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Table 5 Predictors (categorical variables) of change in self-reported cold sensitivity (CISS; score range 4100) among patients with traumatic hand injuries

From: Self-reported cold sensitivity in patients with traumatic hand injuries or hand-arm vibration syndrome - an eight year follow up

Multiple and dichotomous predictors Change in total CISS score (4–100)
   n Md (q1, q3) p-value*
Gender Male 46 5 (−3, 16) 0.75
  Female 14 10 (−5, 14)
Smoking No 46 10 (−3, 17) 0.23
  Yes 14 2 (−4, 12)
Injured side Dominant 27 3 (−3, 13) 0.37
  Non dominant 31 9 (−3, 18)
  Bilateral 2 −15 (−45)
Injured digit(s) Single digit 17 6 (−5, 14) 0.918
  Multiple digits 17 9 (−3, 17)
Level of injury Distal to the MCP joint level 30 9 (−3, 16) 0.77
  Mid palm and dorsal hand 19 1 (−6, 17)
  Proximal hand 4 5 (−3, 22)
  Wrist and forearm 7 9 (1, 14)
Type of injury Sharp 32 3 (−3, 16) 0.63
  Laceration 20 10 (3, 15)
  Crush 8 7 (−11, 29)
Soft tissue damage No 33 3 (−6, 14) 0.06
  Yes 27 10 (2, 17)
Soft tissue repair None 8 8 (−15, 17) 0.37
  Skin suture 38 2 (−3, 15)
  Split skin 12 12 (7, 16)
  Flap 2 13 (2)
Bone injury No 30 2 (−5, 16) 0.19
  Yes 30 10 (−2, 16)
Osteosynthetic material None 37 2 (−3, 17) 0.53
Pins/Wire 13 10 (5, 16)
Screws or plate 10 12 (−6, 16)
Removal of osteo-synthetic material No 2 25 (11) 0.19
Yes 14 12 (9, 14)
Tendon injury No 20 3 (−2, 17) 0.97
  Yes 40 9 (−3, 15)
Vascular grafts No 49 3 (−3, 15) 0.16
  Yes 10 13 (7, 17)
Nerve injury No nerve injury 5 3 (−5, 18) 0.39
  Median nerve 10 −5 (−6, 13)
  Ulnar nerve 5 17 (9, 20)
  Median and ulnar or multiple nerves 3 −1 (−45)
  Radial nerve 5 9 (−11, 12)
  One digital nerve 5 14 (−2, 20)
  Two or multiple digital nerves or common digital nerve 26 10 (−3, 15)
Nerve injury Complete 46 8 (−3, 15) 0.26
  Partial 5 −3 (−6, 11)
  Contusion 6 20 (14, 31)
Repaired nerve No 36 8 (−3, 15) 0.83
  Yes 14 3 (−3, 14)
Revascularisation No 51 4 (−3, 15) 0.60
  Yes 9 12 (−6, 19)
Replantation No 48 4 (−3, 17) 0.88
  Yes 12 10 (−3, 13)
Post operative pain relief None 4 6 (−13, 10) 0.87
  Oral 25 9 (−3, 17)
  Injection 23 6 (2)
  1. *Mann–Whitney U-Test was used for dichotomous variables and Kruskal-Wallis was used for variables with multiple categories.