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Table 3 Demographic data for patients with AUBC

From: Active unicameral bone cysts: control firstly, cure secondly

Gender*
 M 17 (65%)
 F 9 (35%)
Age* 9.4 ± 3.0
Cyst length (cm)* 5.8 ± 1.8 (P = 0.032)
Epiphyseal length (cm)* 3.3 ± 1.0
The size of the cyst* 1.8 ± 0.5 (P = 0.044)
Cyst location
 Proximal humerus 14 (54%)
 Distal femur 2 (8%)
 Proximal tibia 4 (15%)
 Proximal femur 6 (23%)
Prior fracture* 8 (31%)
Duration of follow-up (months) 45.1 ± 19.7
Curative effect
 Healed 18 (70%)
 Healed with defects 5 (19%)
 Persistent cyst 2(8%)
Treatment times**
 One 20 (77%)
 Two 6(23%)
  1. *Gender, age, location and size of cyst, and pathological fracture had no correlation with the curative effect
  2. **Treatment times had a significant correlation with the length of the cyst (P = 0.032) and the size of the cyst (P = 0.044)