Factors influencing repeat blood donor lapsing in Guangzhou: based on the zero-inflated poisson regression model
10.13303/j.cjbt.issn.1004-549x.2025.01.012
- VernacularTitle:广州地区多次献血者流失影响因素研究：基于零膨胀泊松回归模型
- Author:
Rongrong KE
1
;
Guiyun XIE
1
;
Xiaoxiao ZHENG
1
;
Yingying XU
1
;
Xiaochun HONG
1
;
Shijie LI
1
;
Yongshi DENG
2
;
Jinyu SHEN
2
;
Jinyan CHEN
1
;
Jian OUYANG
1
Author Information
1. Guangzhou Blood Center, The Key Medical Laboratory of Guangzhou, Guangzhou 510095, China
2. Guangdong Medical University, Dongguan 523000, China
- Publication Type:Journal Article
- Keywords:
repeat blood donors;
lapsing;
influencing factor;
zero-inflated poisson model (ZIP);
Guangzhou
- From:
Chinese Journal of Blood Transfusion
2025;38(1):73-78
- CountryChina
- Language:Chinese
-
Abstract:
[Objective] To analyze the influencing factors of repeat blood donor lapsing using a zero-inflated poisson regression model (ZIP). [Methods] The blood donation behavior of 12 498 whole blood donors from 2020 was tracked until December 31, 2023. The factors influencing the frequency of blood donations in a given year was analyzed using ZIP, and donors with 0 blood donation in that year were considered to have lapsed. The changes in relevant influencing factors associated with each blood donation were measured and modeled for analysis. [Results] The zero-inflated part of ZIP showed that the risk of lapsing of male blood donors was 2.24 times that of female blood donors (OR 95% CI:1.864-2.696, P<0.001); the risk of lapsing of the 35-44 age group and over 45 age group was respectively 40% (OR 95% CI:0.455-0.790, P<0.001) and 61%(OR 95% CI:0.268-0.578, P<0.001) lower than that of the under 25 age group; the risk of lapsing for those who have donated blood twice and ≥3 times was respectively 50% (OR 95% CI:0.405-0.609, P<0.001) and 81% (OR 95% CI:0.154-0.225, P<0.001) lower than that of first-time donors; the risk of lapsing of those with junior high or high school education was 1.2 times that of those with a college degree or higher (OR 95% CI:1.033-1.384, P<0.05); the risk of lapsing for the divorced group was 2.02 times that of the married group (OR 95% CI:1.445-2.820, P<0.001); the risk of lapsing for those with an income (Yuan) of 10 000 to 50 000, 50 000 to 100 000 and more than 100 000 was respectively 0.67 (OR 95% CI:0.552-0.818, P<0.001), 0.72 (OR 95% CI:0.591-0.884, P=0.002) and 0.67 (OR 95% CI:0.535-0.834, P<0.001) times that of those with an income (Yuan) of less than 10 000. The results of the Poisson part are consistent with the results of the zero-inflated part in terms of age and education level. [Conclusion] Blood donor lapsing is overall related to factors such as gender, age, donation frequency, education, marital status and family income. It's essential to care for those blood donors prone to lapse to retain more regular blood donors.
