Preventing Overdiagnosis Abstracts. BMJ Evid Based Med 2019;24(Suppl 2):A1–63. https://ebm.bmj.com/content/24/Suppl_2.

Since initial publication of these abstracts there are 2 additions (see online supplementary files 1 and 2) some changes and additions required as follows:

Abstract 49

Implementing primary HPV testing and extended screening intervals: Psychological impact of HPV results 12 months after implementation of the renewed Cervical Screening Program in Australia

Abstract 42

Preference-sensitive multi-criterial decision support can avoid the over-testing produced by mono-criterial guidelines: the case of bone health

Mette Kjer Kaltoft^1,2 Jack Dowie^1,2,3 Vije Kumar Rajput⁴

1. University of Southern Denmark, Odense, Denmark.

2. University of Sydney, Sydney, Australia.

3. London School of Hygiene and Tropical Medicine, London, UK.

4. Stonydelph Health Centre, Tamworth, UK.

Abstract 66

Rate of antimicrobial prescription appropriateness for treating upper respiratory tract infections in hajj

Hamid Bokhary^1,2,3,4, Osamah Barasheed⁵, Burhanudin Saha⁵, Hala B. Othman⁵, Moataz Abd El Ghany^2,3, Grant Hill-Cawthorne^1,2 and Harunor Rasheed^2,6 on behalf of the Hajj Research Team⁷.

1. School of Public Health, The University of Sydney, Sydney, NSW, Australia.

2. The Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Westmead, NSW, Australia.

3. The Westmead Institute for Medical Research, Westmead, NSW, Australia.

4. University Medical Centre, Umm Al-Qura University, Makkah, Saudi Arabia.

5. King Abdullah Medical City, Makkah, Saudi Arabia.

6. National Centre for Immunisation Research and Surveillance of Vaccine Preventable Diseases, Kids Research Institute, The Children's Hospital at Westmead, Westmead, NSW, Australia.

7. Hajj Research Team: Yaqoob Y. Abu-Bakr, Saleh O. Babattat, Osama A. Barnawi, Aseel Y. Damanhuri, Mohammed B. Ghandourah, Turki M. Alghashmari, Mohammed M. Haqash, Rajwan S. Aljawi, Ahmed M. Almadaabgy, Ibrahim A. Mahbub, Emtnan M. Al-Mdabgy, Fatimah M. Al-Otaibi, Mohammed S. Aloufi, Omar M. Qadi, Yousef M. Alturkistani, Azzam A. Alzahrani, Ridha A. Alshareef.