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Table 3 Internal consistency reliability and test-retest reliability (Intraclass correlation coefficients and 95 % confidence intervals) of KPPS-BG

From: Translation, adaptation and validation of the Bulgarian version of the King’s Parkinson’s Disease Pain Scale

Items of
KPPS-BG
Item-total correlations
(IT-TC) (n = 129)
Cronbach’s α if item deleted ICCs (CI)
(n = 43)elet
1. Pain around joints (musculoskeletal) 0.46 0.75 0.84 (0.67–0.90)
2. Pain related to internal organ 0.31 0.72 0.78 (0.62–0.88)
3. Generalised non-specific pain in the stomach area 0.21 0.74 0.84 (0.66–0.89)
4. Pain deep within the body 0.38 0.75 0.97 (0.92–0.99)
5. Dyskinetic pain 0.68 0.73 1 (1–1)
6. Painful muscle cramps in a specific area during “off” periods 0.41 0.73 0.94 (0.85–0.91)
7. Generalized “off” period pain 0.49 0.79 0.85 (0.72–0.91)
8. PLM or RLS-associated pain 0.52 0.77 0.97 (0.87–0.99)
9. Pain while turning in bed 0.71 0.73 0.95 (0.91–0.98)
10. Pain when chewing 0.64 0.71 1 (1–1)
11. Pain due to grinding teeth 0.46 0.75 0.98 (0.96–0.99)
12. Burning sensation in the mouth 0.15 0.74 0.80 (0.61–0.87)
13. Burning pain in the limbs 0.66 0.73 0.98 (0.93–0.99)
14. Shooting pain/pins & needles 0.72 0.71 0.97 (0.91–0.99)
  1. KPPS-BG Bulgarian version of the King’s Parkinson’s Disease Pain Scale; PLM periodic limb movements; RLS restless legs syndrome