Table 4

Results of PCA using Varimax with Kaiser normalisation methodology (rotated component matrix)

AbrrDASS-21 itemsRotated factor loadings
DQ6I felt I wasn’t worth much as a person0.885−0.590.030
DQ5I was unable to become enthusiastic about anything0.8340.1490.132
DQ7I felt that life was meaningless0.7480.256−0.027
DQ1I couldn’t seem to experience any positive feeling at all0.7130.1810.463
DQ3I felt that I had nothing to look forward to0.6990.1930.453
DQ4I felt down-hearted and blue0.5920.2320.318
SQ6I was intolerant of anything that kept me from getting on with what I was doing0.5550.4470.465
AQ3I experienced trembling (eg, in the hands)0.0340.8950.019
AQ7I felt scared without any good reason0.2310.8690.056
AQ1I was aware of dryness of my mouth0.3060.7450.141
AQ2I experienced breathing difficulty−0.1410.6760.040
AQ6I was aware of the action of my heart in the absence of physical exertion0.2310.5710.343
DQ2I found it difficult to work up the initiative to do things0.4560.4940.269
SQ2I tended to over-react to situations0.2820.0940.769
AQ5I felt I was close to panic−0.1300.2310.732
SQ7I felt that I was rather touchy0.3690.1650.721
AQ4I was worried about situations in which I might panic and make a fool of myself0.3450.3510.649
SQ3I felt that I was using a lot of nervous energy0.4020.2330.621
SQ5I found it difficult to relax0.3520.3450.604
SQ1I found it hard to wind down0.2350.3330.578
SQ4I found myself getting agitated0.3860.4110.446
  • PCA, principal component analysis.