Table 3.

Comparison of postoperative activities between the two groups (x±SD)

Group	First time to get down to the ground (h)	Duration of first activity on the ground (min)	Distance of first activity on the ground (m)
Control group (n = 50)	10.50±2.48	17.92±1.29	30.90±4.31
Observation group (n = 50)	3.56±0.99*	18.18±1.49	30.12±3.00
t-value	18.377	0.933	1.050
P-value	< 0.001	0.353	0.296

Note: Compared to Control group;

^*P < 0.05.