J 2020

The conversion factor for predicting adenoma detection rate from polyp detection rate varies according to colonoscopy indication and patient sex

VOJTECHOVA, Gabriela, Ondřej NGO, Tomas GREGA, Klara KMOCHOVA, Michal VOSKA et. al.

Basic information

Original name

The conversion factor for predicting adenoma detection rate from polyp detection rate varies according to colonoscopy indication and patient sex

Authors

VOJTECHOVA, Gabriela (203 Czech Republic), Ondřej NGO (203 Czech Republic, belonging to the institution), Tomas GREGA (203 Czech Republic), Klara KMOCHOVA (203 Czech Republic), Michal VOSKA (203 Czech Republic), Barbora BUČKOVÁ (703 Slovakia, belonging to the institution), Ondřej MÁJEK (203 Czech Republic, belonging to the institution), Miroslav ZAVORAL and Stepan SUCHANEK (203 Czech Republic, guarantor)

Edition

European Journal of Cancer Prevention, Philadelphia, Lippincott Williams & Wilkins, 2020, 0959-8278

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30204 Oncology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.497

RIV identification code

RIV/00216224:14110/20:00118612

Organization unit

Faculty of Medicine

DOI

UT WoS

000545919600003

Keywords in English

adenoma detection rate; adenoma to polyp detection rate quotient; colonoscopy; conversion factor; linear regression coefficient; performance measures; polyp detection rate

Tags

Tags

International impact, Reviewed
Změněno: 3/8/2020 13:25, Mgr. Tereza Miškechová

Abstract

V originále

The adenoma detection rate (ADR) is the primary quality indicator for colonoscopies. The polyp detection rate (PDR) is available from administrative data and does not depend on histology verification. The correlation between PDR and ADR and the ADR/PDR conversion factor in preventive colonoscopies were evaluated. In the prospective study, asymptomatic individuals aged 45-75 years with preventive colonoscopy in 2012-2016 were included. Spearman's correlation coefficient was used to assess PDR/ADR for each endoscopist. Conversion factor predicting ADR from PDR was obtained by linear regression and subsequently compared with adenoma to polyp detection rate quotient. One thousand six hundred fourteen preventive colonoscopies performed by 16 endoscopists in 8 screening colonoscopy centres in the Czech Republic were analysed. Correlation between PDR and ADR in all preventive colonoscopies was high and statistically significant (Rs 0.82;P< 0.001). There was a strong correlation between PDR and ADR in men (Rs 0.74;P= 0.002) and in screening colonoscopies (Rs 0.85;P< 0.001). The conversion factor to convert ADR from PDR was 0.72 in all preventive colonoscopies, 0.76 in FOBT+ colonoscopies and 0.67 in screening colonoscopies. ADR may be replaced by PDR in the assessment of colonoscopy quality. The value of the conversion factor varies according to colonoscopy indication and gender of examined individuals; in this Czech study, it was 0.72 in all preventive colonoscopies. The minimum requested ADR of 25 % corresponds to a PDR of 35 %, when converted with the appropriate conversion factor.

Links

NV16-29614A, research and development project
Name: Porovnání účinnosti kolonické kapslové endoskopie a optické kolonoskopie u osob s pozitivním imunochemickým testem na okultní krvácení do stolice
NV17-31909A, research and development project
Name: Vývoj multiparametrického testu nové generace pro predikci rizika rekurence kolorektální neoplázie
NV18-08-00246, research and development project
Name: Endoskopická transmurální resekce versus standardní endoskopická terapie v léčbě kolorektální neoplázie – prospektivní randomizovaná studie
Investor: Ministry of Health of the CR