Table 1 Socio-demographics, anthropometry and disease status within each BMI group (n = 398,984)

% Male

20.9

36.3

55.2

54.1

43.2

34.3

Age (n)

2026

132,372

171,030

67,903

18,653

7000

 40–49

27.7

28.1

22.6

21.6

23.1

26.9

 50–59

36.6

33.7

32.4

32.2

36.0

39.2

 60–70

35.7

38.2

45.1

44.3

40.9

33.9

Tanita body fat % (mean ± SD)

18.6 ± 5.4

26.7 ± 7.1

30.8 ± 7.3

36.0 ± 7.2

41.3 ± 6.8

46.3 ± 6.2

Waist circumference groups (MALES) (n)

424

48,049

94,322

36,730

8060

2407

 <94 cm (low risk)

99.8

90.1

35.6

1.8

0.0

0.1

 94–102 cm (high risk)

0.2

9.7

49.9

24.8

1.3

0.1

 >102 cm (very high risk)

0.0

0.2

14.5

73.4

98.7

99.8

Waist circumference groups (FEMALES) (n)

1602

84,302

76,688

31,151

10,590

4581

 <80 cm (low risk)

99.5

78.6

20.2

0.8

0.0

0.0

 80–88 cm (high risk)

0.2

19.4

48.7

14.2

1.1

0.1

 >88 cm (very high risk)

0.2

2.0

31.1

85.0

98.8

99.9

Cardio-metabolic disease

35.8

37.2

56.1

71.8

81.0

86.8

Sleep apnoea (n)

0.0 (1)

0.1 (76)

0.2 (345)

0.6 (404)

1.4 (267)

2.7 (188)

Townsend deprivation quintile (n)

2023

132,214

170,825

67,811

18,622

6986

 1 (least deprived)

17.4

22.0

21.4

18.6

15.0

12.0

 2

17.3

20.9

21.0

19.3

17.2

14.0

 3

18.1

20.2

20.5

19.8

18.9

18.0

 4

20.8

19.6

19.7

20.7

21.9

22.4

 5 (most deprived)

26.4

17.3

17.4

21.7

27.0

33.7

Ethnicity (n)

2016

132,020

170,546

67,672

18,594

6970

 White/British

93.5

95.3

95.0

94.5

94.2

93.3

 Mixed

1.0

0.6

0.5

0.6

0.6

0.8

 Asian

2.3

1.8

1.9

1.7

1.3

1.1

 Black African

0.4

0.8

1.5

2.2

2.9

3.7

 Chinese

1.2

0.6

0.2

0.1

0.0

0.0

 Other

1.5

0.8

0.8

0.9

1.0

1.0