Jordaan, EsmeBrill, StephanSchwellnus, MartinSewry, Nicola2023-07-182023-07-182023Brill, S., Schwellnus, M., Sewry, N., Janse Van Rensburg, D.C., Jansen Van Rensburg, A., Jooste, M., Leppan, J., Boulter, J., Seocharan, I. and Jordaan, E., 2023. Pre-race self-reported medical conditions and allergies in 133 641 Comrades ultramarathon (90km) runners-SAFER XXIII. The Physician and Sportsmedicine, 51(1), pp.88-95.http://dx.doi.org/10.1080/00913847.2021.2004080http://hdl.handle.net/10566/9214Objectives: To determine the prevalence of self-reported pre-race chronic medical conditions and allergies in ultramarathon race entrants and to explore if these are associated with an Increased risk of race-day medical encounters (MEs). Methods: Data from two voluntary open-ended pre-race medical screening questions (Q1 – history of allergies; Q2 - history of chronic medical conditions/prescription medication use) were collected in 133 641 Comrades Marathon race entrants (2014-2019). Race-day ME data collected prospectively over 6 years are reported as incidence (per 1000 starters) and incidence ratios (IR: 95%CI’s).enRunningPre-participation medical screeningCardiovascular diseaseChronic diseaseRisk factorsArticle