Table 1.

Comparison of the Barthel Index between two groups of patients ($\overline{x}$ ± s, points).

Groups	n	Before intervention	After intervention	t	P
Observation group	60	21.89 ± 3.46	45.08 ± 5.24	28.610	˂0.001
Control group	60	22.13 ± 3.25	37.56 ± 4.71	20.890	˂0.001
t		0.392	8.267
P		0.696	0.001