Fever in pediatric primary care: occurrence, management, and outcomes.

OBJECTIVE: To describe the epidemiology, management, and outcomes of children with fever in pediatric primary care practice.

PATIENTS: A cohort of 20 585 children 3 to 36 months of age cared for in 11 pediatric offices of a health maintenance organization between 1991 and 1994.

METHODS: Using automated medical records we identified all office visits with temperatures >/=38 degrees C for a random sample of 5000 children, and analyzed diagnoses conferred, laboratory tests performed, and antibiotics prescribed. We also determined the frequency of in-person and telephone follow-up after initial visits for fever. Finally, we reviewed hospital claims data for the entire cohort of 20 585 to identify cases of meningitis, meningococcal sepsis, and death from infection.

RESULTS: Among 3819 initial visits of an illness episode, 41% of children had no diagnosed bacterial or specific viral source. Of these, 13% with a temperature of 38 degrees C to 39 degrees C and 36% with a temperature of >/=39 degrees C received laboratory testing. Almost half (43%) received some documented follow-up care in the subsequent 7 days. Among the 26 970 child-years of observation in the entire cohort, 15 children (56 per 100 000 child-years) were treated for bacterial meningitis or meningococcal sepsis. Five had an office visit for fever in the week before hospitalization, but only 1 had documented fever >/=39 degrees C and received neither laboratory testing for occult bacteremia nor treatment with an antibiotic.

CONCLUSION: The majority of febrile children in ambulatory settings were diagnosed with a bacterial infection and treated with an antibiotic. Of highly febrile children without a source, 36% received laboratory testing consistent with published expert recommendations, and short-term follow-up was common. Meningitis or death after an office visit for fever without a source was predictably rare. These data suggest that increased testing and/or treatment of febrile children beyond the rates observed here are unlikely to affect population rates of meningitis substantially.