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Table 1 Descriptive statistics of the Pittsburgh Sleep Quality Index: Confirmatory factory analysis sub-sample in the collegiate young adults

From: Dimensionality of the Pittsburgh Sleep Quality Index in the young collegiate adults

Pittsburgh Sleep Quality Index (PSQI) components

Mean ± SD

Skewness ± SE

Kurtosis ± SE

PSQI component of sleep duration

1.04 ± 0.935

0.566 ± 0.168

−0.568 ± 0.335

PSQI component of sleep disturbances

1.14 ± 0.527

0.550 ± 0.168

1.412 ± 0.335

PSQI component of sleep latency

1.18 ± 0.947

0.325 ± 0.168

−0.842 ± 0.335

PSQI component of daytime dysfunction

0.88 ± 0.820

0.700 ± 0.168

−0.018 ± 0.335

PSQI component of sleep efficiency

0.17 ± 0.496

3.437 ± 0.168

12.871 ± 0.335

PSQI component of overall sleep quality

0.99 ± 0.676

0.678 ± 0.168

1.262 ± 0.335

PSQI component of sleep medication

0.08 ± 0.385

5.871 ± 0.168

37.154 ± 0.335

Multivariate

  

59.182 ± 1.527

  1. SD standard deviation, SE standard error