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Table 2 Mean BPI-SFa by KPS

From: Patient-reported pain and other quality of life domains as prognostic factors for survival in a phase III clinical trial of patients with advanced breast cancer

KPS BPI-SF – Pain Interference BPI-SF – Worst Pain
  n Mean (SD) n Mean (SD)
Overallb 281 2.2 (2.63) 278 3.2 (3.03)
≤70 23 4.6 (3.67) 23 4.6 (3.60)
80 51 2.8 (2.75) 49 4.1 (2.82)
90 100 1.9 (2.38) 100 3.3 (2.88)
100 107 1.6 (2.19) 106 2.5 (2.94)
   p < 0.0001c   p = 0.0030c
  1. BPI-SF Brief Pain Inventory-Short Form, KPS Karnofsky Performance Status, SD standard deviation
  2. aBPI-SF item scores range from 0 (no pain or interference with daily living) to 10
  3. bOverall patient numbers < 286 because not all answered every BPI-SF item c P-values derived from one-way analysis of variance