SAN DIEGO—The number of hospitalizations due to indwelling urinary catheters is increasing at high rates in American hospitals, researchers reported at the American Urological Association annual meeting.

Using data from the National Inpatient Sample (NIS), researchers led by Janet Colli, MD, of the University of Tennessee Health Science Center in Memphis found that the number of hospitalizations related to indwelling urinary catheters increased from 11,742 in 2001 to 40,429 in 2010. The national costs associated with these hospitalizations rose from $175 million to $1.3 billion just for hospitalization related to the catheters alone. The cost in 2010 was $10.5 billion when the costs for secondary diseases associated with the hospital stays were included.

Results also showed that the length of stay from 2001 to 2010 decreased from 6.4 to 6.2 days and the in-hospital death rate decreased from 2.9% to 2.2%.

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The primary diagnosis for hospitalization was urinary tract infection (77% of cases in 2001 and 87% in 2010). The rate of septicemia associated with hospitalizations related to indwelling urinary catheters increased from 21% in 2001 to 40% in 2010.

The NIS contains data from approximately eight million hospital stays annually. The 2010 NIS contains all discharge data from 1,051 hospitals in 45 states, about a 20% stratified sample of U.S. community hospitals.