Table 4.
ORs From Multinomial Logistic Regression Model Relating Triad Risk Factors to Risk of Prospective Trabecular-Rich or Cortical-Rich BSI a
| Trabecular-Rich BSI vs Cortical-Rich BSI |
Trabecular-Rich BSI vs No BSI |
Cortical-Rich BSI vs No BSI |
||||
|---|---|---|---|---|---|---|
| Characteristic b | OR (95% CI) | P | OR (95% CI) | P | OR (95% CI) | P |
| Spine BMD (per SD) | 3.08 (1.25-7.56) | .014 | 3.82 (1.67-8.77) | .0016 | 1.24 (0.76-2.04) | .39 |
| Total BMD (per SD) | 2.38 (1.22-4.64) | .011 | 1.84 (1.20-2.81) | .0052 | 0.77 (0.45-1.33) | .35 |
| Overall Triad cumulative risk score (per point) | 1.10 (0.82-1.47) | .52 | 1.51 (1.13-2.02) | .0059 | 1.37 (1.07-1.76) | .014 |
| Oligomenorrhea risk score (per point) | 1.68 (0.65-4.31) | .28 | 3.08 (1.33-7.11) | .0086 | 1.84 (0.95-3.55) | .071 |
| Previous BSI risk score (per point) | 1.01 (0.42-2.46) | .98 | 3.19 (1.41-7.22) | .0054 | 3.16 (1.68-5.95) | .0004 |
| BMD risk score (per point) | 1.92 (0.56-6.58) | .30 | 3.16 (1.09-9.15) | .034 | 1.65 (0.58-4.71) | .35 |
| Menarche risk score (per point) | 1.24 (0.50-3.06) | .64 | 2.13 (0.96-4.73) | .064 | 1.71 (0.92-3.18) | .089 |
| Stress reaction/stress fracture risk score (per point) | 1.87 (0.39-9.07) | .44 | 3.20 (0.76-13.53) | .11 | 1.71 (0.36-8.08) | .50 |
| Low energy availability risk score (per point) | 1.38 (0.30-6.31) | .68 | 2.64 (0.63-11.07) | .19 | 1.91 (0.49-7.44) | .35 |
| Weight (per SD lower) | 5.26 (1.48-18.70) | .01 | 4.55 (1.37-15.09) | .013 | 0.86 (0.53 -1.42) | .57 |
| Height (per SD higher) | 0.28 (0.10-0.78) | .015 | 0.59 (0.23-1.50) | .27 | 2.14 (1.24-3.69) | .0064 |
| BMI (per SD lower) | 2.61 (0.82-8.30) | .10 | 3.95 (1.34-11.60) | .013 | 1.51 (0.85-2.70) | .16 |
| Percentage body fat (per SD lower) | 1.35 (0.57-3.23) | .50 | 1.57 (0.73-3.37) | .25 | 1.16 (0.68-1.98) | .59 |
a Models are adjusted for cross-country running versus other sports. Boldface P values indicate statistical significance (P < .05). BMD, bone mineral density; BMI, body mass index; BSI, bone stress injury; OR, odds ratio.
b Overall Triad cumulative risk score is on a 0-to-12 point scale; individual Triad risk factor scores are on a 0-to-2 scale; BMD and body measures are in SD units.