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Table 1 Questionnaire structure for Donor and Non-Donors (in brackets the item’s text adapted for Non-Donors group)

From: Promoting the propensity for blood donation through the understanding of its determinants

Dimension Item Code References
Attitude I think that donating blood is ethical. ATT_1 [11]
I think that donating blood is useful. ATT_2
I think that donating blood is safe. ATT_3
I think that donating blood is a moral obligation. ATT_4
Donating blood is important to me. ATT_5
I think that donating blood is a personal responsibility. ATT_6
Subjective norm Most people that are important to me appreciate that I am a donor.
[most people that are important to me would appreciate if I became a donor]
SN_1 [11]
Most people that are important to me think that I should donate blood. SN_2
Most people that are important to me appreciate the donation activity. SN_3
Perceived behavioural control It is easy to possess the requisites to donate. PBC_1 [11]
People who have a regular life are more likely to be blood donors. PBC_2
If I decide to donate in the next weeks, I could do it without difficulty. PBC_3
Inhibitors Fear of needles. INHI_2 [16]
Qualitative phase
Pain when drawing. INHI_3
Sight of blood. INHI_4
Unpleasant sensations related to the withdrawal (fainting. Weakness. nausea). INHI_5
Withdrawal preparation (compliance with requirements). INHI_6
Information and communication It is necessary to increase donation awareness activities. COM_1 Qualitative phase
It is necessary to make young people aware of donation through activities in schools and universities. COM_2
It is necessary to increase donation awareness through social media and social networking. COM_3
It is necessary to introduce promotional campaigns through web and social networks COM_4
Service quality The medical staff should be kind. SQ_2 [32, 65, 66]
The medical staff should be competent. SQ_3
The medical staff should support me during and after the donation. SQ_5
Intention I would like to donate blood again
[I would like to become a donor]
INT_1 [11, 16]
I would like to donate blood more often
[I will donate blood for the first time]
INT_2
I would like to donate blood even without receiving benefits (e.g., discounts, economic benefits). INT_3
WOM I would recommend blood donation to my friends and family. WOM_1 [11, 16]
I would recommend blood donation on social networks. WOM_2
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