Variable | All Women (n = 107) | Women with Normal Cycles (n = 81) | Women with Amenorrhea/Oligomenorrhea (n = 25) | Women on Oral Contraceptives (n = 12) | Women never on Oral Contraceptive (n = 95) |
---|---|---|---|---|---|
Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | |
Age | 18.4 (± 0.8) | 18.4 (± 0.8) | 18.6 (± 0.9) | 18.6 (± 1.0) | 18.4 (± 0.7) |
Age of Menarche (years) | 12.8 (± 1.2) | 12.6 (± 1.1) | 13.6 (± 0.9) * | 12.5 (± 1.2) | 12.9 (± 1.1) |
BMI (kg/mg2) | 23.0 (± 2.3) | 23.3 (± 2.4) | 22.6 (± 2.0) | 22.8 (± 1.8) | 23.2 (± 2.4) |
Height (inches) | 65.7 (± 2.4) | 65.6 (± 2.5) | 66.1 (± 1.8) | 64.6 (± 3.0) | 65.8 (± 2.3) |
Weight (pounds) | 142 (± 17) | 142.4 (± 17.8) | 140.6 (± 15.3) | 135.3 (± 12.8) | 142.6 (± 17.4) |
Army Physical Fitness Test (APFT 0–300) | 207.8 (± 40.9) | 206.0 (± 39.3) | 215.1 (± 39.3) | 188.3 (± 52.3) | 211.8 (± 36.6) |
Run score (range 0–100) | 74 (± 22) | 72.3 (± 22.1) | 77.7 (± 22.0) | 59.9 (± 25.7) # | 76.1 (± 20.9) |
Calcium Intake (mg/day) | 1074 (± 463) | 1167 (± 459) | 1014 (± 389) | 937 (± 419) | 1142 (± 449) |
Exercise (hrs/week) %, (n) | |||||
1–3 | 3.0 (4) | 2.9 (3) | 3.4 (1) | 0 (0) | 1 (1) |
4–6 | 19.5 (26) | 19.4 (38) | 20.7 (6) | 41.7 (5) | 15.6 (15) |
7–10 | 33.8 (45) | 36.9 (24) | 24.1 (7) | 33.3 (4) | 38.5 (37) |
11+ | 43.6 (58) | 40.8 (42) | 51.7 (15) | 25.0 (3) | 44.8 (43) |
Milk (glass/day) %, (n) | |||||
0 | 11.3 (15) | 10.7 (11) | 13.8 (15) | 8.3 (1) | 11.5 (11) |
<1 | 29.3 (39) | 23.3 (24) | 48.3 (14) | 25.0 (3) | 25.0 (24) |
1–2 | 46.6 (62) | 52.4 (54) | 27.6 (8) | 50.0 (6) | 49.0 (47) |
3+ | 12.8 (17) | 13.6 (14) | 10.3 (3) | 16.7 (2) | 14.6 (14) |
Caffeinated Drink/Day %, (n) | |||||
None | 24.1(32) | 22.3 (23) | 27.6 (8) | 33.3 (4) | 20.8 (20) |
1–3 | 69.2 (92) | 70.9 (73) | 65.5 (19) | 58.3 (7) | 70.8 (68) |
3+ | 6.8 (9) | 6.8 (7) | 6.9 (2) | 8.3 (1) | 8.3 (8) |
Alcohol Consumption %, (n) | |||||
Less than once a month | 66.9 (91) | 70.9 (73) | 55.2 (16) | 66.7 (8) | 64.6 (62) |
1–3 times a month | 21.3 (28) | 18.4 (19) | 34.5 (10) | 16.7 (2) | 24.0 (23) |
1–2 times a week | 8.8 (12) | 8.7 (9) | 10.3 (3) | 8.3 (1) | 11.5 (11) |
>3 times a week | 1.5 (2) | 1.9 (2) | 0.0 (0) | 8.3 (1) | 0 (0) |
Smokers %, (n) | 3.0 (4) | 2.9 (3) | 3.4 (1) | 8.3 (1) | 2.2 (2) |
History of Fracture (% yes); n | 34.1 (46) | 38.8 (40) | 24.1 (7) | 33.3 (4) | 37.5 (36) |