Comment in

• Letter to Editor: A Proposal to Mitigate the Consequences of Type 2 Error in Surgical Science.

  Helminen O, Reito A. Helminen O, et al. Ann Surg. 2019 Jan;269(1):e10-e11. doi: 10.1097/SLA.0000000000002907. Ann Surg. 2019. PMID: 29979244 No abstract available.
• Post Hoc Power Calculation: Observing the Expected.

  Plate JDJ, Borggreve AS, van Hillegersberg R, Peelen LM. Plate JDJ, et al. Ann Surg. 2019 Jan;269(1):e11. doi: 10.1097/SLA.0000000000002910. Ann Surg. 2019. PMID: 29979245 No abstract available.
• Post Hoc Power: A Surgeon's First Assistant in Interpreting "Negative" Studies.

  Bababekov YJ, Chang DC. Bababekov YJ, et al. Ann Surg. 2019 Jan;269(1):e11-e12. doi: 10.1097/SLA.0000000000002914. Ann Surg. 2019. PMID: 29979247 No abstract available.
• Don't Calculate Post-hoc Power Using Observed Estimate of Effect Size.

  Gelman A. Gelman A. Ann Surg. 2019 Jan;269(1):e9-e10. doi: 10.1097/SLA.0000000000002908. Ann Surg. 2019. PMID: 29994928 No abstract available.
• Comment on "Post-hoc Power Using Observed Estimate of Effect Size is too Noisy to be Useful".

  Gelman A. Gelman A. Ann Surg. 2019 Aug;270(2):e64. doi: 10.1097/SLA.0000000000003089. Ann Surg. 2019. PMID: 30365417 No abstract available.
• Comment on "Post-hoc Power: A Surgeons's First Assistant in Interpreting 'Negative' Studies" and "A Proposal to Mitigate the Consequences of Type 2 Error in Surgical Science".

  Helminen O, Reito A. Helminen O, et al. Ann Surg. 2019 Dec;270(6):e77-e78. doi: 10.1097/SLA.0000000000003288. Ann Surg. 2019. PMID: 30921055 No abstract available.
• Response to Comment on "Misinterpretation of Results With P > 0.05 May Harm Quality and Patient Safety".

  Bababekov Y, Lee H, Chang D. Bababekov Y, et al. Ann Surg. 2019 Dec;270(6):e79-e80. doi: 10.1097/SLA.0000000000003314. Ann Surg. 2019. PMID: 30973392 No abstract available.
• Comment on "Post-hoc Power: If You Must, At Least Try to Understand".

  Althouse AD, Chow ZR. Althouse AD, et al. Ann Surg. 2019 Dec;270(6):e78-e79. doi: 10.1097/SLA.0000000000003296. Ann Surg. 2019. PMID: 31726621 No abstract available.
• A Response to Some Criticisms of Post Hoc Power.

  Carle AC. Carle AC. J Surg Res. 2021 Mar;259:A7-A8. doi: 10.1016/j.jss.2020.09.011. Epub 2020 Oct 16. J Surg Res. 2021. PMID: 33077164 No abstract available.