Skip to main content
. 2011 Feb 24;20(1):50–61. doi: 10.1002/mpr.330

Table 2.

Sample description: sample size, abstention rates (%) and median/mean VOLUME (pure alcohol in grams per day) among participants [95% confidence interval (CI) for means and proportions]

Sample SOBER VOLUME (grams/day)
n Participants n Dropouts Percentage dropouts Percentage 95%CI Median Mean 95%CI
t 0 1771 0 5.1 4.2–6.2 6.7 11.9 11.1–12.7
t 1 1247 524 29.6 4.7 3.6–6.0 6.1 10.8 10.0–11.6
t 2 1064 707 39.9 5.5 4.3–7.1 5.6 11.6 9.9–13.3
t 3 855 916 51.7 4.0 2.9–5.5 5.9 11.0 10.0–12.1