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Table 4 Psychometric properties of the neck bournemouth questionnaire

From: Patient-reported outcome measures for non-specific neck pain validated in the Italian-language: a systematic review

Authors, year (language) Population Sample size Dimensionality Internal consistency Reliability Validity Responsiveness
Distribution-based methods Anchor-based methods
Bolton & Humphreys, 2002 (English) [76] NP 102 α = .87–.92 ICC = .65 r = .50–.71 NDI r = .44–.63 CNFDS ES = 1.67 SRM = 1.43
Bolton, 2004 (English) [80] NP 71 ES = 1.67 SRM = 1.01 RCI (>1.96) = 13 points
Gay et al, 2007 (English) [59] Chronic NP > 3 months 23 α = .85–.89 r = .77–.80 NDI r = .37–.62 VAS-P ES = 1.28 SRM = 1.17
Martel et al, 2009 (French) [77] Chronic NP 68 r = .97 (95 % CI95–.98) ICC = .97 (95 % CI.95–.98) r = .61–.67 NDI ES = .56 SRM = .61 RCI (>1.96) = 4.4 points
Soklic et al, 2012 (German) [78] NP 102 α = .79–.82 ICC = .99 (95 % CI.98–.99) r = .68–.76 NDI r = .69–.80 NPDS SRM = .73–1.20
Geri et al, 2014 (Italian) [23] Chronic NP >3 months 96 2 factors: pain & functioning (F#1); anxiety & depression (F#2) Total score: α = .89 (95 % CI.84–.92) F#1: α = .88 (95 % CI.83–.92) F#2:α = .90 (95 % CI.86–.94) r = .67–.70 NPDS r = .63–.73 NRS MCID = 5.5 points AUC = .72 (Sens. 75 %; Spec. 60 %)
Geri et al, 2015 (Italian) [79] Chronic NP 161 2 factors: pain & functioning (F#1); anxiety & depression (F#2) PSI (F#1) = .80 PSI (F#2) = .77
  1. α Cronbach’s alpha, AUC area under the curve, CI confidence interval, CNFDS copenhagen neck functional disability scale, ES effect size, ICC intraclass correlation coefficient, MCID minimal clinically important difference, NDI neck disability index, NP neck pain, NPDS neck pain and disability scale, NRS numerical rating scale, PSI person separation index, r correlation coefficient, RCI reliable change index, Sens sensibility, Spec specificity, SRM standardized response mean, VAS-P visual analogue scale for pain