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Table 1 Main clinical characteristics of patients included in the study.

From: Psychometric validation of the Portuguese version of the Neuropathic Pain Symptoms Inventory

Clinical and demographic data  
   Age 52.6 ± 14.9 (27-84)
   Sex (women/men) 37/57
   Mean duration of pain (months) 51.7 ± 21.4 (6-120)
   Mean pain intensity (VAS) 6.7 ± 2.0 (4-10)
   Mean MQS 10.1 ± 5.3 (1.0-25.0)
Aetiology of neuropathic pain  
   Nerve trauma 15 (15.9%)
   Post herpetic neuralgia 20 (21.3%)
   Diabetic polyneuropathy 6 (6.4%)
   Non-diabetic polyneuropathy 5 (5.3%)
   Post-stroke pain 4 (4.2%)
   Spinal cord trauma 9 (9.5%)
   Plexus avulsion 19 (20.2%)
   Trigeminal neuralgia 4 (4.25%)
   Syringomyelia 2 (2.1%)
   Leprosy associated neuropathic pain 10 (10.6%)
Medication use  
   Medication Quantification Score 10.14 ± 5.96
  1. Results are expressed in average ± standard deviation (range).