Table 2. Comparing the ADL and IADL scores at baseline and 1, 3, 6, and 12 months of follow-up in groups with delirium.

	Time of follow-up (months)
	Non-adjusted functional status (mean ± SE)					Adjusted baseline functional status by ANCOVA (mean ± SE)
Outcomes variables	Baseline	1	3	6	12	1	3	6	12
ADL (BI) scores (mean ± SE)
Delirium (N = 17)	85.9±4.81#	77.9±5.25#	79.4±5.62#	81.8±5.44#	81.8±5.86#	83.0±2.82#	84.5±2.77#	86.9±3.06#	86.4±3.18#
No delirium (N = 165)	95.6±0.80	93.2±0.93	94.9±0.89	95.2±1.00	95.6±0.99	92.7±0.88	94.4±0.87	94.6±0.96	95.2±1.00
IADL scores (mean ± SE)
Delirium (N = 17)	4.4±0.40#	3.4±0.45#	3.4±0.47#	3.2±0.53#	2.9±0.53#	4.4±0.28#	4.4±0.28#	4.3±0.33#	4.0±0.33#
No delirium (N = 165)	5.8±0.09	5.3±0.11	5.6±0.11	5.6±0.12	5.7±0.12	5.2±0.09	5.5±0.09	5.5±0.10	5.6±0.10

^#p<0.05 for comparing groups by delirium status. ANCOVA: Analysis of Covariance.