表 4.

Comparison of walking distance and pain VAS scores while walking between 2 groups ( )

两组患者术后步行距离以及步行疼痛评分比较（ ）

组别 Group	例数 n	步行距离（m） Walking distance (m)					步行疼痛评分 Pain VAS score while walking
		术后 1 d One day after operation	术后 2 d Two days after operation	术后 3 d Three days after operation	出院时 Discharge		术后 1 d One day after operation	术后 2 d Two days after operation	术后 3 d Three days after operation	出院时 Discharge
试验组 Trial group	53	15.28±16.88	24.00±18.58	41.13±27.85	63.70±27.05		3.7±1.2	3.1±1.4	2.7±1.3	2.3±1.1
对照组 Control group	51	10.44±14.15	20.56±22.60	37.20±32.06	42.79±24.75		5.1±1.4	4.5±1.5	3.1±1.4	3.0±1.3
统计值 Statistic		t=1.554 P=0.123	t=0.838 P=0.404	t=0.662 P=0.510	t=3.145 P=0.003		t=–5.335 P= 0.000	t=–4.961 P= 0.000	t=–1.446 P= 0.151	t=–2.196 P= 0.032