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Table 1 Characteristics of the participants by body mass index category

From: Gender differences in the association between adiposity and probable major depression: a cross-sectional study of 140,564 UK Biobank participants

    

Obese

 
 

Underweight

Normal-weight

Overweight

Overall

Class I

Class II

Class III

P-value

 

N = 654

N = 46,121

N = 59,932

N = 33,857

N = 24,458

N = 6,852

N = 2,547

 
 

N (%)

N (%)

N (%)

N (%)

N (%)

N (%)

N (%)

 

Probable major depression

       

No

508 (77.7)

36,622 (79.4)

47,641 (79.5)

25,648 (75.8)

18,912 (77.3)

5,022 (73.3)

1,714 (67.3)

<0.001

Yes

146 (22.3)

9,499 (20.6)

12,291 (20.5)

8,209 (24.3)

5,546 (22.7)

1,830 (26.7)

833 (32.7)

 

Sex

        

Women

517 (79.1)

29,748 (64.5)

27,380 (45.7)

17,448 (51.5)

11,634 (47.6)

4,089 (59.7)

1,725 (67.7)

<0.001

Men

137 (21.0)

16,373 (35.5)

32,552 (54.3)

16,409 (48.5)

12,824 (52.4)

2,763 (40.3)

822 (32.3)

 

Age (years)

        

39-49

170 (26.0)

12,200 (26.5)

12,958 (21.6)

7,119 (21.0)

4,970 (20.3)

1,478 (21.6)

671 (26.3)

<0.001

50-60

283 (43.3)

16,955 (36.8)

21,091 (35.2)

12,652 (37.4)

8,937 (36.5)

2,654 (38.7)

1,061 (41.7)

 

61-70

201 (30.7)

16,966 (36.8)

25,883 (43.22)

14,086 (41.6)

10,551 (43.1)

2,720 (39.7)

815 (32.0)

 

Townsend score quintile

        

1 (least deprived)

107 (16.4)

8,289 (18.0)

10,552 (17.6)

4,795 (14.2)

3,718 (15.2)

818 (11.9)

259 (10.2)

<0.001

2

108 (16.5)

9,580 (20.8)

12,377 (20.7)

6,115 (18.1)

4,632 (18.9)

1,126 (16.4)

357 (14.0)

 

3

111 (17.0)

9,563 (20.7)

12,795 (21.4)

6,734 (19.9)

4,956 (20.3)

1,314 (19.2)

464 (18.2)

 

4

160 (24.5)

10,541 (22.9)

13,232 (22.1)

7,828 (23.1)

5,578 (22.8)

1,646 (24.0)

604 (23.7)

 

5 (most deprived)

168 (25.7)

8,148 (17.7)

10,976 (18.3)

8,385 (24.8)

5,574 (22.8)

1,948 (28.4)

863 (33.9)

 

Employment status

        

In paid employment

339 (51.8)

27,597 (59.8)

34,155 (57.0)

18,733 (55.3)

13,651 (55.8)

3,704 (54.1)

1,378 (54.1)

<0.001

Retired

186 (28.4)

14,798 (32.1)

21,733 (36.3)

11,743 (34.7)

8,676 (35.5)

2,333 (34.1)

734 (28.8)

 

Look after home

56 (8.6)

1,796 (3.9)

1,350 (2.3)

813 (2.4)

530 (2.2)

190 (2.8)

93 (3.7)

 

Unemployed/unpaid

32 (4.9)

1,113 (2.4)

1,509 (2.5)

1,031 (3.1)

673 (2.8)

245 (3.6)

113 (4.4)

 

Not working (sick/disable)

39 (6.0)

681 (1.5)

1,041 (1.7)

1,431 (4.2)

854 (3.5)

355 (5.2)

222 (8.7)

<0.001

Only student status

2 (0.3)

136 (0.3)

144 (0.2)

106 (0.3)

74 (0.3)

25 (0.4)

7 (0.3)

 

Alcohol consumption

        

