Investigation on apheresis platelet donors in Chengdu from 2010 to 2015

Abstract

Objective To investigate the current situation and trend of apheresis platelet donation in Chengdu from 2010 to 2015, in order to provide scientific bases for apheresis platelet collection plan, apheresis platelet donors enrollment plans and guidance of blood transfusion. Methods From 2010 to 2015, a total of 73 106 donors who donated apheresis platelet in Chengdu Blood Center were selected as research subjects. The information management system of blood bank was used to collect apheresis platelet donors′ information including age, gender, and number of blood donation. The speeds of development and increase were used to describe the developing trend of apheresis platelet donors in Chengdu form 2010 to 2015, and statistical methods were used to compare the differences of composition ratios of different genders and ages of apheresis platelet donors form 2010 to 2015. Results ① From 2010 to 2015, the number of apheresis platelet donation in Chengdu increased from 6 798 cases to 17 684 cases, with an absolute increase of 10 866 cases, and an annual average increase of 2 173 cases, and the annual average increase rate was 21.1%. From 2010 to 2015, the link growth rate of each year was 22.4%, 28.4%, 31.1%, 11.6% and 13.2% respectively, among which the link growth rates in 2012 and 2013 were higher than those in other years. ② From 2010 to 2015, among the apheresis platelet donors in Chengdu, male apheresis platelet donors (72.02%, 52 650/73 106) were more than female (27.98%, 20 456/73 106), and the proportions of male donors were all more than 60% in each year. Among them, proportion of male donors was the highest in 2014, accounted for 76.88% (12 010/15 622). There was significant difference of gender ratios of apheresis platelet donors from 2010 to 2015 (χ2=691.483, P 25-30 years old and >30-35 years old groups increased gradually. From 2012, blood donors with the age of >55-60 years old participated in apheresis donation team, the proportions of each year from 2012 to 2015 were 0.46% (49/4 561), 1.09% (153/14 002), 1.42% (222/15 622) and 1.19% (210/17 684), respectively. There was significant difference of age composition ratios of apheresis platelet donors from 2010 to 2015 (χ2=2 542.556, P<0.001). Conclusions The apheresis platelet donation increases year by year in Chengdu from 2010 to 2015. In each year, male apheresis platelet donors are more than female and 18-25 years old apheresis platelet donors are the main apheresis platelet donors Based on the characteristics of apheresis platelet donation in Chengdu, scientific apheresis platelet collection plan and apheresis platelet donors recruitment program should be established, in order to ensure the provision of adequate and safe apheresis platelet for clinic. Key words: Blood platelets; Blood donor; Investigation