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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: J Pain Symptom Manage. 2011 May 12;42(5):691–701. doi: 10.1016/j.jpainsymman.2011.01.013

Table 2.

Item Statistics for the HADS-A Subscale

Total Sample (n = 193) HADS-A < 8 (n = 133) HADS-A ≥ 8 (n = 60)
Item M (SD) M (SD) M (SD)
1. I feel tense or wound up 0.88 (0.84) 0.53 (6.62) 1.65 (0.73)
3. I get a frightened feeling as if something awful is about to happen 0.80 (0.93) 0.40 (0.60) 1.69 (0.93)
5. Worrying thoughts go through my mind 1.03 (1.01) 0.59 (0.59) 2.02 (1.24)
7. I can sit at ease and feel relaxed 0.87 (0.87) 0.56 (0.70) 1.55 (0.83)
9. I get a sort of frightened feeling like “butterflies” in the stomach 0.54 (0.76) 0.29 (0.48) 1.08 (0.94)
11. I feel restless as if I have to be on the move 0.96 (0.97) 0.65 (0.81) 1.67 (0.94)
13. I get sudden feelings of panic 0.51 (0.71) 0.24 (0.44) 1.10 (0.83)