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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

From: “Do as we say, not as we do?” the lifestyle behaviours of hospital doctors working in Ireland: a national cross-sectional study

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)  
  1. * P value <.05 ** P value <.01 *** P value ≤ .001 MU = Mean Units M = Monthly W = Weekly