Table 1

Actigraphic data on sleep and the rest-activity cycles from fall 2005 (before versus after DST transition).

FALL
Mean/before
95% confidence interval/before
Standard deviation/before
Mean/after
95% confidence interval/after
Standard deviation/after
Significance

Sleep efficiency (%)
86.33
80.80 – 91.87
6.62
79.76
74.79 – 84.72
5.94
0.006
Movement and fragmentation index
23.13
16.50 – 29.75
7.92
35.66
26.02 – 43.30
9.14
0.003
Relative amplitude
0.93
0.90 – 0.96
0.36
0.85
0.74 – 0.96
0.14
0.055
Intra-daily stability
0.58
0.47 – 0.70
0.15
0.57
0.42 – 0.72
0.19
0.880
Intra-daily variability
0.83
0.73 – 0.93
0.13
0.82
0.67 – 0.97
0.19
0.857

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