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Table 1 Actigraphic data on sleep and the rest-activity cycles from fall 2005 (before versus after DST transition).

From: Transitions into and out of daylight saving time compromise sleep and the rest-activity cycles

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