Table 2

Changes due to transition into DST among short- and long-sleepers

Variable
Mean
SD
P value

Short sleepers
IS
-0.01
0.08
0.07
IV
-0.14
0.12
0.04
RA
+0.02
0.02
0.3
tau
+1.00
16.12
0.4
Long sleepers
IS
-0.15
0.12
0.08
IV
+0.13
0.21
0.05
RA
-0.01
0.01
0.5
tau
+10.60
16.12
0.4

Abbreviations: SD = standard deviation, IS = intra-daily stability, IV = intra-daily variability, RA = relative amplitude, tau = circadian period.

Lahti et al. Journal of Circadian Rhythms 2006 4:1   doi:10.1186/1740-3391-4-1