XXXX , @entity1187 and @entity385 in the Spanish National Discharge Database.

@entity1 @entity1187 @entity455 @entity712 @entity64 @entity5 @entity1151 @entity1576 @entity715 @entity385
BACKGROUND: Venous and arterial @entity715 share a number of pathogenic mechanisms, but the burden of @entity1151 ( @entity1151 ) has not been consistently compared with that in other @entity455 . METHODS: We used the Spanish National Discharge Database to compare the frequency, clinical characteristics and mortality rate of all @entity1 with @entity1151 , @entity1187 ( @entity1187 ) or @entity385 admitted from 2001 to 2010. @entity1 were classified as having primary diagnosis (the process leading to hospital admission) or secondary diagnosis (it appeared during hospital stay for other reasons) RESULTS: During the study period, 31,949,739 @entity1 were discharged. Of these, 165,229 (0.52%) were diagnosed with @entity1151 , 562,837 (1.76%) with @entity1187 and 495,427 (1.55%) with @entity385 . Overall, 31% of @entity1 with @entity1151 , 8.4% with @entity1187 and 13% with @entity385 had secondary diagnoses. The most common reasons for admission in @entity1 with secondary @entity1151 were: @entity5 (21%), @entity1576 (11%), @entity712 (6.4%) and @entity64 (5.5%). Mean hospital stay was: 14  13days in @entity1151 @entity1 , 9.7  9.7 in those with @entity1187 and 13  14days in those with @entity64 . In-hospital mortality rate was: 10.5%, 10.1% and 12.3% respectively in @entity1 with primary diagnosis, and 36%, 34% and 29% in those with secondary diagnosis. CONCLUSIONS: @entity1 hospitalized with @entity1151 were 3-4 times less frequent than those with @entity1187 or @entity64 , but had a higher mortality. One in every 3 @entity1 with @entity1151 (but only one in every 10 with @entity1187 or @entity64 ) had secondary diagnosis, and these @entity1 had the highest mortality.
