Characteristic

1_donation,

N = 39,099¹

2 - 5

donations,

N = 5,523¹

5 - 10

donations,

N = 645¹

10 - 20

donations,

N = 396¹

20 - 30

donations,

N = 170¹

Over_30_

donations,

N = 106¹

p-value^b

Age ^a

28 (22, 38)

33 (25, 44)

44 (34, 53)

47 (38, 57)

50 (42, 57)

48 (43, 55)

<0.001

age category

<0.001

16 - 23

12,870 (33%)

1004 (18%)

17 (2.6%)

3 (0.8%)

0 (0%)

1 (0.9%)

23 - 29

9015 (23%)

1250 (23%)

70 (11%)

36 (9.1%)

3 (1.8%)

3 (2.8%)

29 - 39

8550 (22%)

1397 (25%)

165 (26%)

72 (18%)

31 (18%)

13 (12%)

39 - 65

8664 (22%)

1872 (34%)

393 (61%)

285 (72%)

136 (80%)

89 (84%)

Gender

<0.001

Female

11,933 (31%)

1455 (26%)

177 (27%)

78 (20%)

18 (11%)

9 (8.5%)

Male

27,166 (69%)

4068 (74%)

468 (73%)

318 (80%)

152 (89%)

97 (92%)