Table 1.

Pittsburgh Sleep Quality Index (PSQI) Mean Scores at Each Timepoint

Variable	Six Weeks (n = 130)	Seven Months (n = 122)
Global	7.11 (2.84)	5.53 (3.09)
Duration	1.02 (0.98)	0.66 (0.88)
Disturbance	1.12 (0.50)	1.02 (0.48)
Latency	0.79 (0.85)	0.73 (0.91)
Daytime Dysfunction	1.15 (0.85)	0.87 (0.75)
Efficiency	1.55 (1.14)	0.82 (0.99)
Quality	1.30 (0.67)	1.22 (0.74)
Medication Use	0.17 (0.59)	0.22 (0.65)

Higher scores represent worsening sleep. Standard deviations are in parentheses