Table 4.

Covariates associated with a new co-morbidity overall during the first five years

Co-variates	Odds ratio	CI 95 %	P value
ESR. T0, mm/h	1.008	1.001, 1.016	0.036
Corticosteroids ever ≤ T5	1.760	1.168, 2.654	<0.01
Smoking ever, T0	1.302	0.877, 1.933	0.190
Age at disease onset, years	1.072	1.055, 1.090	<0.001
Sex female/male	1.058	0.720, 1.554	0.775

Multiple logistic regression analysis (n = 623). ESR erythrocyte sedimentation rate, T0 baseline, T5 five years after baseline