[Spanish short-stay-units: results according to department designated to manage the unit]

To compare the efficiency of short-stay units (SSUs) managed by different departments within hospitals.

Cross-sectional study in 40 hospitals with SSUs. From June 1 to December 31, 2012,we gathered data on clinical caseloads and management. Variables directly related to efficiency were mean length of stay, bed rotation index, and weekend discharge rate.

Forty SSUs were studied; 25 (62.5%) were managed by the hospital's emergency department (ED), 9 (22.5%) were managed by the internal medicine department (IMD), 5 (12.5%) were independent, and 1 was jointly managed by the hospital's ED and the IMD. A total of 45 140 patients were discharged from the SSUs. The most common diagnoses were exacerbation of chronic heart or respiratory disease, urinary tract infection, and respiratory infection. Age was the only variable that was related to the hospital department designated to manage these SSUs. The mean ages by management type were as follows: independent SSUs (75.6 years) vs ED-managed SSUs (67.2 years) vs IMD-managed SSUs (57.8 years) (P=.02). Group-by-group comparisons showed that the mean length of stay was shorter in ED-managed SSUs than in IMD-managed units (2.65 vs 3.73 respectively; P=.047), and overall mortality was lower in IMD-managed SSUs than in ED-managed SSUs (0.64% vs 3%; P=.033). However, unforeseen mortality (after excluding patients under palliative care or judged to be in the final hours of life) did not differ significantly between groups.

We did not detect important differences between SSUs managed by different departments in the hospitals in this series. However, mean length of stay was found to be shorter in ED-managed SSUs than in IMD-managed units.