Risk of upper gastrointestinal complications associated with cyclooxygenase-2 selective and nonselective nonsteroidal antiinflammatory drugs.

Study Objective: To estimate the risk of upper gastrointestinal complications associated with use of cyclooxygenase-2 (COX-2) selective (celecoxib and rofecoxib) and individual nonselective nonsteroidal antiinflammatory drugs (NSAIDs) compared with nonuse of these drugs.

Design: Nested case-control study.

Data Source: Administrative health care databases of Saskatchewan, Canada.

[Not Available].

Objective: To know the current situation on the implementation of the patient identification systems in hospital centres in Catalonia.

Methods: Interviews carried out with nurse managers of Catalonian hospitals on patient identification systems, implementation in the different hospital services and data used in the system.

Results: Of the 75 centres studied, 90.