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Table 6 Number (and percentage) of students reporting a perceived drinking norm within each gender-adjusted ordinal category

From: An exploratory cluster randomised trial of a university halls of residence based social norms marketing campaign to reduce alcohol consumption among 1st year students

 

Intention to treat

Per protocol

 

Intervention

Control

Seen

Not seen

Non-drinker

16 (6.8)

19 (6.8)

28 (7.3)

6 (5.4)

Within recommended limits*

92 (39.3)

102 (36.4)

143 (37.2)

43 (38.7)

Slightly hazardous**

42 (18.0)

36 (12.9)

63 (16.4)

14 (12.6)

Hazardous***

45 (19.2)

67 (23.9)

79 (20.6)

28 (25.2)

Harmful****

39 (16.7)

56 (20.0)

71 (18.5)

20 (18.0)

Geometric mean units per week (and 95% CI) - drinkers only

17.7 (15.6 to 20.2)

18.7 (16.6 to 21.0)

18.3 (16.5 to 20.3)

17.9 (14.8 to 21.6)

Geometric mean units per week (and 95% CI)

14.8 (12.7 to 17.3)

15.6 (13.5 to 18.0)

15.0 (12.6 to 19.4)

15.7 (13.3 to 17.0)

Median units per week

18

20

18

19

Mean AUDIT C score

6.4 (6.1 to 6.8)

6.5 (6.2 to 6.9)

6.5 (6.2 to 6.8)

6.4 (5.8 to 7.1)

‘Higher risk’ drinkers

204 (86.1)

249 (87.4)

338 (86.7)

100 (87.7)

Median units on heaviest drinking occasion

17.5

16

17

17

  1. *1-14 units for women; 1–21 for men; **15-21 for women; 22 to 28 for men; *** 22–35 for women; 29 to 50 for men; **** >35 for women; >50 for men.