Table 2 Multivariate relative risk of incident Type 2 diabetes in HUNT 2–3 cohort, by sex

Demographic factors

 Age

  20–34

Ref

Ref

Ref

Ref

Ref

Ref

  35–44

2.42

1.57, 3.74

2.97

1.90, 4.63

2.68

1.97, 3.65

  45–54

3.53

2.33, 5.36

4.45

2.90, 6.83

3.82

2.84, 5.14

  55–64

4.23

2.76, 6.48

5.68

3.68, 8.77

4.72

3.50, 6.37

  ≥ 65

2.97

1.88, 4.70

5.41

3.43, 8.52

3.88

2.83, 5.32

  Education (any post-secondary)

1.20

0.96, 1.50

1.19

1.00, 1.44

1.20

1.04, 1.38

Metabolic factors

 Central obesity^a

4.77

3.64, 6.25

3.31

2.75, 3.99

3.59

3.08, 4.18

 Hypertension^b

1.67

1.37, 2.04

1.49

1.22, 1.81

1.54

1.34, 1.77

 Triglycerides

1.98

1.63, 2.41

1.79

1.47, 2.19

1.77

1.55, 2.03

 HDL cholesterol

2.13

1.78, 2.54

1.84

1.57, 2.16

1.86

1.66, 2.10

 Plasma glucose

3.68

2.40, 4.03

5.58

3.31, 6.90

4.05

3.55, 4.62

Behavioural factors

 Smoking

  Never

Ref

Ref

Ref

Ref

Ref

Ref

  Former (daily)

0.87

0.71, 1.07

1.43

1.18, 1.72

1.13

0.99, 1.29

  Current (daily)

0.99

0.82, 1.22

1.50

1.22, 1.85

1.21

1.05, 1.39

  Physical inactivity^c

1.05

0.88, 1.24

1.38

1.18, 1.61

1.23

1.08, 1.36

Psychological factors

 Depression only

1.14

0.63, 2.08

1.94

1.34, 2.83

1.37

1.01, 1.87

 Anxiety only

1.24

0.92, 1.68

1.16

0.62, 2.16

1.16

0.76, 1.80

 Concurrent Dep–anx

0.93

0.56, 1.55

1.50

1.13, 2.00

1.36

1.10, 1.68