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Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 2 Type of fracture

From: Early mortality in hip fracture patients admitted during first wave of the COVID-19 pandemic in Northern Italy: a multicentre study

Injury information

C+ (n = 53)

Nr (%); CI95

C− (n = 424)

Nr (%)–CI95

p; Δm (CI95)

Type of proximal femur fracture, n (%)

 Pertrochanteric fracture (AO-31A.1/2)

22/53 (42%); 0.29–0.55

221/424 (52%); 0.47–0.57

1.53 CI 0.86–2.74

 Medial fracture (AO-31B + C)

29/53 (55%); 0.4–0.67

191/424 (45%); 0.40–0.50

0.68 CI 0.38–1.20

 Subtrochanteric fracture (AO-31A.3)

2/53 (4%); 0.01–0.13

12/424 (3%); 0.02–0.05

0.74 CI 0.16–3.41

  1. C+: patients with COVID-19; C−: control group; see definitions in Materials and methods. Δm = diffence of the means (mC+ -mC−). AO: Arbeitsgemeinschaft für Osteosynthesefragen
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