Table 3.
Group differences in mean units of alcohol consumption as tested by one-way ANOVA and independent t-test and cross tabulation of demographic characteristics with patterns of alcohol consumption
| Characteristic | Mean units of alcohol consumed on a typical drinking occasion | Binge drinking on a typical drinking occasion | Frequency of alcohol consumption | Frequency of binge drinking | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MU | SD | Binges on a typical drinking occasion % (N) |
Does not binge on a typical occasion %(N) |
X2 | Never % (N) |
≤M % (N) |
2–4/M % (N) |
Multiple/W % (N) |
X2 | Never % (N) |
<M % (N) |
1–3/M %(N) |
1/W %(N) |
≥2/W %(N) |
X2 | |
| Age | ||||||||||||||||
| ≤ 30 | 4.9 | 3.3*** | 26.1 (71) | 73.9 (201) | 73.95*** | 10.3 (36) | 16.9 (59) | 46.7 (163) | 25.8 (90) | 171.5*** | 10.9 (34) | 43.6 (136) | 33.7 (105) | 9.3 (29) | 2.2 (7) | 117.1*** |
| 31–40 | 3.5 | 2.6 | 15.2 (59) | 84.8 (329) | 17.8 (94) | 18 (95) | 34 (180) | 30.1 (359) | 25.6 (111 | 45.6 (198 | 19.4 (84) | 6.2 (27) | 3 (13) | |||
| 41–50 | 2.7 | 1.7 | 5.4 (20) | 94.6 (347) | 8.7 (41) | 11.3 (53) | 29.6 (139) | 49.5 (232) | 32.1 (136) | 44.3 (188) | 15.3 (65) | 6.1 (26) | 1.9 (8) | |||
| > 50 | 2.7 | 1.4 | 6.6 (21) | 93.4 (295) | 6.9 (27) | 9.7 (38) | 21 (82) | 62.1 (243) | 38.6 (140) | 35.5 (129) | 13.2 (48) | 6.1 (22) | 6.3 (23) | |||
| Sex | ||||||||||||||||
| Male | 3.8 | 2.9*** | 19 (129) | 81 (550) | 46.75*** | 11.6 (102) | 12.4 (109) | 28.7 (253) | 46.9 (414) | 22.9*** | 21 (163) | 40.7 (316) | 22.7 (176) | 9.5 (74) | 5.9 (46) | 81.3*** |
| Female | 2.9 | 1.9 | 6.6 (44) | 93.4 (627) | 11 (95) | 15.9 (137) | 36.2 (313) | 36.6 (316) | 34.1 (261) | 43.7 (335) | 17.1 (131) | 4 (31) | 0.7 (5) | |||
| Work Grade | ||||||||||||||||
| Consultant | 2.8 | 1.7*** | 6.6 (51) | 93.4 (716) | 60.02*** | 6.6 (63) | 11.4 (108) | 26.5 (252) | 54.8 (521) | 162.1*** | 33.9 (299) | 41.2 (363) | 14.3 (126) | 6.4 (56) | 3.9 (34) | 66.3*** |
| Trainee | 4.2 | 3.0 | 20.9 (122) | 79.1 (463) | 16.9 (135) | 17.4 (139) | 39.4 (315) | 26.2 (209) | 19 (126) | 43.6 (289) | 27.3 (181) | 7.4 (49) | 2.6 (17) | |||
| Sex and Work Grade | ||||||||||||||||
| Male(C) | 3.09 | 1.91*** | 10.2 | 89.8 | 73.17*** | 7 (40) | 11.5(66) | 24(135) | 57(329) | 25(114) | 43(198) | 19 (88) | 7.1(33) | 6.1(28) | ||
| Male (T) | 5.45 | 3.77 | 37.8 | 62.2 | 20.1(62) | 14 (43) | 38(118) | 28 (85) | 86.2*** | 12.(27) | 40(87) | 32(70) | 11(25) | 3.7 (8) | 27.3*** | |
| Female (C) | 2.30 | 1.06*** | 1.3 | 98.7 | 24.92*** | 6.1 (23) | 11.2 (42) | 31(116) | 51(124) | 67.9*** | 48(147) | 40(122) | 8(25) | 3 (9) | 0 (0) | 59.7*** |
| Female (T) | 3.45 | 2.18 | 10.9 | 89.1 | 14.7 (72 | 19.4 (95) | 40(197) | 25(316 | 24 (88) | 47(173) | 24(90) | 3(13) | .8 (3) | |||
| Marital Status | ||||||||||||||||
| Married or cohabiting | 3.03 | 1.99*** | 8.9 (83) | 91.1 (853) | 50.79*** | 12.3 (150) | 13.4 (164) | 28.1 (344) | 45.8 (560) | 53.9*** | 30.3 (284) | 44 (412) | 16.8 (157) | 5.6 (52) | 3.2 (30) | 37.9*** |
