Table 3.

Changes in visual analog scale scores

Group	0.5 h	2 h	4 h	6 h
Control group (n=36)	3.94±0.58	4.50±0.73	3.91±0.80	2.52±0.69
Observation group (n=33)	2.48±0.50	2.90±0.57	1.69±0.63	1.24±0.61
T value	11.049	9.910	12.614	8.102
P value	< 0.001	< 0.001	< 0.001	< 0.001