Table 3.

Receiver Operating Characteristic (ROC) Curve Areas for the Prediction of Medical and Social Care Services Use in the 3 Years After Baseline Assessment Using the Health Assessment Tool (HAT) or Single Components of HAT (Morbidity and Disability). Only People Living in the Community at Baseline Were Included in the Analyses (n = 2,955)

	Predictors
Care service	HAT	Morbidity*	p value	Disability†	p value
Hospital admissions (one or more)	0.70	0.66	<.001	0.59	<.001
Primary care visits (over the median value)	0.71	0.69	.056	0.57	<.001
Specialty care visits (over the median value)	0.62	0.65	<.001	0.51	<.001
Formal care (one or more hours/ month)	0.76	0.58	<.001	0.65	<.001
Informal care (one or more hours/ month)	0.74	0.59	<.001	0.62	<.001

*Morbidity: number of chronic diseases.

^†Disability: number of impairments in activities of daily living plus instrumental activities of daily living.