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. 2019 Jun 7;6:170. doi: 10.3389/fvets.2019.00170

Table 6.

Perceived Stress Scale 4.

PSS-4 (n = 21) Week 1 Week 2 Week 3 Week 4 Page's trend test
Before Intervention Mean 12.29 12.38 12.14 12.05 L = 538.5
z = 1.021
SD 2.171 1.465 2.220 1.936 p = 0.154

Higher values = more symptoms.