Table 2 Inter-item correlations of the PHQ-4 and inter-subscale correlations of the PHQ-4
From: Standardization of the Colombian version of the PHQ-4 in the general population
Correlation matrix of items | Correlation matrix of subscales | |||||||
|---|---|---|---|---|---|---|---|---|
Item | 1a | 2a | 3b | 4b | Subscale | Total score | Anxiety | Depression |
2 | .63*** | 1 | Total score | 1 | ||||
3 | .44*** | .59*** | 1 | Anxiety | .91*** | 1 | ||
4 | .54*** | .61*** | .68*** | 1 | Depression | .91*** | .66*** | 1 |