Table 4 Comparison among source population, questionnaire and cognitive test samples in soccer players
| Â | Source population | Questionnaire sample | Cognitive sample | P-value* |
|---|---|---|---|---|
No. participants | 878 | 468 | 326 | – |
Age (years), mean (SD) | 63.40 (11.35) | 63.71 (10.47) | 63.33 (10.00) | .86 |
BMI (kg/m2), mean (SD) | 27.34 (3.00) | 27.22 (3.00) | 27.12 (2.88) | .49 |
SES, mean (SD) | 7.41 (2.42) | 7.50 (2.40) | 7.62 (2.36) | .45 |