Eye-tracking control of an adjustable electric bed: construction and validation by immobile patients with multiple sclerosis

Table 6 Correlation matrix of relationships among the observed parameters

	Task time*	Trend task time	Time to first positioning	Trend time to first positioning	Efficiency	Trend efficiency	Age
Task time*	–	0.043	0.623***	0.169	− 0.175	0.062	0.531**
Trend task time	− 0.118	–	0.267	0.084	− 0.346	− 0.353	− 0.198
Time to first positioning	0.535*	− 0.588*	–	0.249	− 0.154	− 0.134	0.365
Trend time to first positioning	− 0.400	0.735**	− 0.588*	–	− 0.210	− 0.118	0.283
Efficiency	− 0.542*	− 0.075	− 0.392	− 0.053	–	− 0.025	0.428*
Trend efficiency	0.159	− 0.382	0.371	− 0.376	− 0.326	–	0.211
Age	− 0.053	0.111	− 0.059	0.096	− 0.236	0.271	–
EDSS	0.282	0.220	0.154	0.088	− 0.004	− 0.587*	− 0.260

Correlations for the patient group and control group are shown below the diagonal and above the diagonal, respectively. The correlations were calculated using Spearman’s nonparametric test. The significance of the relationship is marked by stars: *p < 0.05, **p < 0.01, and ***p < 0.001

ISSN: 1743-0003