Annual Trend in Lumbar Puncture for Infants Younger Than 3 Months Hospitalized With Suspected Serious Bacterial Infection: A Nationwide Inpatient Database Study.

The proportion of lumbar punctures with hospitalized infants admitted with blood and urine culture tests decreased over the years, and this trend was greater in infants 29-89 days of age. The reduction in the proportion of lumbar punctures varied widely among the hospitals.