In asthmatic patients with concurrent rheumatoid arthritis (RA), their asthma may represent a distinctive subgroup that is more severe and carries a poorer prognosis, according to a recent study. Researchers used data from the National Inpatient Sample (NIS) for the period of 2012–2014; ICD 9 code was used to identify the diagnosis. The primary outcome was in-hospital mortality, the secondary outcome was total asthma exacerbation hospitalizations, length of stay, and total hospital charges. They found that compared to those without RA, RA was associated with increased hospitalizations for asthma exacerbation, more respiratory and systemic comorbidities, increased in-hospital mortality, length of stay, and total hospital charges.