Table 2

Classification of alcohol consumption by year of study by sample and gender

Cross-sectional

Longitudinal

Cross-sectional

Longitudinal

Cross-sectional

Longitudinal

Male

Male

Female

Female

Total

Total

N

(%)

N

(%)

N

(%)

N

(%)

N

(%)

N

(%)


1st years

Low level drinking (low)

553

(51)

38

(48)

746

(49)

67

(46)

1299

(50)

105

(47)

Medium level drinking (medium)

91

(8)

7

(9)

420

(28)

40

(28)

511

(20)

47

(21)

High level drinking (high)

313

(29)

28

(35)

225

(15)

28

(19)

538

(21)

56

(25)

Very high level drinking (very high)

130

(12)

7

(9)

118

(8)

10

(7)

248

(10)

17

(8)


2nd years

Low level drinking (low)

442

(57)

48

(60)

682

(59)

92

(63)

1124

(58)

140

(62)

Medium level drinking (medium)

67

(9)

8

(10)

302

(26)

26

(18)

369

(19)

34

(15)

High level drinking (high)

203

(26)

21

(26)

121

(11)

19

(13)

324

(17)

40

(18)

Very high level drinking (very high)

63

(8)

3

(4)

48

(4)

8

(6)

111

(6)

11

(5)


3rd years

Low level drinking (low)

443

(67)

59

(74)

629

(69)

98

(68)

1072

(68)

157

(70)

Medium level drinking (medium)

48

(7)

4

(5)

194

(21)

36

(25)

242

(15)

40

(18)

High level drinking (high)

137

(21)

16

(20)

62

(7)

10

(7)

199

(13)

26

(12)

Very high level drinking (very high)

34

(5)

1

(1)

27

(3)

1

(1)

61

(4)

2

(1)


Male Low = 0–21 u/w, Medium = 21–28 u/w, High = 28–50 u/w, Very high = 50+ u/w

Female Low = 0–14 u/w, Medium = 14–21 u/w, High = 21–35 u/w, Very high = 35+ u/w

Bewick et al. BMC Public Health 2008 8:163   doi:10.1186/1471-2458-8-163

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