Table 3 Covariates associated with increased or reduced risk of a new co-morbidity overall during the first five years in simple logistic regression analysis

ESR (T0), mm/h

1.008, 1.022

<0.001

AUC DAS28 (24 months)

1.000, 1.016

<0.05

Ex-RA, yes/no

1.604, 6.574

<0.01

Corticosteroids ever ≤ T5

1.468, 2.969

<0.001

Biological treatment ever ≤ T5

0.389, 0.922

<0.05

Smoking, ever (T0)

0.990, 1.905

0.058

Age at disease onset, years

1.054, 1.083

<0.001

Sex male/female

1.118, 2.119

<0.01

Body mass index (T0)

0.990, 1.080

0.129

Co-morbidity at T0, number

1.248, 1.704

<0.001