Table 2

Actigraphic data on sleep and the rest-activity cycles from spring 2006 (before versus after DST transition).

SPRING

Mean/before

95% confidence interval/before

Standard deviation/before

Mean/after

95% confidence interval/after

Standard deviation/after


Sleep efficiency (%)

87.29

83.26 – 91.23

4.82

83.78

76.51 – 91.06

8.70

0.161

Movement and fragmentation index

20.93

15.82 – 26.05

6.12

28.68

18.82 – 38.55

11.80

0.019

Relative amplitude

0.94

0.92 – 0.96

0.03

0.91

0.88 – 0.95

0.05

0.140

Intra-daily stability

0.64

0.53 – 0.76

0.15

0.62

0.49 – 0.75

0.17

0.313

Intra-daily variability

0.92

0.76 – 1.10

0.20

0.84

0.66 – 1.02

0.24

0.354


Lahti et al. BMC Physiology 2008 8:3   doi:10.1186/1472-6793-8-3

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