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Table 1 Characteristics of study participants by seven identified psychosocial patterns, among 336,493 participants free of dementia at baseline from the UK Biobank

From: Association of psychosocial state with subsequent risk of dementia: a prospective cohort study based on the UK Biobank

Characteristics

No. (%)

      

Good state

Fair state

Short education

Living alone

Mildly poor psychological state

Moderately poor psychological state

Extremely poor psychological state

No. of participants

136,060

56,765

81,767

47,987

28,402

8,688

6,824

Follow up, y, median (IQR)

12.70 (1.38)

12.70 (1.39)

12.80 (1.36)

12.70 (1.41)

12.70 (1.42)

12.70 (1.42)

12.70 (1.46)

Age at baseline, y, median (IQR)

55.00 (13.00)

53.00 (12.00)

61.00 (10.00)

61.00 (11.00)

58.00 (13.00)

54.00 (13.00)

53.00 (12.00)

Sex

       

 Female

66,319 (48.74)

31,167 (54.91)

40,607 (49.66)

28,290 (58.95)

17,051 (60.03)

4,948 (56.95)

3,905 (57.22)

 Male

69,741 (51.26)

25,598 (45.09)

41,160 (50.34)

19,697 (41.05)

11,351 (39.97)

3,740 (43.05)

2,919 (42.78)

Ethnicity a

       

 Non-Caucasian

22,728 (16.70)

9,710 (17.11)

9,463 (11.57)

8,279 (17.25)

4,934 (17.37)

2,285 (26.30)

1,530 (22.42)

 Caucasian

113,332 (83.30)

47,055 (82.89)

72,304 (88.43)

39,708 (82.75)

23,468 (82.63)

6,403 (73.70)

5,294 (77.58)

Smoking status

       

 Never

82,666 (60.76)

31,720 (55.88)

40,732 (49.81)

24,626 (51.32)

12,247 (43.12)

4,506 (51.86)

2,984 (43.73)

 Previous

44,829 (32.95)

19,374 (34.13)

32,695 (39.99)

17,032 (35.49)

10,139 (35.70)

2,635 (30.33)

2,032 (29.78)

 Current

8,421 (6.19)

5,605 (9.87)

8,107 (9.91)

6,189 (12.90)

5,943 (20.92)

1,531 (17.62)

1,785 (26.16)

 Unknown

144 (0.11)

66 (0.12)

233 (0.28)

140 (0.29)

73 (0.26)

16 (0.18)

23 (0.34)

Drinking status

       

 Never

3,151 (2.32)

1,313 (2.31)

3,449 (4.22)

2,377 (4.95)

1,382 (4.87)

546 (6.28)

463 (6.78)

 Previous

2,644 (1.94)

1,506 (2.65)

2,704 (3.31)

2,232 (4.65)

1,942 (6.84)

512 (5.89)

711 (10.42)

 Current

130,245 (95.73)

53,938 (95.02)

75,595 (92.45)

43,354 (90.35)

25,050 (88.20)

7,617 (87.67)

5,633 (82.55)

 Unknown

20 (0.01)

8 (0.01)

19 (0.02)

24 (0.05)

28 (0.10)

13 (0.15)

17 (0.25)

Hours of sleep b

       

 Normal

109,417 (80.42)

40,336 (71.06)

62,894 (76.92)

34,782 (72.48)

17,498 (61.61)

5,014 (57.71)

3,149 (46.15)

 Long or short sleep

26,643 (19.58)

16,429 (28.94)

18,873 (23.08)

13,205 (27.52)

10,904 (38.39)

3,674 (42.29)

3,675 (53.85)

Physical activity c

       

 Low

21,510 (15.81)

11,166 (19.67)

10,923 (13.36)

6,612 (13.78)

5,277 (18.58)

1,846 (21.25)

1,904 (27.90)

 Moderate

52,308 (38.44)

21,229 (37.40)

25,546 (31.24)

16,642 (34.68)

9,179 (32.32)

2,733 (31.46)

1,936 (28.37)

 High

47,927 (35.22)

17,499 (30.83)

30,934 (37.83)

17,388 (36.23)

