Table 2.

Linear regression with time in upright position (minutes) as dependent variable. Association between SPPB, Age, Diagnosis of cognitive impairment, BI and CIRS and time in upright position. Regression coefficients β, 95% confidence interval (CI) for regression coefficients and p-value in the unadjusted and fully adjusted regression model

Independent variable	Unadjusted			Fully adjusted
	Regression coefficient β			Regression coefficient β
	Estimate	95% CI	p-value	Estimate	95% CI	p-value
Mobility (SPPB)a	17.85	9.91 to 25.80	<0.001	11.74	0.13 to 23.34	0.048
Age	−2.37	−7.12 to 2.39	0.319	1.07	−3.16 to 5.30	0.608
Diagnosis of cognitive impariment	−1.73	−69.97 to 66.50	0.96	−8.51	−74.83 to 57.80	0.794
ADL-Function (BI)b	12.54	6.78 to 18.29	<0.001	6.32	−1.92 to 14.56	0.127
Morbidity (CIRS)c	−10.23	−16.65 to - 3.82	.003	−4.41	−11.59 to 2.77	0.218

^aShort Physical Performance Battery

^bBarthel Index

^cCumulative Illness Rating Scale