Table 7 Spearman Correlation Coefficients between NDI, COM, NPQ, VAS, CSQ, and SF-12 (Day 1).
From: Psychometric characteristics of the Spanish version of instruments to measure neck pain disability
VAS (referred pain) | CSQ | NDI | NPQ | Physical Component Summary (PCS-12) | Mental Component Summary (MCS-12) | COM | |
|---|---|---|---|---|---|---|---|
VAS (NP) | 0.485 | 0.403 | 0.480 | 0.471 | -0.246 | -0.221 | 0.356 |
P | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.001 | 0.000 |
N | 221 | 218 | 221 | 221 | 215 | 215 | 217 |
VAS (referred pain) | 0.392 | 0.358 | 0.442 | -0.431 | -0.081 | 0.459 | |
P | 0.000 | 0.000 | 0.000 | 0.000 | 0.238 | 0.000 | |
N | 218 | 221 | 221 | 215 | 215 | 217 | |
CSQ | 0.482 | 0.452 | -0.302 | -0.369 | 0.369 | ||
P | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||
N | 218 | 218 | 214 | 214 | 214 | ||
NDI | 0.844 | -0.404 | -0.498 | 0.610 | |||
P | 0.000 | 0.000 | 0.000 | 0.000 | |||
N | 221 | 215 | 215 | 217 | |||
NPQ | -0.458 | -0.402 | 0.628 | ||||
P | 0.000 | 0.000 | 0.000 | ||||
N | 215 | 215 | 217 | ||||
Physical Component Summary (PCS-12) | -0.118 | -0.477 | |||||
P | 0.085 | 0.000 | |||||
N | 215 | 212 | |||||
Mental Component Summary (MCS-12) | -0.379 | ||||||
P | 0.000 | ||||||
N | 212 |