Table 2.
Biomarkers1 | F-NLR Rugby players, n = 779 | Student athletes, n = 171 |
---|---|---|
CRP, mg/L | ||
COVID(−)Athletes, median (Q1; Q3), D0 | 1.1 (0.9; 4.0) | 0.6 (0.3; 1.5) |
Athletes with levels > 5 mg/L, n % | 47 (9.0) | 9 (6.3) |
Among COVID(+)incident Athletes with paired pre-and post-infection samples, n = 161: | ||
Pre-COVID time point, median (Q1; Q3) | 1.5 (1.0; 4.0) | NA |
Athletes with levels > 5 mg/L, n % | 9 (5.6) | NA |
Post-COVID time point median (Q1; Q3) | 2.0 (1.0; 4.0) | NA |
Athletes with levels > 5 mg/L, n % | 14 (8.7) | NA |
Troponin, ng/L | ||
COVID (−)Athletes, median (Q1; Q3), D0 | 5.7 (3.8; 10.0) | NA |
Athletes with levels > 34 ng/L, n % | 11 (2.1) | NA |
Among COVID(+)incident Athletes with paired pre-and post-infection samples, n = 136: | ||
Pre-COVID time point, median (Q1; Q3) | 5.1 (4.1; 10.5) | NA |
Athletes with levels > 34 ng/L, n % | 8 (5.9) | NA |
Post-COVID time point, median (Q1; Q3) | 5.1 (4.7; 13.0) | NA |
Athletes with levels > 34 ng/L, n % | 8 (5.9) | NA |
D-Dimer, ng/mL | ||
COVID(−)Athletes, median (Q1; Q3), D0 | 270.0 (215.0; 285.0) | NA |
Athletes with levels > 400 ng/ml, n % | 43 (8.3) | NA |
Among COVID(+)incident Athletes with paired pre-and post-infection samples, n = 139 | ||
Pre-COVID time point, median (Q1; Q3) | 231.0 (215.0; 270.0) | NA |
Athletes with levels > 400 ng/ml, n % | 11 (7.9) | NA |
Post-COVID(+) time point, median (Q1; Q3) | 270.0 (215.0; 318.0) | NA |
Athletes with levels > 400 ng/ml, n % | 24 (17.3) | NA |
1Threshold for normal values was < 5 mg/L; < 34 ng/ml, and < 400 ng/mL for CRP, troponin I and D-Dimers, respectively. COVID(−) athletes: inclusion (D0) values described for those never having any evidence of prevalent or incident infection during the study (i.e., excluding also pre-infection values of later COVID(+)incident). For the COVID(+)incident players subgroup with laboratory assessments available pre- and post-SARS-CoV2 infection, median (Q1; Q3) days after infection was 7 (7; 12)