Table 3.

Comparison of Impact Scores

Item		US			UK
	n	Mean	sd	n	Mean	sd	P*	Direction
	Factor 1 Impact of Role Change
2 I feel sad.	112	5.39	4.94	99	7.14	4.99	.011	UK>US
6 I miss the relationship I had with him/her	110	8.06	6.14	100	9.52	5.48	ns
1 I feel no one knows what I'm going through.	112	4.13	4.74	95	4.71	4.65	ns
14 I feel overwhelmed by the changes in my life.	112	4.31	5.16	102	4.07	4.69	ns
7 I'm like a parent to him/her.	103	5.18	6.14	92	6.95	5.48	ns
5 It is difficult to distinguish the HD from the person	110	5.43	5.87	89	6.36	5.30	ns
3 I worry about our family's finances.	118	5.69	5.60	102	3.74	4.70	.006	US>UK
Total for Factor 1	121	5.34	4.21	106	5.98	3.53	ns
	Factor 2 Sense of Isolation
16 Family doesn't want to be around him/her.	113	3.52	4.83	93	2.95	4.48	ns
21 I resent relatives who could help but choose not to.	112	3.75	5.35	96	3.70	5.76	ns
24 I worry that I will develop HD.	20	3.95	5.38	11	0.00	0.30	.003	US>UK
Total for Factor 2	119	3.54	4.32	104	3.17	4.29	ns
	Factor 3 Concern for Children
27 I worry that my child(ren) will develop HD.	79	8.78	6.76	39	5.23	6.29	.007	US>UK
28 I worry that the quality of my children's relationship with him/her has declined since the illness.	77	5.38	6.44	48	2.79	4.66	.011	US>UK
Total for Factor 3	83	7.05	5.36	54	3.13	4.32	.000	US>UK
Total	121	5.23	3.83	107	5.23	3.17	ns

^*All tests were conducted using equal variance independent t tests when group variances were not significantly different or unequal variance independent t tests when group variances were significantly different.