Table 3.

BI scores at baseline and 6 months in patients with and without ARDS

	ARDS (n = 26)	Non-ARDS (n = 41)	P value between-patient comparisona
BI baseline, mean ± SD	80.0 ± 24.7	87.8 ± 21.5	0.03
BI 6 months, mean ± SD	82.3 ± 22.9	89.6 ± 23.2	0.007
BI delta (difference in means)	2.3 (95 % CI –3.4, 8.0)	2.0 (95 % CI –3.2, 7.3)	0.5
P value within-patient comparisonb	0.6	0.2

^aWilcoxon rank sum test; ^bWilcoxon signed rank test. ARDS acute respiratory distress syndrome, BI Barthel index