Table 1.

Participant demographic characteristics

	Malaysia	CA	Total	%	P value
	n	n	n		*p < 0.01
Age (n = 94)					0.013
18–24	1	3	4	4
25–34	25	14	39	42
35–44	12	14	26	28
45–54	5	7	12	13
55–64	1	8	9	10
65+	0	3	3	3
Hospital site (n = 108)					N/A
University of Malaya Medical Center	54	0	54	50
University of California Irvine	0	26	26	24
Long Beach Memorial Medical Center	0	19	19	18
Children’s Hospital of Orange County	0	9	9	8
Gender (n = 107)					0.740
Female	35	34	69	65
Male	18	20	38	35
Country (n = 108)					N/A
Malaysia	54	0	54	50
United States	0	54	54	50
Patient status (n = 108)					0.002
Patient	4	17	21	19
Caretaker	50	37	87	81
Educational background (n = 103)					0.083
Did not complete high school	1	2	3	3
High school	15	5	20	19
Some college	8	16	24	23
Bachelor’s degree	16	17	33	32
Graduate/professional degree	11	12	23	22
Income level (n = 104)					0.002*
Low income (< $30,000/year)	20	20	40	39
Middle income ($30,000–$60,000/year)	25	10	35	34
High income (> $60,000/year)	8	21	29	28
Ethnicity (n = 108)					N/A
Asian (Malaysian)	23	0	23	21
Asian (Chinese)	20	0	20	19
Asian (Indian)	9	0	9	8
Asian (Other/Pacific Islander)	0	5	5	5
White	0	28	28	26
Black	1	2	3	3
Hispanic	0	12	12	11
Two or more ethnicities	1	7	8	7
Religion (n = 98)					N/A
Buddhism	16	1	17	17
Catholicism	1	10	11	11
Christianity	8	18	26	27
Hinduism	8	0	8	8
Islam	19	1	20	20
Judaism	0	1	1	1
None	2	9	11	11
Other	0	4	4	4

p values performed using X² (or Fisher’s exact) analysis comparing MY and CA cohorts. *Significance level of p < 0.05