Younger group

Senior group

Total minutes scored as awake (TMSA) (min)

27.4 ± 18.2

41.8 ± 28.8

**

Total sleep time (TST) (min)

388.7 ± 69.0

375.0 ± 61.3

n.s.

Wake after sleep on set (WASO) (min)

20.1 ± 17.1

32.0 ± 26.1

**

Sleep efficiency (SE) (%)

95.1 ± 3.9

92.3 ± 5.3

**

Sleep on set latency (SOL) (min)

6.3 ± 4.8

7.5 ± 10.3

n.s.

Activity mean score (AMS) (counts/min)

12.0 ± 3.9

16.8 ± 7.4

**

Activity index (ACTX) (%)

24.4 ± 5.8

35.4 ± 12.9

**

Sleep fragmentation Index (SFX)

2.6 ± 1.4

2.9 ± 1.7

n.s.

Wake episodes (WEP) (counts)

10.1 ± 5.2

10.2 ± 4.4

n.s.

Long wake episodes (LWEP) (counts)

1.9 ± 1.4

2.6 ± 1.3

*