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. 2005 Nov 9;5:41. doi: 10.1186/1471-244X-5-41

Table 8.

Acrophase Changes (Minutes) by Light Condition and Treatment Timing: Mean (SD) N

Acrophase Difference (minutes) Baseline minus Final Morning Evening

Bright Dim Bright Dim
Illumination 80.69 (69.14) 9 1.53 (39.72) 14 -41.99 (63.48) 11 -28.77 (56.96) 7
Activity 25.84 (40.35) 8 -32.42 (60.00) 13 -0.96 (34.46) 11 -40.88 (48.03) 7
Sleep 39.59 (34.81) 9 -25.90 (42.96) 12 -3.80 (34.74) 11 -24.86 (48.32) 7

ANOVA Sig. (p) Illumination Activity Sleep

Treatment Condition 0.485 0.003 0.001
Treatment Time 0.001 0.485 0.243
Condition by Time 0.001 0.128 0.054

Note: Positive change is earlier, negative change is later, at the end of treatment.