| Single | 4.44 | 3.24 | 23.9 (83) | 76.1 (265) | 9.4 (42) | 15.3 (68) | 44.9 (200) | 30.3 (135) | 18.7 (65) | 42.2 (147) | 29.3 (102) | 7.2 (25) | 2.3 (8) | |||
| Divorced or separated | 2.91 | 2.39 | 11.6 (5) | 88.4 (38) | 9.6 (5) | 19.2 (1`0) | 32.7 (17) | 38.5 (20) | 37.2 (16) | 32.6 (14) | 23.3 (10) | 4.7 (2) | 2.3 (1) | |||
| Nationality | ||||||||||||||||
| Irish | 3.5 | 2.5*** | 13.6 (166) | 86.4(1054) | 7.36*** | 7.3 (110) | 13.4 (201) | 34.2 (515) | 44.7 (673) | 191.6*** | 25.9 (360) | 42.5 (590) | 20.6 (286) | 7.3 (101) | 3.5 (49) | 24.3*** |
| Non-Irish | 2.5 | 1.5 | 5.3 (7) | 94.7 (125) | 36.1 (88) | 18.9 (46) | 21.3 (52) | 23.4 (57) | 41.9 (65) | 40 (60) | 13.5 (21) | 2.6 (4) | 1.3 (2) | |||
| Specialty | ||||||||||||||||
| Anaesthetics | 3.6 | 2.9*** | 13.8 (27) | 86.2 (168) | 21.21** | 9.3 (23) | 15.4 (38) | 31.6 (78) | 43.7 (108) | 47.2* | 28.1 (63) | 41.1 (92) | 19.2 (43) | 7.1 (16) | 4.5 (10) | 53.1 ns |
| Emergency | 4.1 | 2.1 | 24.2 (16) | 75.8 (50) | 10.6 (9) | 15.3 (13) | 32.9 (28) | 41.2 (35) | 9.2 (7) | 44.7 (34) | 27.6 (21) | 11.8 (9) | 6.6 (5) | |||
| Medicine | 3.2 | 2.3 | 10.4 (34) | 89.6 (293) | 12.4 (55) | 15.6 (69) | 28.9 (128) | 42.4 (188) | 29.1 (112) | 44.7 (172) | 17.4 (67) | 5.7 (22) | 2.6 (10) | |||
| Obstetrics & Gynaecology | 3.5 | 2.3 | 13.8 (12) | 86.2 (75) | 8.3 (9) | 9.3 (10) | 38.9 (42) | 42.6 (46) | 25.5 (25) | 42.9 (42) | 23.5 (23) | 5.1 (5) | 3.1 (3) | |||
| Ophthalmology | 3.1 | 1.9 | 11.5 (3) | 88.5 (23) | 17.1 (6) | 0 (0) | 40 (14) | 42.9 (14) | 24.1 (7) | 37.9 (11) | 24.1 (7) | 10.3 (3) | 3.4 (1) | |||
| Paediatrics | 3.6 | 2.8 | 13.5 (17) | 86.5 (109) | 9.1 (15) | 10.3 (17) | 40.6 (67) | 40 (6.6) | 26 (39) | 39.3 (59) | 25.3 (38) | 8 (12) | 0.7 (1) | |||
| Pathology | 2.9 | 1.8 | 6.7 (8) | 93.3 (112) | 6.5 (9) | 14.4 (20) | 27.3 (38) | 51.8 (72) | 36.9 (48) | 37.7 (49) | 17.7 (23) | 4.6 (6) | 3.1 (4) | |||
| Psychiatry | 2.9 | 1.8 | 9.8 (21) | 90.2 (193) | 16.7 (47) | 16 (45) | 28.1 (79) | 38.8 (109) | 33 (77) | 41.2 (96) | 14.2 (33) | 6.9 (16) | 4.3 (10) | |||
| Surgery | 3.9 | 3 | 18.6 (35) | 81.4 (153) | 10.3 (25) | 14 (34) | 37.4 (91) | 37.4 (91) | 20.8 (45) | 44.4 (96) | 24.1 (52) | 7.4 (16) | 3.2 (7) | |||
| Mean Hours Worked/Week | ||||||||||||||||
| under40 | 2.6 | 1.6*** | 92.9 (78) | 7.1 (6) | 5.31 | 13.8 (17) | 16.3 (20) | 22 (27) | 46.3 (57) | 18.8* | 44.2 (46) | 30.8 (32) | 13.5 (14) | 5.8 (6) | 5.8 (6) | 25.5** |
| 40–80 | 3.4 | 2.5 | 87.3 (977) | 12.7 (142) | 11.1 (158) | 13.4 (190) | 32.8 (466) | 42.4 (603) | 26.8 (338) | 42 (529) | 20.4 (257) | 7.1 (89) | 3.3 (42) | |||
| > 80 | 4.0 | 2.9 | 81.4 (79) | 18.6 (18) | 9.2 (12) | 16.9 (22) | 41.5 (54) | 32.3 (42) | 20.3 (24) | 50 (59) | 22 (26) | 6.8 (8) | 0.8 (1) | |||
| Total | 3.39 | 2.5 | 12.8 (173) | 87.2 (1176) | 11.3 (198) | 14.1 (247) | 32.4 (567) | 41.7 (730) | 27.5 (425) | 42.2 (652) | 19.9 (307) | 6.8 (105) | 3.3 (51) | |||
* P value <.05 ** P value <.01 *** P value ≤ .001 MU = Mean Units M = Monthly W = Weekly