Figure 1From: Factor structure of the Hospital Anxiety and Depression Scale (HADS) in German coronary heart disease patients Standardised factor loadings and between-factor correlations of the Friedman et al. [33] model. Boxes represents HADS items labelled as shown as in table 2. Circles represents factors. One-way and two-way arrows indicate factor loadings and between-factor correlations, respectively.Back to article page