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Table 11 Comparison of current frequency of alcohol consumption between groups

From: Vitamin D levels and bone mineral density of middle-aged premenopausal female football and volleyball players in Japan: a cross-sectional study

 

Non-exercise

Volleyball

Football

P-value b

(n = 25)

(n = 40)

(n = 27)

None

6

13

8

0.07

(24.0) a

(32.5)

(29.6)

< 1 time/week

4

13

3

(16.0)

(32.5)

(11.1)

1 time/week

3

1

6

(12.0)

(2.5)

(22.2)

2 times/week

4

3

6

(16.0)

(7.5)

(22.2)

3 times/week

1

1

1

(4.0)

(2.5)

(3.7)

4 times/week

1

2

0

(4.0)

(5.0)

(0.0)

5 times/week

0

2

2

(0.0)

(5.0)

(7.4)

6 times/week

0

0

0

(0.0)

(0.0)

(0.0)

Every day

6

7

1

(24.0)

(17.5)

(3.7)

  1. a Number (%)
  2. b P: analysis of covariance
  3. c <1 time/week: less than 1 time/week