Daily

139 (21.3)

10,604 (23.0)

13,137 (21.9)

5,337 (15.8)

4,296 (17.6)

846 (12.4)

195 (7.7)

<0.001

3-4 times/week

127 (19.4)

11,283 (24.5)

14,456 (24.1)

6,528 (19.3)

5,122 (20.9)

1,077 (15.7)

329 (12.9)

 

1-2 times/week

123 (18.8)

11,419 (24.8)

15,411 (25.7)

8,677 (25.6)

6,398 (26.2)

1,720 (25.1)

559 (21.6)

 

1-3 times/month

71 (10.9)

4,775 (10.4)

6,345 (10.6)

4,643 (13.7)

3,152 (12.9)

1,065 (15.5)

426 (16.7)

 

Special occasions only

94 (14.4)

4,587 (10.0)

6,270 (10.5)

5,306 (15.7)

3,299 (13.5)

1,358 (19.8)

649 (25.5)

 

Never

100 (15.3)

3,453 (7.5)

4,313 (7.2)

3,366 (9.9)

2,191 (9.0)

786 (11.5)

389 (15.3)

 

Smoking status

        

Never

387 (59.2)

27,887 (60.5)

32,729 (54.6)

17,652 (52.1)

12,614 (51.6)

3,652 (53.3)

1,386 (54.4)

<0.001

Previous

151 (23.1)

13,590 (29.5)

21,537 (35.9)

13,154 (38.9)

9,575 (39.2)

2,638 (38.5)

941 (37.0)

 

Current

116 (17.7)

4,644 (10.1)

5,666 (9.5)

3,051 (9.0)

2,269 (9.3)

562 (8.2)

220 (8.6)

 

Ethnicity

        

White

591 (90.4)

42,911 (93.0)

55,312 (92.3)

30,838 (91.1)

22,382 (91.5)

6,191 (90.4)

2,265 (88.9)

<0.001

Mixed

10 (1.5)

377 (0.8)

381 (0.6)

235 (0.7)

161 (0.7)

47 (0.7)

27 (1.1)

 

Asian/Asian British

28 (4.3)

1,426 (3.1)

1,893 (3.2)

863 (2.6)

653 (2.6)

162 (2.4)

48 (1.9)

 

Black/Black British

3 (0.5)

651 (1.4)

1,521 (2.5)

1,451 (4.3)

926 (3.8)

355 (5.2)

170 (6.7)

 

Chinese

6 (0.9)

291 (0.6)

169 (0.3)

38 (0.1)

34 (0.1)

3 (0.0)

1 (0.0)

 

Other

16 (2.5)

465 (1.0)

656 (1.1)

432 (1.3)

302 (1.2)

94 (1.4)

36 (1.4)

 

Comorbidity

        

No

503 (76.9)

35,056 (76.0)

38,488 (64.2)

16,354 (48.3)

12,551 (51.3)

2,920 (42.6)

883 (32.7)

<0.001

Yes

151 (23.1)

11,065 (24.0)

21,444 (35.8)

17,503 (51.7)

11,907 (48.7)

3,932 (57.4)

1,664 (65.3)

 

Psychotropic medication

        

No

605 (92.5)

43,487 (94.3)

56,091 (93.6)

30,475 (90.0)

22,263 (91.0)

6,059 (88.4)

2,153 (84.5)

<0.001

Yes

49 (7.5)

2,634 (5.7)

3,841 (6.4)

3,382 (10.0)

2,195 (9.0)

793 (11.6)

394 (15.5)

 
  1. BMI: body mass index category (kg/m2); underweight (<18.5), normal-weight (18.5-24.9), overweight (25–29.9), obese (≥30), class I (30–34), class II (35–39), class III obese (>40), Townsend score, a measure of socio-economic status, p-value; χ2 test for categorical data & p-value for test of trend for ordinal data, Comorbidity (CVD, hypertension, diabetes, cancer).
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BMC Psychiatry

ISSN: 1471-244X

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