Table 2 Univariate analysis of prognostic factors for clinical success rate
| Â | Total | Success | Failure | P value |
|---|---|---|---|---|
Treatment | Â | Â | Â | 0.024 |
 SIM | 32 | 27 (84) | 5 (16) | |
 MD | 26 | 15 (58) | 11 (42) | |
Age (years) | Â | Â | Â | 0.443 |
  < 40 | 17 | 14 (82) | 3 (18) | |
  > 40 | 41 | 28 (68) | 13 (32) | |
Sex | Â | Â | Â | 0.955 |
 Men | 42 | 31 (74) | 11 (26) | |
 Women | 16 | 11 (69) | 5 (31) | |
BMI (kg/m2) | Â | Â | Â | 0.019 |
  < 25 | 29 | 25 (86) | 4 (14) | |
  ≥ 25 | 29 | 17 (59) | 12 (41) | |
Duration of symptoms (months) | Â | Â | Â | 0.951 |
  < 3 | 25 | 18 (72) | 7 (28) | |
  > 3 | 33 | 24 (73) | 9 (27) | |
Laterality | Â | Â | Â | 1.000 |
 Unilateral | 14 | 10 (71) | 4 (29) | |
 Bilateral | 44 | 32 (73) | 12 (27) | |
Cause of ANFH | Â | Â | Â | 0.764a |
 Steroids | 6 | 5 (83) | 1 (17) | |
 Alcohol | 24 | 18 (75) | 6 (25) | |
 Idiopathic | 28 | 19 (68) | 9 (32) | |
ARCO stage | Â | Â | Â | 0.001 |
 I, II a, II b | 24 | 23 (96) | 1 (4) | |
 II c,III a | 34 | 19 (56) | 15 (44) | |
Lesion size | Â | Â | Â | 0.007a |
 Small + Medium | 21 | 21 (100) | 0 (0) | |
 Large | 37 | 21 (57) | 16 (43) | |
Lesion location | Â | Â | Â | 0.029 |
 A, B | 28 | 24 (86) | 4 (14) | |
 C1, C2 | 30 | 18 (60) | 12 (40) | |
Hydrarthrosis | Â | Â | Â | 0.031 |
 Yes | 20 | 11 (55) | 9 (45) | |
 No | 38 | 31 (82) | 7 (18) |