Table 2 Sex-specific body mass index (BMI) and waist circumference of different age cohorts of study population across phases I, III, and V

Men

20–29

371

24.5 ± 4.3

27.2 ± 4.3

28.1 ± 4.3

< 0.001

82.5 ± 11.4

95.3 ± 10.9

98.4 ± 10.7

< 0.001

30–39

576

26.2 ± 3.9

27.6 ± 4.3

28.1 ± 4.4

< 0.001

88.1 ± 10.5

96.3 ± 10.5

98.4 ± 10.8

< 0.001

40–49

442

26.4 ± 3.5

27.4 ± 3.7

27.5 ± 4.2

< 0.001

90.3 ± 9.7

96.7 ± 9.3

97.7 ± 9.5

< 0.001

50–59

336

26.7 ± 3.6

27.1 ± 3.6

27.1 ± 3.8

0.001

92.2 ± 9.9

97.4 ± 9.3

98.1 ± 9.9

< 0.001

60–69

250

26.2 ± 3.8

26.4 ± 3.7

26.0 ± 3.9

0.005

92.0 ± 10.7

96.9 ± 10.3

96.1 ± 10.9

< 0.001

≥70

49

25.6 ± 3.6

25.8 ± 3.9

25.5 ± 4.5

0.395

90.4 ± 8.8

95.8 ± 9.6

95.5 ± 11.6

< 0.001

Total

2024

23.4 ± 5.4

25.9 ± 4.7

27.0 ± 4.5

< 0.001

88.8 ± 10.9

96.4 ± 10.10

97.8 ± 10.1

< 0.001

Women

20–29

618

24.4 ± 4.6

26.5 ± 4.7

28.0 ± 4.9

< 0.001

78.3 ± 11.3

82.1 ± 11.5

89.0 ± 10.9

< 0.001

30–39

816

27.1 ± 4.5

28.7 ± 4.8

29.9 ± 5.0

< 0.001

84.7 ± 11.0

88.5 ± 11.5

94.2 ± 11.4

< 0.001

40–49

706

29.2 ± 4.4

30.4 ± 4.6

31.3 ± 6.0

< 0.001

91.3 ± 11.1

94.8 ± 11.3

99.1 ± 11.5

< 0.001

50–59

496

29.4 ± 4.3

30.2 ± 4.6

30.9 ± 4.9

< 0.001

93.9 ± 10.5

97.3 ± 11.0

100.7 ± 11.2

< 0.001

60–69

215

28.4 ± 4.1

29.1 ± 4.3

29.3 ± 4.7

< 0.001

94.5 ± 10.2

96.7 ± 10.9

98.8 ± 11.5

< 0.001

≥70

20

27.3 ± 3.4

27.8 ± 3.1

27.2 ± 3.7

0.418

92.1 ± 9.7

93.6 ± 7.6

94.3 ± 9.7

0.545

Total

2871

25.0 ± 6.2

27.2 ± 5.6

28.6 ± 5.6

< 0.001

87.3 ± 12.4

90.8 ± 12.6

95.8 ± 12.1

< 0.001