The Pittsburgh Sleep Quality Index: Reliability, Factor Structure, and Related Clinical Factors among Children, Adolescents, and Young Adults with Chronic Pain
Table 4
Descriptive statistics of patient characteristics.
Patient characteristics
Total patient sample
PSQI global score
Significance ( value)
Demographics
Age, years
15.27 (2.11)
—
<.001
Gender, (%)
—
.248
Female
391 (81.12)
7.80 (3.84)
Male
91 (18.88)
7.12 (3.68)
Outcome measures
FDI total score
15.95 (10.35)
—
<.001
RCADS total internalization -score
49.18 (13.92)
—
<.001
Pain intensity
3.74 (2.72)
—
<.001
Duration of chronic pain, (%)
.905
3-6 months
44 (9.12)
8.11 (3.62)
6-12 months
84 (17.43)
7.26 (3.74)
>12 months
354 (73.44)
7.71 (3.86)
Painful episode duration, (%)
.021
Constant pain
209 (52.78)
7.77 (3.73)
Intermittent pain
187 (47.22)
6.95 (3.26)
Reported pain during movement, (%)
.009
Reported no pain during movement
45 (11.39)
6.09 (2.69)
Reported pain during movement
350 (88.61)
7.54 (3.60)
Number of pain sites, (%)
<.001
One pain site
218 (46.68)
6.83 (3.32)
More than one pain site
249 (53.32)
8.33 (4.03)
Pittsburgh Sleep Quality Index, Functional Disability Inventory, and Revised Children’s Anxiety and Depression Scale. Data are presented as in parenthesis unless otherwise stated.
