Table 1.
Characteristics of the Football Players Health Study (FPHS), National Health and Nutrition Examination Survey (NHANES) and National Health Interview Survey (NHIS) cohorts
| FPHS | NHANES | NHIS | |
| 2015–2019 | 2015–2018 | 2019 | |
| N=2684 | N=1481 | N=6298 | |
| Age mean (SD (SD)) | 43.9 (9.6) | 42.3 (10.4) | 43.1 (10.2) |
| Age N (%) | |||
| 25–29* | 177 (6.6) | 209 (14.1) | 770 (12.2) |
| 30–39 | 834 (31.1) | 413 (27.9) | 1723 (27.4) |
| 40–49 | 712 (26.5) | 414 (28.0) | 1714 (27.2) |
| 50–59 | 961 (35.8) | 445 (30.0) | 2091 (33.2) |
| Race N (%) | |||
| Black | 1291 (48.1) | 617 (40.1) | 851 (13.5) |
| White | 1393 (51.9) | 920 (59.9) | 5447 (86.5) |
| Body mass index (BMI)† Mean (SD) | 31.69 (5.12) | 30.0 (7.1) | 28.4 (4.8) |
| BMI N (%) | |||
| 25–29 | 30.25 (4.37) | 27.9 (6.9) | 27.2 (5.0) |
| 30–39 | 31.43 (5.05) | 30.37 (8.0) | 27.7 (4.7) |
| 40–49 | 32.21 (5.33) | 30.99 (6.6) | 28.9 (4.7) |
| 50–59 | 31.84 (5.27) | 29.68 (6.3) | 28.9 (4.8) |
| Lineman status N (%) | |||
| Non-lineman | 1763 (65.69) | – | – |
| Lineman | 921 (34.31) | – | – |
| Years of play mean (SD) | 6.39 (3.9) | – | – |
| Healthspan status N (%)‡ | |||
| Diminished | 1458 (56.3) | – | 2308 (36.7) |
| Intact | 1132 (43.7) | – | 3982 (63.3) |
| Missing | 94 (3.5) | 8 (0.1) | |
| Dementia/Alzheimer’s disease N (%)‡ | |||
| No | 2628 (97.9) | – | 6280 (99.7) |
| Yes | 56 (2.1) | – | 10 (0.2) |
| Missing | – | – | 8 (0.1) |
| Arthritis N (%) | |||
| No | 1538 (57.3) | 1237 (80.5) | 5375 (85.3) |
| Yes | 1146 (42.7) | 298 (19.4) | 923 (14.7) |
| Missing | – | 2 (0.1) | – |
| Diabetes N (%) | |||
| No | 2477 (92.3) | 1363 (88.7) | 5853 (92.9) |
| Yes | 170 (6.3) | 122 (7.9) | 445 (7.1) |
| Missing | 37 (1.4) | 52 (3.4) | – |
| Hypertension N (%) | |||
| No | 1915 (71.3) | 1119 (72.8) | 4571 (72.6) |
| Yes | 747 (27.8) | 415 (27.0) | 1727 (27.4) |
| Missing | 22 (0.8) | 3 (0.2) | – |
*One FPHS participant was 24 years old.
†94 FPHS participants are missing BMI.
‡Healthspan and dementia/Alzheimer’s disease status could only be calculated for NHIS and not NHANES as NHANES does not include dementia/Alzheimer’s disease survey data that are comparable to FPHS.