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Pre-donation deferral of blood donors in South Indian set-up: An analysis
P Sundar1, S K Sangeetha, D M Seema
1Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bangalore - 560 029, India.
Insights
Blood donation deferral rates are higher in females due to low hemoglobin, low body weight, and hypotension. Younger donors also show higher deferral rates, primarily for low hemoglobin.
Area of Science:
- Transfusion Medicine
- Hematology
- Public Health
Background:
- Many healthy individuals are deferred from blood donation for various reasons.
- Understanding deferral patterns is crucial for maintaining blood supply safety and adequacy.
Purpose of the Study:
- To analyze the rate and causes of blood donor deferrals.
- To identify demographic factors influencing deferral rates in a Bangalore Transfusion Medicine Centre.
Main Methods:
- Retrospective analysis of donor records from January 2005 to December 2007.
- Data categorized by age groups, sex, and deferral reasons.
- Comparison of deferral rates between males and females.
Main Results:
- Overall deferral rate was 5.84% (976 out of 16,706 donors).
- Females had a significantly higher deferral rate (19.85%) compared to males (4.06%).
- Common deferral reasons: low hemoglobin, low body weight, hypotension (females); hypertension, underweight, low hemoglobin (males).
- Highest deferral rates observed in the 18-25 age group, predominantly due to low hemoglobin.
Conclusions:
- Female blood donors are deferred at a much higher rate than males.
- Low hemoglobin levels are a primary cause for deferral across various demographics.
- Targeted interventions may improve donor retention and blood supply.
Background:
It is well known that quite a large number of apparently healthy donors are not able to donate blood successfully because of varied reasons.
Aim:
We want to analyze the rate and various reasons for deferrals.
Materials And Methods:
A retrospective analysis of records of the donors, for 3 years, from January 2005 to December 2007 was done, in order to find out the rate and causes of deferral in four categories of age groups, both in male and female, in our Transfusion Medicine Centre, Bangalore, India.
Result:
There were 16,706 donors, of which 976 donors were deferred (5.84%) for various reasons. Of the 16,706 donors registered for donation, females constituted only 11.27%. And deferral rate was about five times more for female (19.85%) compared to male (4.06%). The three most common reasons for deferral in female were low hemoglobin levels, low body weight, and hypotension. The deferral rate was higher in the age group of 18-25 years and most common cause was low hemoglobin level. In male, the three most common reasons for deferral were hypertension, under weight, and low hemoglobin levels. The deferral rate varied from 4 to 15% as reported in the literature. The most common cause of deferral in our study and in several studies available in the literature is the same.
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