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Table 1 Baseline patient characteristics

From: Outcome after protected full weightbearing treatment in an orthopedic device in diabetic neuropathic arthropathy (Charcot arthropathy): a comparison of unilaterally and bilaterally affected patients

Characteristic Number
Patients (n = 90)
 Age at initial diagnosis (years), mean ± SD 60.7 ± 10.6
 Follow up period (years), mean ± SD 3.7 ± 3.8
 Gender, female/male, n 22/68
 Bilateral patients (n = 11) gender: female/male, n 6/5
Comorbidity, n (%)a
 • Diabetes 90 (100)
 • Peripheral vascular diseaseb 14 (16)
 • Obesity (BMI > 25 kg/m2) 12 (13)
Affected feet (n = 101)
 Female/male, n 28/73
 Left/right (in unilaterally affected patients, n = 79), n 39/40
Location of CNc (n = 101 ft)
 Zone 1 (distal and proximal interphalangeal joints, metatarsophalangeal joints) 10 unilateral, 2 bilateral
 Zone 2 (tarsometatarsal joints (Lisfranc) 25 unilateral, 10 bilateral
 Zone 3 (naviculo-cuneiform joints, talonavicular joint; cacaneocuboid joint) 8 unilateral, 5 bilateral
 Zone 4 (ankle joint, subtalar joint) 3 unilateral, 0 bilateral
 Zone 5 (calcaneus) 2 unilateral, 0 bilateral
 Zones 1 + 2 6 unilateral, 0 bilateral
 Zones 2 + 3 1 unilateral, 0 bilateral
 Zones 2 + 4 19 unilateral, 5 bilateral
 Zones 3 + 4 3 unilateral, 0 bilateral
 Zones 4 + 5 2 unilateral, 0 bilateral
  1. BMI body mass index
  2. aSome patients had multiple comorbidities
  3. bConfirmed with ankle-brachial index (ABI) <0.9
  4. cBased on Sanders and Frykberg Anatomic Classification [26]