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Table 1 Descriptive variables for Caucasian women (values are mean (standard deviation) unless otherwise stated)

From: The influence of lifestyle, menstrual function and oral contraceptive use on bone mass and size in female military cadets

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)

  1. * p < 0.05 versus women with normal cycles
  2. # p < 0.05 versus women never on oral contraceptives
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Nutrition & Metabolism

ISSN: 1743-7075

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