Authors, year (language) | Population | Sample size | Dimensionality | Internal consistency | Reliability | Validity | Responsiveness | |
---|---|---|---|---|---|---|---|---|
Distribution-based methods | Anchor-based methods | |||||||
White et al., 2004 (English) [81] | Chronic mechanical NP | 133 | – | – | Single items: ICC = .64–.99 | Pain: r = .73 VAS-P Other items: r = .60 NDI | – | – |
Kovacs et al, 2008 (Spanish) [82] | Acute, subacute and chronic NP | 167 | – | Pain: α = .73 Disability: α = .84 | ICC = .85 (95 % CI .75–.91) | rp = .61 VAS-P rp = .46 VAS-referred P rp = .57 CSQ rp = .69 NDI rp = .71 NPQ rp = -.60 SF-12 PF | Pain: ES = .79 Disability ES = .92 | – |
Miekisiak et al, 2014 (Polish) [83] | NP >4 weeks | 123 | 1 factor | – | ICC = .88 (95 % CI .82–.92) | rs = .62 NDI | MDC = 2/10 points SEM = .7/10 points | – |
Monticone et al, 2014 (Italian) [22] | Chronic NP >3 months | 103 | – | – | ICC = .87 (95 % CI .81–.91) | Pain: rp = .45 NRS Pain: rp = .48 NPDS Function: rp = .49–.55 NPDS QoL: rp = -.44 EQ-5D Disability: rp = .45–.48 NPDS | MDC = 1.8/10 points SEM = .65/10 points SRM = 1.23 | AUC: .73 (.62–.85) (Sens = .55; Spec = .88) |