Feasibility, validity and reliability of the ASCOT-Proxy and ASCOT-Carer among unpaid carers of people living with dementia in England

Table 5 Factor loadings and unique variances for the ASCOT-Proxy-person: comparison of one factor solution vs two-factor solution

ASCOT-Proxy-person (original)	One factor solution		Two-factor solution
Item	Factor 1	Uniqueness	Factor 1	Factor 2	Uniqueness
Food and drink	0.4634	0.7853	0.3870	0.1032	0.7929
Accommodation cleanliness and comfort	0.6487	0.5793	0.8219	-0.0724	0.3889
Personal cleanliness and comfort	0.7286	0.4692	0.8547	0.0085	0.2609
Personal safety	0.4929	0.7571	0.2920	0.2420	0.7735
Social participation and involvement	0.4364	0.8096	-0.1222	0.6166	0.6931
Control over daily life	0.7076	0.4993	0.1971	0.5872	0.4809
Occupation	0.7038	0.5046	-0.0428	0.9150	0.2067
Dignity	0.2507	0.9371	0.0367	0.2261	0.9378
ASCOT-Proxy-person (recoded)^a	One factor solution		Two-factor solution
Item	Factor 1	Uniqueness	Factor 1	Factor 2	Uniqueness
Food and drink: recoded	0.4160	0.8269	0.1308	0.3372	0.8162
Accommodation cleanliness and comfort	0.6534	0.5731	-0.1252	0.9521	0.2209
Personal cleanliness and comfort	0.7199	0.4817	0.1257	0.7005	0.3877
Personal safety	0.4898	0.7601	0.2551	0.2855	0.7659
Social participation and involvement	0.4477	0.7996	0.6373	-0.1359	0.6794
Control over daily life: recoded	0.7295	0.4677	0.6584	0.1208	0.4563
Occupation	0.7054	0.5024	0.8855	-0.0629	0.2789
Dignity	0.2788	0.9222	0.2311	0.0720	0.9214

In case of two-factor solution, we report rotated factor loadings (oblique rotation-promax). The correlation between the promax rotated factors was: 0.5851 for the ASCOT-Proxy-person (original) and 0.6008 for the ASCOT-Proxy-person (recoded). This suggests that promax rotation is an acceptable solution (the correlation was higher than 0.30).
^aThe lowest two (high-level of unmet needs, some needs) and highest two categories (no needs, ideal state) were combined for food and drink and for control over daily life.

ISSN: 1477-7525