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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Transfusion. 2009 Dec 9;50(4):909–917. doi: 10.1111/j.1537-2995.2009.02526.x

Table 1.

Demographics of All Donors with Allogeneic, Whole Blood Donation and Deferrals in Sao Paulo (Aug-Nov 2008)

Total Sample (N = 33940) Survey Sample (N = 6119)
Pamphlet No Pamphlet P-Value Pamphlet No Pamphlet P-Value
Gender 0.083 0.746
Male 9547 (56.6%) 9826 (57.5%) 1898 (59.0%) 1724 (59.4%)
Female 7317 (43.4%) 7250 (42.5%) 1319 (41.0%) 1178 (40.6%)
Age in years 0.024 0.054
< 25 4128 (24.5%) 3964 (23.2%) 886 (27.5%) 740 (25.5%)
25-35 6031 (35.8%) 6082 (35.6%) 1080 (33.6%) 1036 (35.7%)
35-45 3762 (22.3%) 4011 (23.5%) 719 (22.3%) 652 (22.3%)
45-55 2187 (13.0%) 2280 (13.4%) 388 (12.1%) 374 (13.0%)
55-65 756 (4.5%) 738 (4.3%) 144 (4.5%) 100 (3.5%)
Missing or unknown 1 (.00%) --- --- ---
Education 0.121 0.368
Less than 8 yrs of formal
education
1850 (11.0%) 1956 (11.5%) 330 (10.2%) 288 (9.9%)
Complete 8 yrs of formal
education
1934 (11.5%) 2009 (11.8%) 385 (12.0%) 314 (10.8%)
Complete 11 yrs of
formal education
8517 (50.5%) 8553 (50.1%) 1811 (56.3%) 1638 (56.5%)
Complete university 3014 (17.8%) 2911 (17.0%) 691 (21.5%) 662 (22.8%)
Missing or unknown 1549 (9.2%) 1647 (9.6%)
Donation Type p<.01
Replacement 2388 (14.2%) 2993 (17.5%)
Community 11449 (67.9%) 10922 (64%)
Missing or unknown 3027 (17.9%) 3161 (18.5%)
Donor Type p <.01
First Time 4491 (26.6%) 4790 (28.1%)
Repeat 9346 (55.4%) 9125 (53.4%)
Missing or unknown 3027 (17.9%) 3161 (18.5%)