表 1.

Comparison of VAS scores at rest after operation between 2 groups ( , n=30)

两组术后静息VAS评分比较（ ，n=30）

组别 Group	2 h	4 h	8 h	12 h	24 h	48 h	72 h	出院当天 Discharge
A	2.17±0.91	2.60±1.10	2.70±0.95	2.77±1.36	3.07±1.34	2.83±1.60	2.53±1.41	1.67±0.96
B	2.60±1.00	3.00±1.36	3.17±1.34	3.60±1.55	4.10±1.67	3.70±1.24	3.43±1.50	2.17±0.95
统计值 Statistic	t=–1.750 P= 0.085	t=–1.249 P= 0.221	t=–1.554 P= 0.126	t=–2.220 P= 0.030	t=–2.647 P= 0.010	t=–2.349 P= 0.022	t=–2.395 P= 0.020	t=–2.029 P= 0.047