8,715 (30.68)

2,572 (29.60)

1,633 (23.93)

 Unknown

14,315 (10.52)

6,871 (12.10)

14,364 (17.57)

7,345 (15.31)

5,231 (18.42)

1,537 (17.69)

1,351 (19.80)

Body mass index, kg/m2

       

 < 25

51,847 (38.11)

19,576 (34.49)

22,487 (27.50)

15,996 (33.33)

8,090 (28.48)

2,424 (27.90)

1,769 (25.92)

 25–30

59,030 (43.39)

23,559 (41.50)

37,568 (45.95)

19,361 (40.35)

10,907 (38.40)

3,313 (38.13)

2,387 (34.98)

 ≥ 30

24,785 (18.22)

13,428 (23.66)

21,415 (26.19)

12,362 (25.76)

9,191 (32.36)

2,870 (33.03)

2,588 (37.92)

 Unknown

398 (0.29)

202 (0.36)

297 (0.36)

268 (0.56)

214 (0.75)

81 (0.93)

80 (1.17)

Charlson comorbidity index

       

 0

112,095 (82.39)

45,069 (79.40)

63,561 (77.73)

36,740 (76.56)

19,590 (68.97)

6,283 (72.32)

4,446 (65.15)

 ≥ 1

23,965 (17.61)

11,696 (20.60)

18,206 (22.27)

11,247 (23.44)

8,812 (31.03)

2,405 (27.68)

2,378 (34.85)

History of hypertension

       

 No

123,935 (91.09)

51,183 (90.17)

67,868 (83.00)

40,285 (83.95)

22,995 (80.96)

7,293 (83.94)

5,543 (81.23)

 Yes

12,125 (8.91)

5,582 (9.83)

13,899 (17.00)

7,702 (16.05)

5,407 (19.04)

1,395 (16.06)

1,281 (18.77)

History of hyperlipidemia

       

 No

132,547 (97.42)

55,300 (97.42)

78,178 (95.61)

46,040 (95.94)

27,027 (95.16)

8,321 (95.78)

6,487 (95.06)

 Yes

3,513 (2.58)

1,465 (2.58)

3,589 (4.39)

1,947 (4.06)

1,375 (4.84)

367 (4.22)

337 (4.94)

Grip strength

       

 Normal

118,539 (87.12)

47,747 (84.11)

63,916 (78.17)

35,899 (74.81)

19,894 (70.04)

6,262 (72.08)

4,481 (65.67)

 Low

16,711 (12.28)

8,611 (15.17)

17,162 (20.99)

11,548 (24.06)

8,073 (28.42)

2,290 (26.36)

2,203 (32.28)

 Unknown

810 (0.60)

407 (0.72)

689 (0.84)

540 (1.13)

435 (1.53)

136 (1.57)

140 (2.05)

Hearing loss state d

       

 No

103,608 (76.15)

40,316 (71.02)

57,663 (70.52)

34,968 (72.87)

18,462 (65.00)

5,788 (66.62)

4,187 (61.36)

 Yes

29,011 (21.32)

14,375 (25.32)

21,607 (26.43)

11,493 (23.95)

8,620 (30.35)

2,502 (28.80)

2,282 (33.44)

 Unknown

3,441 (2.53)

2,074 (3.65)

2,497 (3.05)

1,526 (3.18)

1,320 (4.65)

398 (4.58)

355 (5.20)

  1. a Ethnicity was collected via a self-report questionnaire, Caucasian ancestry refers to a genetic ethnic group, involving individuals who self-identified as White British and have very similar genetic ancestry based on a principal components analysis of the genotypes
  2. b Hours of sleep were categorized as normal (7–9 h), long or short sleep (> 9 h or < 7 h), and unknown
  3. c Physical activity was evaluated by the International Physical Activity Questionnaire score summarizing the metabolic equivalent task (MET)-weighted time spent in vigorous, moderate, and walking activity
  4. d Hearing loss state was collected via a self-report question: ‘Do you have any difficulty with your hearing?’ and was categorized as without hearing loss (‘no’ responses), with hearing loss (‘yes’ or ‘I am completely deaf’ responses), and unknown