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Related Concept Videos

Blood Flow01:29

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Blood is pumped by the heart into the aorta, the largest artery in the body, and then into increasingly smaller arteries, arterioles, and capillaries. The velocity of blood flow decreases with increased cross-sectional blood vessel area. As blood returns to the heart through venules and veins, its velocity increases. The movement of blood is encouraged by smooth muscle in the vessel walls, the movement of skeletal muscle surrounding the vessels, and one-way valves that prevent backflow.
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The blood in our bodies comprises three major components: blood plasma, formed elements, and the extracellular matrix. Blood plasma is a yellowish fluid that constitutes 55% of the total blood volume. It is primarily made up of water and essential substances such as electrolytes and proteins. Blood plasma serves as a medium for transporting blood cells and also contains nutrients, enzymes, hormones, antibodies, and gases.
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Human blood is classified into different types based on the presence of antigens on the red blood cell's surface and antibodies in the plasma. Proper identification of blood type is essential for successful blood transfusion. The International Society of Blood Transfusion has identified 38 human blood types based on the surface antigens on the red blood cells. The most common types are ABO, Rh, and MNS blood types.
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Why do young men lapse from blood donation?

Caroline Öhrner1,2, Maria Kvist1,2, Karolina Blom Wiberg1,2

  • 1Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden.

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Young men often stop donating blood due to habit, lack of time, and life changes. Improving accessibility and sending reminders can help retain these vital blood donors.

Keywords:
blood donationdonor motivationdonor retentiongenderlapsing donors

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Area of Science:

  • Blood donation science
  • Public health initiatives
  • Donor retention strategies

Background:

  • Men typically have larger blood volumes and iron stores, making them ideal blood donors.
  • Women constitute the majority of blood donors in Stockholm, particularly in younger demographics.
  • A significant turnover exists among young male blood donors aged 18-35.

Purpose of the Study:

  • To investigate the motivations behind cessation and return among young male blood donors in Stockholm.
  • To identify factors influencing donor retention and inform strategies for improving it.

Main Methods:

  • Demographic analysis of the blood donor population in Stockholm.
  • An online survey distributed to 1012 lapsing male donors aged 18-35.
  • Survey questions focused on reasons for lapsing, willingness to return, and donor motivation.

Main Results:

  • The primary reason for lapsing was falling out of the habit of donation, despite invitations.
  • Lack of time, work, travel, and personal life changes were significant factors in donor cessation.
  • Adverse events played a minor role; most donors would return if they had more time or received further invitations.
  • First-time donors were more likely to return if informed about their blood's use and considered time spent as crucial.

Conclusions:

  • Enhancing accessibility and implementing consistent invitations are key to retaining young male blood donors.
  • Addressing time constraints through increased availability and shorter donation visits is recommended.
  • Support is needed to help young men integrate blood donation into their regular routines.