Introduction Only one study has analysed the association between exercise and
development of rheumatoid arthritis (RA), showing no association. Aim of this paper was to …

In epidemiological studies, non-participation may result in selection bias (1) and information
on who is likely to participate is therefore essential for interpretation. It has been observed …

Objectives. Smokers have an increased incidence of rheumatoid factor (RF) and rheumatoid
arthritis (RA) and one report has also indicated that smoking may also adversely influence …

Objective To investigate possible associations between socioeconomic status, occupation,
and hospitalization for rheumatoid arthritis (RA). Methods A nationwide database was …

Among the established risk factors associated with developing rheumatoid arthritis (RA),
smoking remains one of the leading environmental exposures associated with disease …

Objective The association between passive smoking exposure in childhood or in adulthood,
and the risk of rheumatoid arthritis (RA) has been incompletely investigated. We aimed to …

To evaluate the effects of alcohol consumption on disease activity in rheumatoid arthritis.
EMBASE, Pubmed, the Cochrane Library, and Web of Science were searched until July 29 …

S ir, We read with great interest the paper by Masdottir et al.[1] reporting that women with
rheumatoid arthritis (RA) and considerable exposure to cigarette smoke were more likely to …

Objective To examine the association between alcohol consumption and markers of
inflammation in preclinical rheumatoid arthritis (RA). Methods We studied 174 incident RA …

This study aims to study the association of smoking with the development of systemic lupus
erythematosus (SLE). The study included 223 SLE patients (92% women, mean age 47 …