Table 3 Correlations among study variables (N = 494)
Variables | NPQ | SPADI pain subscale | SPADI disability subscale | IPAQ | PSQI | Health perception |
|---|---|---|---|---|---|---|
NPQ | – |  |  |  |  |  |
SPADI pain subscale | 0.418 (< 0.001) | – |  |  |  |  |
SPADI disability subscale | 0.404 (< 0.001) | 0.708 (< 0.001) | – |  |  |  |
IPAQ | 0.044 (0.329) | 0.041 (0.361) | 0.041 (0.386) | – |  |  |
PSQI | 0.253 (< 0.001) | 0.404 (0.004) | 0.301 (< 0.001) | 0.001 (0.977) | – |  |
Health perception | − 0.326 (< 0.001) | − 0.347 (< 0.001) | − 0.302 (< 0.001) | 0.057 (0.208) | − 0.369 (< 0.001) | – |