Table 1.
Age and drinking habits of bingers [B] and non-bingers [NB] in Experiments 1 and 2. In Experiment 2, participants were additionally divided into further two experimental groups, those receiving tryptophan-enriched [TRP+] and those receiving the control [CTR] diet.
| EXPERIMENT 1 | B (4 male, 6 female) |
NB (7 male, 7 female) |
|---|---|---|
|
Age (years) * |
18.0–25.0 (19.7 +/ −0.6) |
18.0–36.0 (24.6 +/− 1.4) |
|
Alcohol intake (units/week) |
32.9–109.5 (58.3 +/− 7.5) |
29.3–78.5 (45.2 +/− 3.5) |
|
Binge drinking score (derived from the AUQ) *** |
41.0–155.0 (79.6 +/− 13.6) |
6.5–18.7 (12.1 +/− 0.9) |
| EXPERIMENT 2 | B | NB | ||
|---|---|---|---|---|
|
| ||||
| TRP+ (4 male, 5 female) |
CTR (3 male, 7 female) |
TRP+ (6 male, 5 female) |
CTR (4 male, 7 female) |
|
|
Age (years) |
18.0–31.0 (21.3 +/− 1.3) |
18.0–32.0 (21.5 +/− 1.2) |
18.0–30.0 (21.3 +/− 1.1) |
18.0–25.0 (20.7 +/− 0.7) |
|
Alcohol intake (units/week) * |
24.2–101.1 (53.1 +/− 10.5) |
25.0–62.9†† (43.5 +/− 3.9) |
23.1–48.3 (31.8 +/− 2.5) |
21.9–46.4 (30.0 +/− 2.6) |
|
Binge drinking score (derived from the AUQ) *** |
39.5–94.0 (64.2 +/− 6.1) |
38.0–92.3 (57.0 +/− 5.4) |
7.2–18.5 (13.0 +/− 0.9) |
6.9–19.0 (12.4 +/− 1.1) |
Values represent range (mean +/− SEM in brackets)
Mann Whitney U tests:
*
p<0.05,
***
p<0.001 – B vs. NB group,
††
p<0.01 – B vs. NB in the CTR group