Table 2.
Correlations between aftersensation pain and variables of interest
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. Aftersensation 15 s | 1 | 0.842** | –0.154 | 0.238 | –0.061 | –0.038 | 0.309* | 0.164 | –0.064 | 0.486** | 0.422** |
| 2. Aftersensation 30 s | 0.842** | 1 | –0.219 | 0.223 | 0.064 | 0.119 | 0.260 | 0.227 | –0.099 | 0.439** | 0.358* |
| 3. History of chronic pain | –0.154 | –0.219 | 1 | 0.072 | –0.401* | –0.048 | –0.196 | 0.258 | 0.216 | 0.122 | –0.085 |
| 4. Presence of advanced cancer stage | 0.238 | 0.223 | 0.072 | 1 | 0.325* | 0.125 | 0.663** | –0.235 | 0.175 | 0.149 | 0.257 |
| 5. Presence of poor-prognosis cancer | –0.061 | 0.064 | –0.401* | 0.325* | 1 | 0.202 | 0.485** | –0.214 | 0.099 | –0.217 | –0.046 |
| 6. Receipt of highly invasive surgical procedure | –0.038 | 0.119 | –0.048 | 0.125 | 0.202 | 1 | –0.023 | –0.195 | 0.158 | 0.031 | –0.067 |
| 7. Recent receipt of chemotherapy | 0.309* | 0.260 | –0.196 | 0.663** | 0.485** | –0.023 | 1 | 0.005 | –0.019 | 0.049 | 0.069 |
| 8. Analgesic use immediately before QST | 0.164 | 0.227 | 0.258 | –0.235 | –0.214 | –0.195 | 0.005 | 1 | –0.200 | 0.164 | 0.033 |
| 9. Depressive symptoms | –0.064 | –0.099 | 0.216 | 0.175 | 0.099 | 0.158 | –0.019 | –0.200 | 1 | 0.282 | 0.230 |
| 10. MPQ Sensory | 0.486** | 0.439** | 0.122 | 0.149 | –0.217 | 0.031 | 0.049 | 0.164 | 0.282 | 1 | 0.368* |
| 11. PSQI Sleep Latency | 0.422** | 0.358* | –0.085 | 0.257 | –0.046 | –0.067 | 0.069 | 0.033 | 0.230 | 0.368* | 1 |
* P < 0.05; **P < 0.01.