Table 2.

Description of main study variables

Variables	n (%)/$\overline{x}\pm \text{SD}$	Range
Self-care	6.9 ± 1.5	2.5–10
Sleep quality (PSQI global score)	7.0 ± 3.7	2–20
Sleep disturbance (PSQI global > 5)	35 (54.7)
Objective sleepa
Total sleep time (min)	394.6 ± 70.4	250.5–572.4
Sleep efficiency (%)	80.9 ± 8.1	58.5–94.4
Sleep onset latency (min)	7.3 ± 3.0	4–20.2
Wake after sleep onset (min)	87.6 ± 43.5	21.6–239
Number of awakenings	18.7 ± 7.2	6.9–34.4
Self-efficacy	4.1 ± 0.8	2.3–5
Diabetes distress	2.0 ± 1.0	1–4.7
Fatigue	1.6 ± 1.2	0–4.3
Daytime sleepiness	8.7 ± 4.5	0–24

^aN = 57