Table 4

Comparison of enforcement trajectory groups based on deans' and campus security chiefs' reports of enforcement levels over time.

Deans' Enforcement Trajectory Groups

Lower

(n = 6)

Mean (SD)

Higher

(n = 5)

Mean (SD)

F

p-value

Deans' 1999 score

75.3 (4.0)

89.5 (7.8)

15.2

0.004

Deans' 2001 score

67.1 (5.8)

85.5 (10.8)

13.3

0.005

Deans' average score across years

71.2 (2.7)

87.5 (3.8)

70.9

<0.001

Change in past-30-days drinking rate

-4.4 (7.0)

-10.2 (11.8)

1.0

0.342

Change in past-2-weeks heavy episodic drinking rate

2.8 (10.1)

-18.5 (16.0)

7.3

0.025

Change in usual heavy episodic drinking rate among past-30-days drinkers

-13.7 (13.1)

-19.9 (10.1)

0.7

0.416

Change in past-2-weeks heavy episodic drinking rate among those reporting no heavy drinking in high school

-1.8 (38.1)

-22.7 (26.4)

1.1

0.318

Campus Security Chiefs' Enforcement Trajectory Groups

Lower

(n = 5)

Mean (SD)

Higher

(n = 2)

Mean (SD)

Increasing

(n = 2)

Mean (SD)

F

p-value

Security chiefs' 1999 score

77.5 (5.7)

94.6 (0.9)

67.7 (8.7)

11.0

0.010

Security chiefs' 2001 score

74.0 (5.9)

90.0 (5.5)

86.3 (6.0)

6.7

0.030

Security chiefs' average score across years

75.8 (5.5)

92.3 (2.3)

77.0 (7.3)

6.8

0.029

Change in past-30-days drinking rate

-10.0 (12.8)

-3.7 (5.1)

-0.4 (6.4)

0.6

0.565

Change in past-2-weeks heavy episodic drinking rate

-6.5 (22.3)

-2.5 (22.4)

-3.9 (5.1)

0.0

0.969

Change in usual heavy episodic drinking rate among past-30-days drinkers

-16.9 (14.7)

-16.1 (18.3)

-17.8 (12.7)

0.1

0.994

Change in past-2-weeks heavy episodic drinking rate among those reporting no heavy drinking in high school

-18.0 (36.6)

10.3 (22.0)

14.2 (6.7)

0.9

0.439

Harris et al. Substance Abuse Treatment, Prevention, and Policy 2010 5:18   doi:10.1186/1747-597X-5-18