Table 5.
Multivariate analysis of risk factors for stress fracture
| Risk factors | OR (95% CI) | p Value |
|---|---|---|
| School year | 1.15 (0.63 to 2.08) | 0.646 |
| BMI <18.5 kg/m2 | 2.55 (0.81 to 7.67) | 0.108 |
| Age at menarche (years) | 1.03 (0.76 to 1.40) | 0.844 |
| Menstrual pain | 0.96 (0.60 to 1.53) | 0.861 |
| Age at starting training (years) | 1.03 (0.91 to 1.16) | 0.673 |
| Participation of national or international competition | 1.55 (0.65 to 3.70) | 0.325 |
| Restriction of body weight | 2.47 (1.12 to 5.41) | 0.025 |
| Weekly training duration (hours/week) | 1.06 (1.01 to 1.13) | 0.015 |
| Premenstrual symptoms | ||
| Depressed mood | 0.75 (0.32 to 1.72) | 0.498 |
| Anxiety or tension | 1.88 (0.90 to 3.98) | 0.092 |
| Tearful | 0.70 (0.31 to 1.54) | 0.381 |
| Anger or irritability | 0.66 (0.30 to 1.45) | 0.301 |
| Decreased interest in work, home or social activities | 1.13 (0.54 to 2.36) | 0.739 |
| Difficulty concentrating | 1.06 (0.49 to 2.32) | 0.880 |
| Fatigue or lack of energy | 0.87 (0.43 to 1.73) | 0.696 |
| Overeating or food cravings | 1.19 (0.75 to 1.89) | 0.447 |
| Insomnia or hypersomnia | 0.74 (0.39 to 1.33) | 0.326 |
| Feeling overwhelmed | 1.85 (0.78 to 4.54) | 0.165 |
| Physical symptoms | 1.66 (1.06 to 2.62) | 0.026 |
| Induced interference with work, usual activities or relationships | ||
| Work efficiency or productivity, home responsibility | 0.70 (0.32 to 1.48) | 0.357 |
| Social life activities | 0.45 (0.08 to 1.54) | 0.228 |
| Relationships with coworkers or family | 0.54 (0.22 to 1.19) | 0.128 |
| Performance in training or competition | 1.29 (0.76 to 2.17) | 0.349 |
BMI, body mass index.