Monitoring transfusion practice--a computerized procedure

Area of Science:

• Medical Informatics
• Epidemiology
• Health Services Research

Background:

• Transfusion practice epidemiology is poorly understood due to reliance on paper records and manual data collection.
• Previous studies often used custom-built registers, limiting scope and comparability.
• A need exists for efficient, large-scale methods to monitor blood transfusion practices.

Purpose of the Study:

• To describe a procedure for monitoring transfusion practices using existing computerized registers.
• To demonstrate the feasibility of linking transfusion data with clinical information for epidemiological analysis.
• To propose a framework for a national network for transfusion practice data.

Main Methods:

• Data collected from blood transfusion, diagnosis/procedure, and clinical biochemistry registers (1997-1998).
• Utilized national Personal Identification Number for unique record linkage.
• Linked over 98% of transfusions to patient records and 95% to principal diagnoses.

Main Results:

• Successfully collected over 750,000 data records from existing hospital registers.
• Achieved high linkage rates (>98% for transfusions, ~95% to diagnoses) using the Personal Identification Number.
• Demonstrated the potential for detailed, large-scale analysis of transfusion practices.

Conclusions:

• A procedure for monitoring transfusion practices using existing computerized registers is feasible and effective.
• This method allows for large-scale, detailed studies of transfusion epidemiology.
• Establishing a comparable data network is proposed to enhance transfusion practice research nationally.