ABSTRACT
【Objective】 To explore the difference of demographics and influencing factors of motivations between whole blood donors and plasmapheresis donors, so as to provide scientific reference for effective recruitment strategy. 【Methods】 A total of 200 whole blood donors from Guangyuan Blood Center and 200 plasmapheresis donors from Jiange Plasmapheresis Station were selected in August 2021 for on-site questionnaire survey using the method of cross-sectional survey. Statistical analysis was performed by chi-square test, univariate and multivariate logistic regression. 【Results】 There were significant differences in gender, age, occupation, education level and annual family income between whole blood donors and plasmapheresis donors (P<0.05). Males accounted for a large proportion of whole blood donors(124/196, 63.3%), whereas females accounted for a large proportion of plasmapheresis donors(117/198, 59.1%). There was little difference in the number of whole blood donors in different age groups, while the age of plasmapheresis donors was concentrated in 40~59 years old (167/198, 84.3%). In terms of occupation, civil servants (including public institutions) accounted the highest proportion in whole blood donors (41/196, 20.9%), and farmers accounted the highest proportion (152/198, 76.8%) in plasmapheresis donors. The number of whole blood donors increased with the education level, and donors with college/university and above degree accounted the largest proportion (80/196, 40.8%). Plasmapheresis donors with junior middle school education and college/university and above accounted the largest and smallest proportion (49.5% vs 4.5%). The annual family income of whole blood donors ranged from 30 000 to 80 000 yuan accounted the largest proportion (109/196, 55.6%), and the annual family income of plasmapheresis donors less than 30 000 yuan accounted the largest proportion (132/198, 66.7%). 【Conclusion】 There were significant statistical differences in gender, age, education level, occupation and annual family income between whole blood and plasmapheresis donors. Therefore, targeted recruitment strategies should be formulated.
ABSTRACT
【Objective】 To systematically evaluate the incidence of donation related vasovagal reactions (DRVR) in China by Meta-analysis method and discuss the risk factors of DRVR, so as to provide scientific basis for the prevention and control of DRVR. 【Methods】 Cochrane Library, PubMed, WanFang Data CNKI and other electronic databases were retrieved to collect research literature concerning the incidence and risk factors of DRVR among whole blood donors in mainland China, with the publishing duration setting from 1998 to 2020. Two reviewers independently screened the literature, extracted the data, and evaluated the methodological quality of the included studies according to the inclusion and exclusion criteria. Then Stata was used for Meta-analysis. 【Results】 A total of 63 studies involving 6 043 945 donors were included. The prevalence of DRVR was 1.0% (95% confidence interval [CI], 0.9%~1.1%, I2=99.7%, P<0.01). The prevalence of DRVR in females (1.4%, 95% CI: 1.0-1.8%, I2=99.6%, P<0.01) was higher than that in males (1.1%, 95 % CI: 0.8-1.4%, I2=99.6%, P<0.01). The incidence of DRVR was 1.3% (95%CI: 0.8-1.8, I2=97.9%, P<0.01), 0.8% (95%CI: 0.5-1.0, I2=95.0%, P<0.01), 0.4% (95%CI: 0.3-0.5, I2=88.5%, P<0.01) and 0.3% (95%CI: 0.1-0.6, I2=96.1%, P<0.01) in the age groups of 18-25, 26-35, 36-45 and 46-55, respectively, and the incidence of DRVR decreased with age(P<0.01). From 1998 to 2020, the incidence of DRVR decreased year by year (P<0.01). The prevalence in first-time donors (1.5%, 95% CI: 1.3-1.8, I2=98.6%, P<0.01) was higher than that of regular donors (0.6%, 95% CI: 0.5-0.7%, I2=97.2%, P<0.01). Anxiety was the major risk factor for DRVR. 【Conclusion】 Our results indicate that blood centers should strengthen the monitoring of DRVR. More attention should be paid to young women, more comfort given to first-time blood donors, and a more perfect system developed to reduce the occurrence of DRVR.
ABSTRACT
BACKGROUND: The peripheral blood hemoglobin and serum ferritin were analyzed in 30 consecutive repeat blood donors (28 men, 2 women; mean +/- SD age: 28.0 +/- 8.6 years: median number of donation 12.9 +/- 9.5) to evaluate the influence of the whole blood donation. 16 beginners in the blood donation were used for normal control (12 men, 4 women; 27.5 +/- 7.5years). METHOD: The repeat donors were grouped into the interval and frequency of donation. At the time of donation, blood samples were collected from all for research. Hemograms were performed using an automatic cell counter and enzyme immunoassay were used for the serum ferritin determination. Total protein and albumin were determined with an autoanalyzer. RESLUTS: The levels of the peripheral blood hemoglobin of the repeat donors were within normal limits and the median level was not significantly differentiated between the tested groups and normal control group. The median level of serum ferritin of the repeat donors was 32.19 +/- 22.82ng/mL, which was significantly low compared to the level of the normal control (62.10 +/- 25.67ng/mL, n=16)and was correlated with the interval and frequency of donation. The donors having short intervals less than 4 month reveal low ferritin level compared to other tested groups even though it was not significant. However the frequency of donation influenced significantly the level of serum ferritin. The median level of serum ferritin of the W/B donors having frequency of donation more often than 5 times was 30.64 +/- 16.22ng/mL, significantly lower than that of other tested groups and normal control (P<0.05). CONCLUSION: The Interval and frequency of blood donation seem to be very important factors that act upon nutiritional status of consecutive repeat donors. Especially consecutive, frequent donation of W/B must be deplet the storage iron in the body. Therefore the interval and frequency of donation must be adjustified and must be permitted in proper manner for korean blood donors. Test items such as hemoglobin and serum ferritin seem to be essential for repeat donors at the time of donation. Also if we can, oral iron supplement could be recommended for the repeat donors in proper time to prevent iron depletion.