Table 2.

Change in willingness to donate and reasons or concerns about donation among Chinese American participants in a randomized controlled trial

	Intervention % (n = 193)				Control % (n = 202)				Delta delta: intervention versus control (n = 395)
	Pre	Post	Delta	P	Pre	Post	Delta	P		P
If healthy, would donate:
Saliva	73	85	12	<0.001	74	81	6	0.008	5	0.05
Urine	62	77	15	<0.001	68	73	5	0.12	10	0.03
Blood (2 vials)	40	49	9	0.07	39	42	2	0.18	6	0.22
Toenails	43	56	13	<0.001	49	44	−4	0.10	18	<0.001
Hair	55	67	12	<0.001	58	58	0	0.88	13	<0.001
If have cancer, would donate:
Saliva	71	85	15	<0.001	73	81	8	0.005	7	0.03
Urine	63	79	17	<0.001	72	73	1	0.64	16	<0.001
Blood (2 vials)	51	54	3	0.45	51	50	−1	0.71	4	0.40
Toenails	44	59	15	<0.001	53	49	−5	<0.001	20	<0.001
Hair	52	72	20	<0.001	64	61	−3	0.04	23	<0.001
If have cancer, donate  unused tissue	76	86	10	<0.001	82	82	0	0.77	10	<0.001
Reasons for willingness to donate
Future generations will   benefit	74	88	15	<0.001	77	81	4	0.10	10	0.002
A person I know would   benefit	48	56	8	0.001	42	47	5	0.29	3	0.62
I could be notified about   abnormal results	26	27	1	0.74	34	25	−9	0.001	10	0.01
Samples would already be   collected as part of my   medical care	18	22	4	0.30	23	20	−3	0.61	8	0.33
Concerns about donating for cancer research
Losing my privacy	35	34	−1	0.91	34	39	4	0.06	−5	0.36
Being asked to donate   more later	25	25	0	1	25	23	−2	0.62	2	0.77
Not knowing how my   donation will be used	25	21	−4	0.58	33	31	−2	0.69	−2	0.84
Not getting medical   information about my   donation	16	11	−5	0.02	18	17	0	0.90	−4	0.35
Upsetting the balance of   “qi” in my body	10	12	2	0.59	9	8	−1	0.75	3	0.53
Not maintaining the entire   body, which our parents   and ancestors gave to us	7	6	−1	0.77	12	11	0	0.80	0	0.99

NOTE: Bold P values reflect a statistical significance of P < 0.05.