Barcot Ognjen

Ognjen Barčot defended his doctoral thesis at the TRIBE graduate program on February 25, 2021.


Photo: Ognjen and his mentor Prof. Livia Puljak

Thesis title: Adequacy of risk of bias assessment in surgical vs non-surgical trials in Cochrane reviews
Mentor: Prof. Livia Puljak
Full text of the PhD thesis: (TRIBE repository: pdf)

Doctoral thesis is based on following publications:
1. Barcot O, Boric M, Poklepovic Pericic T, Cavar M, Dosenovic S, Vuka I, Puljak L. Risk of bias judgments for random sequence generation in Cochrane systematic reviews were frequently not in line with Cochrane Handbook.
BMC Med Res Methodol. 2019 Aug 5;19(1):170. doi: 10.1186/s12874-019-0804-y. IF = 3.031

2. Barcot O, Dosenovic S, Boric M, Pericic TP, Cavar M, Jelicic Kadic A, Puljak L. Assessing risk of bias judgments for blinding of outcome assessors in Cochrane reviews. J Comp Eff Res. 2020 Jun;9(8):585-593. doi: 10.2217/cer-2019-0181. IF = 1.468

3. Barcot O, Boric M, Dosenovic S, Poklepovic Pericic T, Cavar M, Puljak L. Risk of bias assessments for blinding of participants and personnel in Cochrane reviews were frequently inadequate. J Clin Epidemiol. 2019 Sep;113:104-113. doi: 10.1016/j.jclinepi.2019.05.012. Epub 2019 May 24.  IF = 4.952

4. Barcot O, Boric M, Dosenovic S, Cavar M, Jelicic Kadic A, Poklepovic Pericic T, Vukicevic I, Vuka I, Puljak L. Adequacy of risk of bias assessment in surgical vs non-surgical trials in Cochrane reviews: a methodological study. BMC Med Res Methodol. 2020 Sep 29;20(1):240. doi: 10.1186/s12874-020-01123-7. IF = 3.031

5. Barcot O, Boric M, Dosenovic S, Puljak L. Assessing the risk of performance and detection bias in Cochrane reviews as a joint domain is less accurate compared to two separate domains. BMC Medical Research Methodology. 2021;21(1):149. (JIF in year 2021: 4.615)


Enrollment year: Transfer student  Print page