Males

Females

Non-alcoholic beverage consumption

Non-alcoholic beverage consumption

“No”

“One time”

“Two or more times”

χ²

“No”

“One time”

“Two or more times”

χ²

%

%

%

%

%

%

Ever drank alcohol

10th

30.0

71.8

81.6

307.71^*

26.1

65.2

75.0

257.26^*

11th

36.2

73.4

86.8

248.91^*

34.3

69.6

78.1

207.43^*

12th

44.6

78.2

85.9

187.81^*

40.0

68.5

82.4

158.78^*

Total

36.5

74.3

84.7

740.34^*

33.1

67.9

78.6

621.83^*

Current alcohol use

10th

8.0

20.3

34.8

140.03^*

7.4

23.0

38.9

172.77^*

11th

9.6

19.7

40.6

140.98^*

10.5

26.2

36.0

110.02^*

12th

15.8

30.9

46.6

121.51^*

13.5

23.5

46.8

129.32^*

Total

10.9

23.3

40.8

405.36^*

10.3

24.3

40.6

405.05^*

Current frequent alcohol use

10th

0.6

1.5

5.7

38.60^*

0.6

1.1

1.9

3.56

11th

1.0

0.5

5.2

23.74^*

0.3

1.4

3.5

24.54^*

12th

2.0

3.4

4.2

4.86

0.8

0.6

1.4

0.91

Total

1.2

1.7

5.0

51.17^*

0.6

1.0

2.3

19.80^*

Chugging

10th

3.6

8.9

16.3

62.30^*

3.0

7.5

10.6

28.77^*

11th

4.1

13.8

16.5

60.96^*

4.6

9.3

11.0

18.33^*

12th

8.5

16.0

28.1

74.65^*

4.8

12.3

22.9

80.55^*

Total

5.3

12.8

20.6

200.89^*

4.1

9.7

14.9

123.37^*