data J Martin Bland & Douglas G Altman BMJ 1996;312:572
Summarization Detecting skewness from summary information Douglas G Altman & J Martin Bland BMJ 1996;313:1200
Summarisation Generalisation and extrapolation Douglas G Altman & J Martin Bland BMJ 1998;317:409-410
Survival analysis Time to event (survival) data Douglas G Altman & J Martin Bland BMJ 1998;317:468-469
Survival analysis Survival probabilities (the Kaplan-Meier method) J Martin Bland, & Douglas G Altman BMJ 1998;317:1572-1580
Transformation Transforming data J Martin Bland & Douglas G Altman BMJ 1996;312:770
Transformation Transformations, means, and confidence intervals J Martin Bland & Douglas G Altman BMJ 1996;312:1079
Transformation The use of transformation when comparing two means J Martin Bland & Douglas G Altman BMJ 1996;312:1153
Understanding statistics Logarithms J Martin Bland & Douglas G Altman BMJ 1996;312:700
Understanding statistics Cronbach's alpha J Martin Bland & Douglas G Altman BMJ 1997;314:572
Understanding statistics Units of analysis Douglas G Altman & J Martin Bland BMJ 1997;314:1874
Understanding statistics Weighted comparison of means Martin Bland & Sally M Kerry BMJ 1998;316:129
Understanding statistics Bayesians and frequentists J Martin Bland & Douglas G Altman BMJ 1998;317:1151-1160
Understanding statistics The odds ratio Douglas G Altman & J Martin Bland BMJ 2000;320:1468
Understanding statistics Treatment allocation by minimisation Altman DG, Bland JM. BMJ. 2005 Apr 9;330(7495):843
Understanding statistics Concealing treatment allocation in randomized trials Douglas G Altman & Kenneth F Schulz BMJ 2001;323:446-447
What to measure Validating scales and indexes J Martin Bland & Douglas G Altman BMJ 2002;324:606-607
What to measure Variables and parameters Douglas G Altman & J Martin Bland BMJ 1999;318:1667-1667

ypouliot, October 12, 2009

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