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. Author manuscript; available in PMC: 2021 Jul 1.
Published in final edited form as: J Am Coll Health. 2019 Mar 11;68(5):550–556. doi: 10.1080/07448481.2019.1583652

Table 2.

Means and Standard Deviations for Components of PSQI

Mean Std. Dev.
Subjective Sleep Quality 1.225 0.600
Sleep Latency 1.333 0.662
Sleep Duration 1.284 0.973
Sleep Efficiency 0.567 0.839
Sleep Disturbance 1.183 0.455
Use of Sleep Medication 0.437 0.863
Daytime Dysfunction 1.078 0.773

Note. Scores range from 0–3 with higher scores representing worse sleep quality.