Table 2 Multivariate analysis

 Fifties

Reference

–

–

Reference

–

–

 Sixties

1.54

1.31–1.81

< 0.001

1.54

1.32–1.80

< 0.001

 Seventies

2.40

1.94–2.96

< 0.001

2.35

1.91–2.88

< 0.001

 Male

Reference

–

–

Reference

–

–

 Female

1.42

1.13–1.80

0.003

1.34

1.16–1.55

< 0.001

 < 25

Reference

–

–

Reference

–

–

 25≤

1.67

1.41–1.99

< 0.001

1.66

1.40–1.96

< 0.001

Weight change

 No change

Reference

–

–

 3 kg ≤ increase

1.26

1.06–1.50

0.008

1.27

1.08–1.50

0.005

 3 kg ≤ decrease

1.09

0.88–1.34

0.42

1.10

0.90–1.35

0.36

 No or occasional drinker

Reference

–

–

 1 ≤ consump. < 2

0.89

0.72–1.09

0.26

 2 ≤ consump. < 3

0.96

0.69–1.34

0.82

 3≤

0.48

0.23–1.01

0.054

 Never smoker

Reference

–

–

 Quitted

1.30

0.99–1.71

0.055

 Current smoker

1.14

0.91–1.44

0.26

Moderately active

Reference

–

–

 Sedentary

0.90

0.68–1.19

0.46

 Active

1.10

0.94–1.29

0.24

 20≤

Reference

–

–

Reference

–

–

 ≤ 19

1.34

1.21–1.59

< 0.001

1.34

1.21–1.59

< 0.001

Low back pain (points)

 0

Reference

–

–

Reference

–

–

 1≤

1.62

1.40–1.86

< 0.001

1.59

1.38–1.83

< 0.001

 1≤

Reference

–

–

 0.9 ≤ ABI < 1

0.90

0.71–1.12

0.34

 < 0.9

0.73

0.42–1.25

0.25

hsCRP

1.00

1.00–1.00

0.69

NTX

1.00

0.99–1.01

0.80

CTX

1.00

1.00–1.00

0.80