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Blood Donation Knowledge Questionnaire (BDKQ-Brazil): analysis of items and application in primary healthcare users

Miriane Lucindo Zucoloto1, Edson Zangiacomi Martinez1

  • 1Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (FMRP USP), Ribeirão Preto, SP, Brazil.

Hematology, Transfusion and Cell Therapy
|October 30, 2018
PubMed

Insights

This study evaluated the Blood Donation Knowledge Questionnaire in primary care users. Knowledge about blood donation is linked to sex, education, and prior donation history.

Area of Science:

  • Public Health
  • Health Education
  • Health Services Research

Background:

  • Assessing knowledge about blood donation is crucial for improving donation rates.
  • Primary care services offer a valuable setting to reach a diverse population for health knowledge assessments.
  • Understanding sociodemographic factors influencing blood donation knowledge is key to targeted interventions.

Purpose of the Study:

  • To evaluate the Blood Donation Knowledge Questionnaire in a large primary care user sample.
  • To assess the psychometric properties of the questionnaire items.
  • To examine the association between blood donation knowledge and sociodemographic variables.

Main Methods:

  • A 24-item Blood Donation Knowledge Questionnaire was administered to 1055 primary care users.
  • Data were collected from 12 healthcare facilities in Ribeirão Preto, São Paulo.
  • Item analysis used classical test theory; associations were analyzed with Tobit regression.

Main Results:

  • The questionnaire demonstrated good item understanding, facility, and discrimination.
  • Higher knowledge scores were observed in females, individuals with higher education, and those who had previously donated blood.
  • 23.3% of participants had donated blood previously, 63.4% had never donated, and 13.3% were ineligible.

Conclusions:

  • The Blood Donation Knowledge Questionnaire is a valid instrument for assessing general knowledge about blood donation.
  • Blood donation knowledge among primary care users is significantly associated with sex, educational level, and prior donation experience.
  • Findings support the use of the questionnaire in diverse settings to inform blood donation education strategies.
Abstract

Keywords:
Blood donationBlood donor beliefsKnowledgePrimary healthcare usersScales

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