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. 2021 Sep 27;18(19):10142. doi: 10.3390/ijerph181910142

Table 1.

Item loadings on corresponding factors as revealed by exploratory factor analysis of the Depression Anxiety Stress Scale 21 (DASS-21) in the quarantine sample.

Items Extracted Factors
Factor 1 Factor 2 Factor 3 Factor 4
1 I found it hard to wind down 0.242 0.178 0.206 0.616
2 I was aware of dryness of my mouth 0.573 0.182 0.149 0.136
3 I couldn’t seem to experience any positive feeling at all 0.265 0.278 0.365 0.284
4 I experienced breathing difficulty (e.g., excessively rapid breathing, breathlessness in the absence of physical exertion) 0.451 0.162 0.285 0.078
5 I found it difficult to work up the initiative to do things 0.246 0.206 0.474 0.022
6 I tended to over-react to situations 0.251 0.587 0.194 0.141
7 I experienced trembling (e.g., in the hands) 0.584 0.320 0.121 0.225
8 I felt that I was using a lot of nervous energy 0.257 0.659 0.270 0.439
9 I was worried about situations in which I might panic and make a fool of myself 0.345 0.695 0.160 0.179
10 I felt that I had nothing to look forward to 0.124 0.244 0.604 0.205
11 I found myself getting agitated 0.348 0.552 0.390 0.427
12 I found it difficult to relax 0.250 0.364 0.258 0.800
13 I felt down-hearted and blue 0.293 0.531 0.531 0.194
14 I was intolerant of anything that kept me from getting on with what I was doing 0.100 0.496 0.465 0.315
15 I felt I was close to panic 0.745 0.331 0.181 0.292
16 I was unable to become enthusiastic about anything 0.342 0.166 0.701 0.267
17 I felt I wasn’t worth much as a person 0.364 0.156 0.555 0.257
18 I felt that I was rather touchy 0.298 0.562 0.389 0.151
19 I was aware of the action of my heart in the absence of physical exertion (e.g., sense of heart rate increase, heart missing a beat) 0.624 0.092 0.312 0.092
20 I felt scared without any good reason 0.699 0.296 0.234 0.223
21 I felt that life was meaningless 0.548 0.257 0.461 0.160

Values in boldface represent significant loadings.