Skip to main content

Table 5 Test-retest reliability for the seven PSQI components and the PSQI global score (bold text) (N = 64 cases)

From: Exploration of dimensionality and psychometric properties of the Pittsburgh Sleep Quality Index in cases with temporomandibular disorders

PSQI component ICC (95% CI) Mean of the differences (95% CI) Limits of agreement p value for Pitman’s Test
Subjective sleep quality 0.76 (0.66 to 0.86) -0.06 (-0.19 to 0.07) -1.12 to 1.00 0.775
Sleep latency 0.77 (0.68 to 0.87) 0.09 (-0.06 to 0.25) -1.18 to 1.36 0.740
Sleep duration 0.73 (0.62 to 0.84) 0.03 (-0.12 to 0.18) -1.15 to 1.21 0.214
Habitual sleep efficiency 0.57 (0.40 to 0.73) -0.08 (-0.38 to 0.22) -2.50 to 2.35 0.535
Sleep disturbances 0.69 (0.57 to 0.82) 0.05 (-0.07 to 0.17) -0.92 to 1.02 0.992
Use of sleep medication 0.91 (0.87 to 0.95) 0.09 (-0.03 to 0.22) -0.90 to 1.08 0.358
Daytime dysfunction 0.60 (0.44 to 0.75) 0.00 (-0.16 to 0.16) -1.28 to 1.28 0.356
PSQI global score 0.86 (0.80 to 0.92) 0.12 (-0.37 to 0.62) -3.83 to 4.08 0.679