Table 4 Final model of correlates of the BASFI

Overall model

48.8

< 0.001

Age (at baseline visit, V0)

0.31

0.11-0.51

0.002

Depression (PHQ) (higher score = more depression, range 0-27)

1.20

0.58-1.82

< 0.001

Arthritis helplessness (higher score = more helpless behavior, range 5-25)

1.31

0.62-2.01

< 0.001

Passive coping (higher score = more passive coping, range 11-55)

0.69

0.24-1.13

0.003

BASRI (range 1.5-16)

1.28

0.61-1.95

< 0.001

Erythrocyte sedimentation rate

0.33

0.17-0.48

< 0.001