表 3.

组别 Group	BMC (mg)				SMI				Tb.N (mm)
	坏死区 Necrotic region	硬化区 Sclerotic region	正常区 Healthy region		坏死区 Necrotic region	硬化区 Sclerotic region	正常区 Healthy region		坏死区 Necrotic region	硬化区 Sclerotic region	正常区 Healthy region
激素性 ONFH Steroid-induced ONFH	3.62±0.30	10.66±0.64	6.15±0.44		2.91±0.06	0.88±0.08	1.69±0.05		0.82±0.04	3.15±0.08	1.73±0.03
酒精性 ONFH Alcohol-induced ONFH	4.69±0.45	12.50±0.44	6.21±0.66		2.67±0.06	0.69±0.07	1.72±0.05		1.04±0.03	3.58±0.33	1.75±0.04
统计值 Statistic	t=–6.853 P= 0.000	t=–8.207 P= 0.000	t=–0.262 P= 0.797		t=8.176 P=0.000	t=–5.215 P= 0.000	t=–1.444 P= 0.168		t=–15.242 P= 0.000	t=–4.387 P= 0.002	t=–1.386 P= 0.185