According to a new study, pregnant women who have rheumatoid arthritis (RA) have a higher risk of having underweight babies, developing high blood pressure, or needing a cesarean section than women who do not have the condition. For the study, researchers compared 1,912 new mothers with RA with 9,560 new mothers without it. They found that the women with RA were 47 percent more likely to have a low-birth-weight baby and 19 percent more likely to require a C-section. The RA sufferers also had...