Table 2 Poisson regression model for number of knee disorders or injuries
From: Incidence and risk factors of exercise-related knee disorders in young adult men
IRR (95% CI) | P-value | |
|---|---|---|
Age | 0.92 (0.87–0.96) | <0.001 |
Military Service Class A | 1.29 (1.05–1.57) | 0.014 |
BMI (Body Mass Index) | ||
< 25.0 kg/m2 | 1.00 (Reference) | |
25.0–29.9 kg/m2 | 1.15 (1.03–1.30) | 0.016 |
≥ 30 kg/m2 | 0.98 (0.80–1.20) | 0.87 |
High physical activity | 0.99 (0.90–1.10) | 0.91 |
Smoking (cigarettes/day) | ||
0 | 1.00 (Reference) | |
1–9 | 1.24 (1.06 to 1.45) | 0.009 |
10–19 | 1.37 (1.21 to 1.55) | <0.001 |
≥ 20 | 1.35 (1.11 to 1.64) | <0.001 |
Comprehensive school only | 1.10 (1.00–1.22) | 0.046 |
Injuries | 1.07 (0.93–1.23) | 0.34 |
Symptoms of the musculoskeletal system | 1.59 (1.39–1.82) | <0.001 |
Symptoms of the respiratory system | 1.17 (1.05–1.30) | 0.005 |
Symptoms of the gastrointestinal system | 1.67 (1.31–2.12) | <0.001 |
Mental symptoms | 0.82 (0.64–1.06) | 0.13 |