|
Variable
|
Collapse group (n = 44)
|
Survival group (n = 129)
|
p value
|
|---|
|
Age (years)
|
43.3 ± 7.4
|
43.2 ± 8.7
|
0.965
|
|
Gender (male/female)
|
38/6
|
112/17
|
0.938
|
|
Body mass index (kg/m2)
|
24.5 ± 4.5
|
24 ± 3.7
|
0.512
|
|
Etiology
| | |
0.312
|
|
Alcohol abuse
|
31
|
82
| |
|
Corticosteroid use
|
8
|
19
| |
|
Idiopathic
|
5
|
28
| |
|
Ficat classification
| | |
0.741
|
|
Stage I
|
4
|
14
| |
|
Stage IIA
|
40
|
115
| |
|
ARCO classification
| | |
< .001
|
|
IA
|
2
|
6
| |
|
IB
|
2
|
7
| |
|
IC
|
0
|
1
| |
|
IIA
|
4
|
63
| |
|
IIB
|
10
|
41
| |
|
IIC
|
26
|
11
| |
|
Symptom
| | |
< .001
|
|
Acute onset of symptom
|
14
|
23
| |
|
Asymptomatic
|
24
|
79
| |
|
Delayed onset of symptom
|
6
|
27
| |
|
Necrotic location
| | |
< .001
|
|
A
|
1
|
22
| |
|
B
|
3
|
45
| |
|
C1
|
15
|
51
| |
|
C2
|
25
|
11
| |
|
Necrotic angle
| | |
< .001
|
|
< 200°
|
5
|
74
| |
|
200–249°
|
10
|
36
| |
|
250–299°
|
18
|
12
| |
|
> 299°
|
11
|
7
| |
|
BME before CD
| | |
< .001
|
|
No
|
29
|
116
| |
|
Yes
|
15
|
13
| |
|
Bone grafting (no. of hips)
| | |
0.542
|
|
No
|
25
|
80
| |
|
Yes
|
19
|
49
| |
|
Triglyceride
|
2.05 ± 1.16
|
1.95 ± 1.17
|
0.611
|
|
Total cholesterol
|
4.50 ± 0.80
|
4.66 ± 0.92
|
0.305
|
|
White blood cell
|
6.6 ± 2
|
6.7 ± 1.9
|
0.857
|
|
Hemoglobin
|
138.0 ± 12.1
|
140.0 ± 16.8
|
0.493
|
|
Platelet
|
188.8 ± 53.5
|
186.3 ± 49.9
|
0.787
|
|
Antithrombin III
|
93 ± 11.9
|
92.5 ± 10.7
|
0.789
|
- BME, bone marrow edema; CD, core decompression; ARCO, Association Research Circulation Osseous classification
