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Table 3 Barrow Neurological Institute pain intensity score at baseline and at two-year assessment

From: Favourable prognosis of trigeminal neuralgia when enrolled in a multidisciplinary management program - a two-year prospective real-life study

Score Pain description Initial assessment N (%) Two-year assessment N (%) Median change of BNI p-value#
BNI 0 No medication needed at the time of assessment 16 (16) * 29 (28) ** 0 0.25
BNI I Very good effect: No pain 17 (17) 28 (27) 0 0.30
BNI II Good effect: occasional pain that does not, or only occasionally, reduce my quality of life 20 (19) 28 (27) - 1 0.078
BNI III Limited effect: Daily pain with a moderate reduction of my quality of life 35 (34) 13 (13) - 1 < 0.001
BNI IV Insufficient effect: Daily episodes with severe pain which significantly reduce my quality of life 15 (15) 5 (5) −2 < 0.001
  1. N = 103. BNI = Barrow Neurological Institute pain intensity score. # Wilcoxon Signed Rank test. *Two patients were in remission (no pain) while 18 were reporting pain on the VNRS (not pain-free). ** Nineteen patients were in remission (no pain) while 10 were reporting pain on the VNRS (not pain-free). Thirty-seven patients (36%) reported unchanged BNI level, while 14 (14%) patients had a worsening in BNI over the two-year follow-up period. P < 0.05 was considered significant