Skip to main content

Table 2 Baseline characteristics for participants completing follow-up (“completers”) compared to participants who did not (“attrition group”)

From: Mobile phone brief intervention applications for risky alcohol use among university students: a randomized controlled study

 

Completers (n = 1361)

Attrition group (n = 568)

p-valuesa

Gender: M (%)/F (%)

646(47.5)/715(52.5)

285(50.2)/283(49.8)

0.277

Age: mean (SD)

24.840 (4.931)

24.420 (4.493)

0.078

Measures of alcohol consumption: means (SD)

   

AUDIT score (scale 0–40)

10.444 (3.716)

11.169 (4.257)

< 0.001

Quantity (standard glasses/week)

8.812 (5.696)

10.333 (7.398)

< 0.001

Frequency (drinking occasions/week)

2.213 (1.139)

2.405 (1.253)

0.002

Binge occasions (no. per week)

0.950 (0.807)

1.109 (0.951)

< 0.001

Average eBACb per week

0.161 (0.133)

0.198 (0.187)

< 0.001

Peak eBACc within past month

1.240 (0.760)

1.319 (0.897)

0.063

Percent (%) over weekly recommended levels

27.4

35.2

0.001

  1. aP-values are based on student’s t-test for age, AUDIT, quantity, frequency, binge occasions, average eBAC, and peak eBAC; Pearson’s chi-square was used for gender and % over weekly recommended level.
  2. bEstimated average percentage BAC per week.
  3. cEstimated average peak percentage BAC during the past month.