Fig 1.
Levels of analysis: solicitations, individuals, and collection sites.
Buildings represent fixed collection sites. The truck represents a mobile collection site.
Fig 2.
Conceptual model of compliance with solicitations for donations.
Structural elements are depicted as boxes, and elements of the decision-making process are depicted as ellipses.
Table 1.
Descriptive statistics of study measures.
Fig 3.
Compliance with solicitations for whole blood donations in 2012 and 2013.
The dashed lines indicate the means of each distribution. (A) Compliance on the individual level, N = 24 016 individuals. (B) Compliance on the collection site level, N = 164 collection sites.
Fig 4.
Level of compliance by recruitment via word of mouth and by the level of talking about donations on the individual level and the collection-site level.
(A) Level of compliance for donors that were recruited via WOM or not, N = 23 862, missing = 183. (B) Level of compliance by level of talking about donations, N = 24 016, missing = 29. (C) Level of compliance by WOM recruitment on collection site level, N = 164. (D) Level of compliance by level of talking about donations on collection site level, N = 164.
Fig 5.
Coefficient plot of average marginal effects (AMEs) on the probability of compliance with a solicitation for a donation.
AMEs are based on model 2 in S2 Table.
Fig 6.
Average marginal effect of talking about donations with 95% CI by level of experience as a blood donor.
AMEs are based on model 2 in S2 Table.