Table III.

Test–retest reliability of psychosocial factors.

	Test session 1 Mean (SD)	Test session 2 Mean (SD)	ICC (95% CI)
Quality of life, SF12
Physical health sub-scale sum score	41.89 (5.5)	41.44 (5.4)	0.77 (0.65–0.85)
Mental health sub-scale sum score	50.83 (8.5)	50.83 (9.6)	0.89 (0.84–0.93)
Hospital Anxiety and Depression Scale (HADS)
HADS-A sum; anxiety	3.63 (3.7)	3.30 (3.9)	0.92 (0.88–0.95)
HADS-D sum; depression	2.96 (2.9)	3.01 (3.5)	0.94 (0.91–0.96)
HADS-T sum; total score	6.59 (6.1)	6.32 (6.8)	0.95 (0.93–0.97)
Ruminative Response Scale (RRS)
RRS sum score	29.47 (9.3)	29.29 (11.2)	0.88 (0.81–0.92)
Penn State Worry Questionnaire (PSWQ)
PSWQ sum score	35.0 (12.2)	34.6 (12.8)	0.91 (0.86–0.94)
Type D personality (DS-14)
Social inhibition sum score	7.55 (5.5)	7.32 (5.5)	0.90 (0.85–0.94)
Negative affectivity sum score	5.76 (5.5)	5.40 (5.7)	0.91 (0.86–0.94)
Brief Illness Perception Questionnaire (BIPQ)
BIPQ sum score	25.9 (12.3)	25.8 (13.1)	0.91 (0.86–0.94)
Perceived risk perception (PRP), Likert scale 0–10
PRP 1	2.1 (2.1)	2.7 (2.4)	0.59 (0.39–0.73)
PRP 2	6.9 (2.5)	6.9 (2.6)	0.67 (0.50–0.78)
PRP 3	2.3 (2.3)	2.6 (2.5)	0.74 (0.60–0.82)
Bergen insomnia scale
Insomnia sum score	11.2 (10.3)	10.7 (10.5)	0.92 (0.88–0.95)

SD: standard deviation; CI: confidence interval; ICC: intraclass correlation coefficient; CI: confidence interval.