Mortality Rates for Pediatric Rheumatology Patients Lower Than Thought

by Rajshri on  January 31, 2010 at 9:26 AM Child Health News
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To determine the mortality rates, risks, and causes of death associated with pediatric rheumatic diseases in the U.S., the researchers examined the world's largest rheumatology registry, the Pediatric Rheumatology Disease Registry (PRDR), which includes 49,023 patients from 62 centers who were newly diagnosed between 1992 and 2001. Identifiers were matched with the Social Security Death Index censored for March 2005. Death certificates, referring physicians, and medical records confirmed deaths. Causes of death were derived by chart review or from the death certificate.

After excluding patients with malignancy, 110 deaths were identified among 48,885 patients in the PRDR registry. This number was significantly lower than the expected mortality from the age- and sex-adjusted U.S. population especially among 18,111 patients who were followed up for at least 9 years. The standardized mortality ratio was notably greater for systemic lupus erythematosus and dermatomyositis but not for systemic juvenile rheumatoid arthritis and was markedly less for pain syndromes. Most of the deceased with inflammatory disease died of their disease or disease complications, while many of the deceased with pain syndromes died of non-natural causes.

"One possible cause of the increased survival in the present study compared with previous studies may be the improved treatment that was introduced in the 1990s, said the lead author of the study Philip Hashkes, M.D., M.Sc. "Since the information in the PRDR was limited, we could not explore in depth for risk factors or early predictors of mortality. This and continued follow-up of this cohort for mortality trends should be investigated in future studies."



Source-Eurekalert
RAS
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