Table 4: Correlations between the PHQ-15 items with subscales of GHQ-28.
Items |
Somatic symptoms |
Anxiety and insomnia |
Social dysfunction |
Severe depression |
Total GHQ-28 |
PHQ1 Stomach pain |
0.352** |
0.313** |
0.209** |
0.210** |
0.339** |
PHQ2 Back pain |
0.344** |
0.300** |
0.235** |
0.204** |
0.339** |
PHQ3 Pain arm, legs |
0.343** |
0.280** |
0.271** |
0.207** |
0.345** |
PHQ4 Menstruation pain |
0.213** |
0.272** |
0.176** |
0.155** |
0.255** |
PHQ5 Headaches |
0.571** |
0.372** |
0.249** |
0.244** |
0.450** |
PHQ6 Chest pain |
0.431** |
0.383** |
0.336** |
0.384** |
0.472** |
PHQ7 Dizziness |
0.372** |
0.291** |
0.291** |
0.376** |
0.406** |
PHQ8 Fainting |
0.156** |
|
0.147** |
0.259** |
0.139** |
PHQ9 Heart race |
0.412** |
0.407** |
0.345** |
0.320** |
0.461** |
PHQ10 Short breath |
0.465** |
0.387** |
0.348** |
0.345** |
0.479** |
PHQ11 Pain sexual intercourse |
0.130** |
0.93* |
0.114* |
0.159** |
0.150** |
PHQ12 Constipation |
0.290** |
0.295** |
0.292** |
0.240** |
0.348** |
PHQ13 Nausea, gas |
0.357** |
0.298** |
0.288** |
0.311** |
0.385** |
PHQ14 Feeling tired |
0.512** |
0.550** |
0.445** |
0.310** |
0.572** |
PHQ15 Trouble sleep |
0.408** |
0.576** |
0.392** |
0.344** |
0.537** |
TOTAL PHQ-15 |
0.671** |
0.622** |
0.516** |
0.496** |
0.716** |
Note: *p < 0.05; **p < 0.001.