Tutorial: using confidence curves in medical research

Ralf Bender, Gabriele Berg, Hajo Zeeb

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Confidence intervals represent a routinely used standard method to document the uncertainty of estimated effects. In most cases, for the calculation of confidence intervals the conventional fixed 95% confidence level is used. Confidence curves represent a graphical illustration of confidence intervals for confidence levels varying between 0 and 100%. Although such graphs have been repeatedly proposed under different names during the last 40 years, confidence curves are rarely used in medical research. In this paper, we introduce confidence curves and present a short historical review. We draw attention to the different interpretation of one- and two-sided statistical inference. It is shown that these two options also have influence on the plotting of appropriate confidence curves. We illustrate the use of one- and two-sided confidence curves and explain their correct interpretation. In medical research more emphasis on the choice between the one- and two-sided approaches should be given. One- and two-sided confidence curves are useful complements to the conventional methods of presenting study results.

OriginalsprogEngelsk
TidsskriftBiometrical Journal
Vol/bind47
Udgave nummer2
Sider (fra-til)237-47
Antal sider11
ISSN0323-3847
StatusUdgivet - apr. 2005

Fingeraftryk

Confidence
Curve
Confidence interval
Confidence Level
Statistical Inference
Tutorial
Medical research
Complement
Uncertainty
Graph in graph theory
Interpretation

Citer dette

Bender, Ralf ; Berg, Gabriele ; Zeeb, Hajo. / Tutorial : using confidence curves in medical research. I: Biometrical Journal. 2005 ; Bind 47, Nr. 2. s. 237-47.
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Bender, R, Berg, G & Zeeb, H 2005, 'Tutorial: using confidence curves in medical research', Biometrical Journal, bind 47, nr. 2, s. 237-47.

Tutorial : using confidence curves in medical research. / Bender, Ralf; Berg, Gabriele; Zeeb, Hajo.

I: Biometrical Journal, Bind 47, Nr. 2, 04.2005, s. 237-47.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

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AU - Berg, Gabriele

AU - Zeeb, Hajo

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KW - Biometry

KW - Cattle

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KW - Decision Making, Computer-Assisted

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KW - Melanoma

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KW - Research Design

KW - Risk Factors

KW - Superinfection

KW - Survival Analysis

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