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Table 3 Analysis of factors associated with Cole grading after surgery for unstable pelvic fractures

From: Analysis of risk factors affecting the prognosis of external fixation in the treatment of unstable pelvic fractures in children: a retrospective study of 96 patients

Projects

Cole rating

R value

P value

Months of age (m)

0.497

0.001**

Male/Female

-0.117

0.444

Height (cm)

0.119

0.437

Weight (kg)

0.138

0.366

BMI (kg·m− 2)

0.054

0.726

Cause of injury

-0.268

0.075*

Associated injuries

0.305

0.042*

STAMP score

-0.068

0.658

ASA level

0.249

0.100

Operation time (min)

0.143

0.348

Intraoperative blood loss (ml)

-0.002

0.992

Tile classification (B\C)

0.533

< 0.001**

Tile classification (subtype)

0.237

0.117

Y cartilage closure

0.478

0.001*

Risser sign

0.305

0.042*

Post-op

  

 Pelvic asymmetry

0.276

0.067*

 Pelvic deformity index

0.282

0.060*

 Displacement value (mm)

0.319

0.032*

Post-op

  

Matta reduction radiographic criteria

0.579

< 0.001**

 Pelvic asymmetry

0.446

0.012*

 Pelvic deformity index

0.356

0.016*

 Displacement value (mm)

0.672

< 0.001**

 Hospital days

0.239

0.180

Complications

0.207

0.172

Fracture healing time (w)

-0.054

0.723

Final follow-up WeeFIM scores

0.453

0.002*

  1. BMI = body mass index; ASA = American Society of Anaesthesiologists; STAMP = Screening Tool for Assessment of Malnutrition in Paediatrics; WeeFIM = Functional Independence Measure scores
  2. * Moderately relevant
  3. **Strong relevant