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Prevalence of Bleeding Symptoms in Denmark Using the Patient-administered Bleeding Assessment Tool (self-BAT)
Rasmus Søgaard Hansen1,2, Pernille Just Vinholt1,2
1Dept. of Clinical Biochemistry, Odense University Hospital, Odense, Denmark.
Insights
The patient-administered bleeding assessment tool (self-BAT) establishes new abnormal score cut-offs for identifying bleeding disorder risks in children and adults. These validated scores aid in screening diverse populations for potential bleeding issues.
Area of Science:
- Hematology
- Medical Screening
Background:
- The patient-administered bleeding assessment tool (self-BAT) is crucial for screening individuals for bleeding disorders.
- However, large-scale studies on self-BAT scores in healthy populations, stratified by gender and age, are limited.
Purpose of the Study:
- To establish abnormal total score cut-offs for the self-BAT in various age and gender groups.
- To determine the prevalence of bleeding symptoms using the self-BAT in Danish blood donors and the general population.
Main Methods:
- A Danish version of the self-BAT was administered to 15,600 children and 18,200 adults from the general Danish population, including blood donors.
- Cut-offs for abnormal total self-BAT scores were determined using data from healthy children (0-11 and 12-17 years), adult women, and adult men.
Main Results:
- The 95th percentile scores indicating potential abnormality were: 2 for young girls, 3 for young boys, 4 for adolescent girls, 3 for adolescent boys, 8 for women, and 4 for men.
- These results provide a basis for defining abnormal total self-BAT scores across different demographic groups.
Conclusions:
- Abnormal total self-BAT scores are proposed as: ≥3 (girls 0-11), ≥4 (boys 0-11), ≥5 (girls 12-17), ≥4 (boys 12-17), ≥9 (women), and ≥5 (men).
- Further research is necessary to validate these cut-offs for accurate diagnosis of bleeding disorders.
Introduction:
The patient-administered bleeding assessment tool (self-BAT) is a screening tool developed to identify individuals in need of work-up for bleeding disorders. Nonetheless, large studies on self-BAT scores on healthy individuals according to gender and age are lacking.
Aim:
Determine cut-offs for abnormal total score of self-BAT and investigate the prevalence of bleeding symptoms in blood donors and individuals representative of the general Danish population.
Methods:
Blood donors, 15,600 children (<18 years) and 18,200 adults from the general Danish population, were invited to complete a Danish version of the self-BAT. To determine cut-offs for abnormal total self-BAT score, findings from healthy young children (0-11 years old), healthy adolescents (12-17 years old), healthy adult women and healthy adult men were used.
Results:
Among healthy young children (244 girls, 260 boys), healthy adolescents (58 girls, 83 boys), healthy women (n = 437) and healthy men (n = 278) from the general population, along with healthy blood donors (116 women, 176 men), the 95th percentile for total score was two for young girls, three for young boys, four for adolescent girls, three for adolescent boys, eight for women and four for men.
Conclusion:
Our findings indicate that the abnormal total self-BAT score is ≥3 for girls aged 0-11 years old, ≥4 for boys aged 0-11 years old, ≥5 for girls aged 12-17 years old, ≥4 for boys aged 12-17 years old, ≥9 for women and ≥5 for men. To establish the accuracy of these cut-offs for diagnosing bleeding disorders, further studies are needed.
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