Sequential interim analyses of survival data in DNA microarray experiments
2011

Early Stopping in Survival Studies Using Microarray Data

Sample size: 50 publication 10 minutes Evidence: moderate

Author Information

Author(s): Leha Andreas, Beißbarth Tim, Jung Klaus

Primary Institution: University Medical Center Göttingen

Hypothesis

Can interim analyses in microarray experiments provide evidence for early stopping of long-term survival studies?

Conclusion

Interim analyses of microarray experiments can provide evidence for early stopping of long-term survival studies.

Supporting Evidence

  • Interim analyses can lead to early stopping of studies, saving time and resources.
  • The new estimator for power rates is comparable to existing methods.
  • False discovery rates were maintained at pre-specified levels during interim analyses.

Takeaway

This study looks at how we can check results early in cancer research using gene data, which can help save time and resources.

Methodology

The study used simulations to evaluate false discovery rates and power rates in microarray experiments during interim analyses.

Potential Biases

Potential biases may arise from the choice of stopping criteria and the handling of multiple testing.

Limitations

The study's findings may not apply to all types of high-dimensional data or different study designs.

Participant Demographics

The study involved simulated data based on cancer patients, with a focus on breast cancer.

Statistical Information

P-Value

0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2105-12-127

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