Table 2 Mean, S.D, Min, and Max questionnaires under study with its subscales
From: Factors affecting sleep quality in patients with type 2 diabetes: a cross-sectional study in Iran
Questionnaires | Number | Mean | S.Da | Minimum | Maximum |
|---|---|---|---|---|---|
Pittsburgh Sleep Quality Index (PSQI) | |||||
I Subjective sleep quality | 160 | 1.61 | 1.03 | 0 | 3 |
II Sleep latency | 160 | 1.59 | 1.29 | 0 | 3 |
III Sleep duration | 160 | 2.42 | 0.67 | 0 | 3 |
IV Habitual sleep efficiency | 160 | 2.14 | 1.08 | 0 | 3 |
V Sleep disturbances | 160 | 1.52 | 0.66 | 0 | 3 |
VI Use of sleeping medication | 160 | 0.57 | 1.10 | 0 | 3 |
VII Daytime dysfunction | 160 | 0.72 | 0.66 | 0 | 3 |
Global PSQI score | 160 | 10.59 | 3.55 | 3 | 18 |
Epworth sleep scale | 160 | 7.86 | 4.33 | 0 | 20 |
Beck’s depression inventory | 160 | 17.94 | 11.38 | 0 | 61 |