Table 2 Comparing weekly average sleep patterns per night between patients with AN and HC

Sleep onset (hh:mm)

00:19 (2:07)

22:43– 03:44

00:33 (1:38)

23:16–02:15

0.903

0.02

Sleep offset (hh:mm)

07:59 (2:05)

06:13–13:37

08:16 (1:16)

06:26–10:57

0.981

< 0.01

Total sleep time (min)

409 (68)

309–502

425 (64)

357–523

0.752

0.05

Sleep efficiency (%)

85 (6)

76–92

85 (7)

75–90

0.181

0.20

Wake after sleep onset (WASO, min)

33 (14)

10–58

42 (18)

27–69

0.006

0.14

Mid-sleep awakenings lasting ≥ 5 min (frequency)

0.93 (1.00)^a

0–2

0.50 (1.00)^b

0–2

0.062

0.29

Mid-sleep awakenings lasting ≥ 5 min (duration, minutes)

9 (32)^a

5–174

6 (1)^b

5–38

0.006

0.42