Table 4.
Correlation between the PSQI global score and clinical parameters of the study groups
| Control group | NCBP group | |||
|---|---|---|---|---|
| r | p | r | p | |
| Age | 0.075 | 0.627* | − 0.216 | 0.020* |
| BMI | − 0.161 | 0.297* | 0.144 | 0.124* |
| HADs-total | − 0.082 | 0.596¶ | 0.550 | < 0.001¶ |
| HADs-anxiety | 0.074 | 0.634¶ | 0.566 | < 0.001¶ |
| HADs-depression | − 0.168 | 0.275¶ | 0.417 | < 0.001¶ |
| McGill Pain Questionnaire | ||||
| Sensory dimension | 0.295 | 0.001¶ | ||
| Affective dimension | 0.275 | 0.003¶ | ||
| Total breast pain score | 0.308 | 0.001¶ | ||
| VAS-pain | 0.660 | < 0.001¶ | ||
| PPI | 0.516 | < 0.001¶ | ||
| Nottingham Health Profile Part 1 | 0.563 | < 0.001¶ | 0.635 | < 0.001¶ |
| Physical mobility | 0.599 | < 0.001¶ | 0.522 | < 0.001¶ |
| Pain | − 0.263 | 0.084¶ | 0.534 | < 0.001¶ |
| Sleep | 0.483 | 0.001¶ | 0.417 | < 0.001¶ |
| Energy | 0.650 | < 0.001¶ | 0.405 | < 0.001¶ |
| Social isolation | 0.387 | 0.010¶ | 0.428 | < 0.001¶ |
| Emotional reactions | 0.073 | 0.640¶ | 0.449 | < 0.001¶ |
| Nottingham Health Profile Part 2 | 0.292 | 0.054¶ | 0.533 | < 0.001¶ |
BMI, body mass index; PSQI, Pittsburgh Sleep Quality Index; HADs, Hospital Anxiety and Depression Scale; VAS, visual analog scale; PPI, present pain intensity
*Pearson’s correlation analysis; ¶ Spearman’s correlation analysis; r correlation coefficient. Statistically significant at p < 0.05. Statistically significant differences are indicated in bold