Table 1 Demographic characteristics of study populations

Study group

40–49

618 (34.8)

1156 (65.2)

1774 (27.3)

71.7 ± 10.3

59.3 ± 9.3^†

24.9 ± 3.3

24.1 ± 2.6^†

50–59

666 (40.2)

991 (59.8)

1657 (25.5)

70.1 ± 10.4

60.5 ± 9.4^†

25.0 ± 3.2

25.0 ± 3.5^‡

60–69

882 (52.7)

793 (47.3)

1675 (25.8)

65.7 ± 10.2

58.9 ± 9.6^†

24.2 ± 3.2

25.3 ± 3.8^†

70–79

482 (44.9)

592 (55.1)

1074 (16.5)

63.2 ± 9.9

57.2 ± 9.9^†

23.8 ± 3.3

25.3 ± 4.0^†

≥80

144 (46.0)

169 (54.0)

313 (4.8)

61.3 ± 10.6

54.0 ± 10.4^†

23.6 ± 3.3

24.3 ± 4.0^‡

Total

2792 (43.0)

3701 (57.0)

6493 (100)

67.4 ± 10.8

58.9 ± 9.7^†

24.4 ± 3.3

24.8 ± 3.7^†

Reference group

20–29

96 (57.8)

70 (42.3)

166 (100)

62.4 ± 12.0

49.7 ± 4.8^†

21.8 ± 2.7

19.3 ± 1.4^†