Table 1.

Individual‐ and country‐level predictors of blood donation willingness stratified by previous donor experience

Fixed factors	Nondonors					Donors
	B	SE	OR	95% CI	p value	B	SE	OR	95% CI	p value
Intercept	−2.807	1.809				−1.890	1.242
Model 1
HDI	2.301	2.071	9.987	0.172‐578.737	0.267	3.790	1.291	44.250	3.523‐555.823	0.003*
Sex (male)	0.114	0.046	1.120	1.024‐1.226	0.013*	0.152	0.060	1.164	1.034‐1.311	0.012*
Age	−0.035	0.002	0.966	0.962‐0.970	0.000*	−0.040	0.003	0.960	0.954‐0.966	<0.001*
Years of education	0.016	0.005	1.016	1.007‐1.025	0.001*	0.010	0.008	1.010	0.994‐1.026	0.210
Difficulty paying bills: never	0.236	0.086	1.266	1.070‐1.498	0.006*	0.094	0.118	1.098	0.872‐1.383	0.426
Difficulty paying bills: sometimes	0.167	0.092	1.182	0.987‐1.414	0.068	0.131	0.146	1.140	0.857‐1.517	0.368
Employed	0.164	0.045	1.178	1.078‐1.288	<0.001*	0.270	0.057	1.310	1.172‐1.465	0.000*
Having a partner	0.061	0.044	1.063	0.974‐1.159	0.171	0.113	0.047	1.120	1.021‐1.229	0.016*
Having a child	0.069	0.045	1.071	0.980‐1.171	0.129	0.230	0.075	1.259	1.088‐1.457	0.002*
Living in a rural area	−0.043	0.077	0.958	0.823‐1.115	0.582	−0.150	0.093	0.861	0.717‐1.034	0.109
Living in a town	−0.038	0.076	0.963	0.829‐1.118	0.621	−0.016	0.084	0.984	0.834‐1.160	0.844
Model 2: transfusion‐related factors
Accepts treatment with blood	1.118	0.056	3.060	2.741‐3.417	<0.001*	0.252	0.092	1.287	1.075‐1.540	0.006*
Perceives transfusion as safe	0.337	0.031	1.401	1.319‐1.489	<0.001*	0.217	0.035	1.242	1.161‐1.330	<0.001*
Knows recipient of blood	0.107	0.052	1.113	1.005‐1.233	0.041*	0.265	0.055	1.303	1.169‐1.452	<0.001*
Random factors
Change in AICC (change in df)†	2489.9	(3)	p value			1196.5	(3)	p value
Variance (intercept)	0.228	0.065	<0.001			0.102	0.033	0.002
Wald Z	3.523					3.084

^* p < 0.05.

^† Model 2 compared to Model 1.