Table 1.
Variable | M (SD) | 1. | 2. | 3. | 4. | 5. | 6. | 7. | 8. | 9. |
1. LAT spine BMD (g/cm2) | 0.77 (0.09) | 1.000 | .799*** | -.017 | .502*** | .075 | -.237* | -.081 | .031 | -.142† |
2. AP spine BMD (g/cm2) | 1.00 (0.09) | 1.000 | -.054 | .512*** | .127 | -.254* | -.070 | .102 | -.097 | |
3. Current age | 18.64 (0.62) | 1.000 | -.124 | -.137 | .080 | .240* | -.096 | .314** | ||
4. Lean body mass (kg) | 42.63 (5.18) | 1.000 | .098 | .045 | .121 | .102 | .207* | |||
5. BPAQ physical activity score | 43.90 (34.50) | 1.000 | .060 | .032 | .101 | .059 | ||||
6. Age at menarche | 12.07 (1.36) | 1.000 | -.084 | -.086 | .146† | |||||
7. Years using oral contraceptives | 1.31 (1.48) | 1.000 | .164* | .255* | ||||||
8. Early HED (≤15 years = 1, >15 years = 0) | 0.21 (0.41) | 1.000 | .247* | |||||||
9. Frequent HED (≥115 times = 1, <115 times = 0) | 0.21 (0.41) | 1.000 |
Notes: BPAQ = Bone-Specific Physical Activity Questionnaire.
p < .05;
p < .01;
p < .001;
p marginally significant between .05 and .09.