Table 2 General characteristics of the study population
Cases (n = 107) | Controls (n = 114) | p | |
|---|---|---|---|
Age (mean ± SD years) | 57.6 ± 8.9 | 51.7 ± 8.7 | 0.00001 |
BMI (mean ± SD kg/m2) | 26.4 ± 2.8 | 25.7 ± 3.4 | 0.08 |
Gender, females (n, %) | 86 (81.1) | 95 (83.3) | 0.66 |
Smoking (n, %) | 21 (26.9) | 11 (26.83) | 0.9 |
Alcoholism (n, %) | 22 (28.2) | 10 (24.4) | 0.6 |
Occupational activity (n, %) | |||
Current (n, %) | 9 (8.4) | 11 (9.6) | 0.7 |
Previous (n, %) | 11 (10.3) | 14 (12.3) | 0.6 |
Sports activity | |||
Current (n, %) | 18 (16.8) | 29 (25.4) | 0.12 |
Previous (n, %) | 51 (47.7) | 76 (66.7) | 0.004 |
Kellgren-Lawrence grading | |||
Grade 0, n (%) | 0 | 70 (61.4) | |
Grade 1, n (%) | 0 | 44 (38.6) | |
Grade 2, n (%) | 38 (35.5) | 0 | |
Grade 3, n (%) | 46 (42.9) | 0 | |
Grade 4, n (%) | 23 (21.5) | 0 | |