Table 2 Questionnaire response rates by sex-specific cognition score quintiles

Cognition at 7

Lowest quintile

84

50, 93

1,111

48.2

1.00*

84

50, 93

1,006

52.9

1.00*

2nd lowest

98

94, 102

1,046

54.0

1.26

(1.07 to 1.50)

98

94, 103

1,058

60.3

1.35

(1.14 to 1.61)

Middle

106

103, 110

1,128

59.3

1.57

(1.33 to 1.86)

107

104, 111

1,023

72.7

2.38

(1.97 to 2.87)

2nd highest

115

111, 120

1,126

67.4

2.23

(1.87 to 2.65)

116

112, 121

1,099

73.6

2.49

(2.06 to 3.00)

Highest quintile

129

121, 153

1,173

70.3

2.55

(2.14 to 3.05)

130

122, 166

1,080

78.4

3.24

(2.66 to 3.95)

Missing

158

50.0

1.08

(0.77 to 1.50)

274

66.1

1.73

(1.31 to 2.29)

Cognition at 9

Lowest quintile

85

50, 95

1,047

45.7

1.00*

89

60, 98

1,002

54.3

1.00*

2nd lowest

102

96, 106

998

57.2

1.59

(1.34 to 1.90)

104

99, 107

921

62.4

1.40

(1.17 to 1.68)

Middle

111

107, 115

1,207

60.5

1.82

(1.54 to 2.16)

111

108, 115

1,078

68.9

1.87

(1.56 to 2.24)

2nd highest

119

116, 124

1,049

64.9

2.20

(1.84 to 2.63)

119

116, 123

1,047

74.5

2.46

(2.03 to 2.98)

Highest quintile

135

125, 174

1,139

72.2

3.09

(2.57 to 3.71)

133

124, 176

1,110

79.1

3.19

(2.61 to 3.88)

Missing

302

49.7

1.17

(0.91 to 1.52)

382

60.5

1.29

(1.01 to 1.64)

Cognition at 11

Lowest quintile

78

54, 86

920

45.5

1.00*

80

47, 87

843

52.4

1.00*

2nd lowest

91

86, 95

903

54.6

1.44

(1.19 to 1.73)

92

88, 97

890

63.3

1.56

(1.29 to 1.89)

Middle

99

96, 103

934

63.6

2.09

(1.73 to 2.52)

101

97, 104

845

74.1

2.59

(2.10 to 3.20)

2nd highest

108

104, 113

931

67.2

2.45

(2.02 to 2.98)

109

105, 114

881

74.6

2.66

(2.16 to 3.28)

Highest quintile

121

113, 144

922

71.4

2.98

(2.44 to 3.64)

121

114, 146

874

78.6

3.33

(2.68 to 4.15)

Missing

1,132

56.7

1.57

(1.32 to 1.87)

1,207

64.3

1.63

(1.37 to 1.95)