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Table 2 Patient background and the classification of fracture type

From: Artificial intelligence improves the accuracy of residents in the diagnosis of hip fractures: a multicenter study

 

Gamagori City Hospital

Tsushima City Hospital

Nagoya Daini Red Cross Hospital

Overall

P-value

Mean age at time of injury (95% CI)

81.8 (70.4, 93.2)

81.4 (70.9, 91.9)

80.1 (67.6, 92.6)

81.1 (69.6, 92.6)

< 0.001*

Sex (male/female)

340/1156

287/829

566/1673

1193/3658

0.13

Fracture type

Garden (I,II/III,IV)

275/450

191/324

528/897

994/1671

< 0.001*

AO31- (A1/A2/A3)

489/253/54

383/185/48

509/322/76

1381/760/178

0.09

Greater trochanteric fracture

96

74

88

258

< 0.001*

Number of X-rays

1617

1205

2420

5242

 

Complications

Pathologic fractures due to tumors

3

2

7

12

0.80

Osteoarthritis of the hip

26

15

43

84

0.50

Hip implants on the opposite side

132

125

195

452

0.05

Spine implants

7

4

35

46

< 0.001*

Complicated pubic or sciatic fracture

23

17

53

93

0.12

  1. Age at injury and fracture type were evaluated for each fracture site when there were multiple images in bilateral cases
  2. 95%CI 95% confident intervals
  3. * P < 0.05