Table 4.

Characteristics of the proposed diagnostic tools.

Tool	Target athletes	Aim	Number of parameters	Score (points) and criteria
EROS-CLINICAL	Suspected of OTS (possible signs of imminent or incipient OTS)	Diagnosis of OTS in suspected athletes, easy-to-perform and not time- or fund-consuming	9	0–2 = excluded for OTS 3–5 = inconclusive 6–9 = diagnosis of OTS
EROS-SIMPLIFIED	Suspected of OTS when the diagnosis was not confirmed using the EROS-CLINICAL criteria	Diagnosis of OTS in suspected athletes when the diagnosis was not confirmed using the EROS-CLINICAL criteria	13	0–3 = excluded for OTS 4–6 = inconclusive 7–8 = probable OTS 9–13 = diagnosis of OTS
EROS-COMPLETE	Population-based screenings; athletes participating in research Exception, suspected of OTS when the diagnosis was not confirmed using the EROS-SIMPLIFIED criteria	Diagnosis of OTS in large populations of athletes, irrespective of the risk or probability of OTS Identification of risk factors, biomarkers, and tools for the prevention and diagnosis of OTS Exception, individual diagnosis of OTS when the diagnosis was not confirmed using the EROS-SIMPLIFIED criteria	20	0–4 = excluded for OTS 5–10 = inconclusive 11–20 = diagnosis of OTS
EROS-RISK	At high risk for OTS (absence of clinical or biochemical signs)	Prevention of OTS in high-risk athletes	11	0–1 = low risk of OTS 2–4 = moderate risk of OTS 5–6 = high risk of OTS 7–11 = imminent risk of OTS

OTS = overtraining syndrome.