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Comment
. 2000 Jun 24;320(7251):1730; author reply 1730-1.

Open access follow up for inflammatory bowel disease. Would have been better to use t test than Mann-Whitney U test

J A Barber, S G Thompson
Comment

Open access follow up for inflammatory bowel disease. Would have been better to use t test than Mann-Whitney U test

J A Barber et al. BMJ. .
No abstract available

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References

    1. Williams JG, Cheung WY, Russell IT, Cohen DR, Longo M, Lervy B. Open access follow up for inflammatory bowel disease: pragmatic randomised trial and cost effectiveness study. BMJ. 2000;320:544–548. . (26 February.) - PMC - PubMed
    1. A ltman DG, Gore SM, Gardner MJ, Pocock SJ. Statistical guidelines for contributors to medical journals. BMJ. 1983;286:1489–1493. - PMC - PubMed
    1. Bradley JV. Distribution-free statistical tests. Paramus, NJ: Prentice-Hall; 1968.
    1. Barber JA, Thompson SG. Analysis of cost data in randomised controlled trials: an application of the non parametric bootstrap. Stat Med (in press). - PubMed
    1. Barber JA, Thompson SG. Analysis and interpretation of cost data in randomised controlled trials: review of published studies. BMJ. 1998;317:1195–1200. - PMC - PubMed

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