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Table 1 Subject demographics and fracture characteristics (n = 152)

From: Morphological characteristics of femoral neck fractures in young and middle-aged population: a retrospective descriptive study

Variables

Value

Patient demographics

 Age (yrs, range)

48 ± 10.9(18—59)

 Sex (Male n, %)

78 (51.3%)

 Side (Left n, %)

73 (48%)

 BMI (Kg/m2, range)

22.8 ± 3.4 (15.0—33.8)

 Underweight (< 18.5, %)

13 (8.7%)

 Normal (18.5 ― 24.9, %)

101 (67.8%)

 Overweight (25 ― 29.9, %)

32 (21.5%)

 Obesity (> 30, %)

3 (2.0%)

 NSA (, range)

139.5 ± 6.3 (125.5—161.8)

Fracture characteristics

 Anatomical classification (n, %)

  Subcapital

23 (15.1%)

  Transcervical

125 (82.3%)

  Basicervical

4 (2.6%)

  MPA (°, range)

49.8 ± 10.6 (25.6 ― 76.0)

 Pauwels classification (n, %) ― (°, range)

  Type I

8 (5.3%)

27.8 ± 1.9 (25.6—30.0)

  Type II

60 (39.5%)

42.1 ± 5.4 (30.5—49.9)

  Type III

84 (55.2%)

57.3 ± 6.0 (50.1—76.0)

  VNA (°, range)

9.0 ± 12.1 (-24.8 ― 38.1)

 VN classification (n, %) ― (°, range)

  Type I

35 (23.0%)

-7.2 ± 5.9 (-24.8—0.02)

  Type II

42 (27.6%)

4.9 ± 2.8 (0.2—9.3)

  Type III

28 (18.4%)

12.4 ± 1.6 (10.0—14.6)

  Type IV

47 (31.0%)

22.6 ± 6.0 (15.1—38.1)

  AMA (°, range)

93.1 ± 13.7 (46.6 ― 130.5)

AMA groups (n, %) ― (°, range)

 Group I

34 (22.4%)

75.2 ± 9.5 (46.6—84.6)

 Group II

54 (35.5%)

90.3 ± 3.0 (85.0—95.0)

 Group III

64 (42.1%)

105.0 ± 8.5 (95.2—130.5)

 Cortex comminution in coronal plane (n, %)

114 (75%)

Location (n, %) ― Length (mm, range)

 Superior

64 (56.1%)

11.2 ± 4.1 (2.56—22)

 Inferior

92 (80.7%)

13.2 ± 5.4 (3.96—27.9)

 Cortex comminution in axial plane (n, %)

120 (78.9%)

Location (n, %) ― Length (mm, range)

 Anterior

49 (40.8%)

10.1 ± 4.7 (4.16—28.7)

 Posterior

104 (86.7%)

13.8 ± 4.5 (1.63—28.5)

 Intraosseous defects (n, %)

79 (52.0%)

  1. BMI Body mass index, three patients' BMI was lost. NSA Neck-shaft angle, MPA Modified Pauwels angle, VNA Angle of vertical of the neck axis, AMA Anteromedial angle. Continuous variables with normal distribution were presented as mean ± SD (range). Categorical variables were shown as number and percentages (%)