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Table 1 Mean (S.D) values on the GSQS after the first and last night of each study period and average score for each two-week period

From: Effect of simulated dawn on quality of sleep – a community-based trial

 

STUDY PERIOD (PERIODS WITH DAWN SIMULATION MARKED)

 

I

II

III

IV

 

FIRST

LAST

AVERAGE

FIRST

LAST

AVERAGE

FIRST

LAST

AVERAGE

FIRST

LAST

AVERAGE

GROUP 1 (N = 23)

4.4 (4.4)

3.4 (5.0)

3.8 (2.9)

3.0 (5.0)

2.4 (4.1)

3.2 (2.0)

2.3 (3.3)

3.3 (5.3)

2.9 (2.0)

3.4 (3.5)

4.8 (5.1)

4.2 (3.3)

GROUP 2 (N = 23)

4.7 (3.6)

2.7 (3.1)

3.7 (1.8)

2.5 (3.9)

2.1 (2.3)

3.0 (1.7)

3.2 (3.1)

1.7 (3.4)

2.7 (1.4)

5.7 (3.7)

1.1 (1.8)

2.9 (1.0)

GROUP 3 (N = 20)

5.7 (4.8)

4.8 (5.2)

3.9 (2.8)

2.6 (4.2)

3.2 (4.8)

2.8 (1.8)

3.4 (3.8)

2.6 (4.2)

2.4 (1.6)

4.7 (4.4)

2.4 (4.5)

2.7 (2.1)

GROUP 4 (N = 25)

5.4 (4.4)

5.0 (4.5)

5.0 (3.4)

2.0 (3.2)

3.8 (4.4)

3.0 (1.8)

4.0 (4.0)

2.6 (3.6)

3.5 (1.9)

3.5 (3.7)

1.9 (4.6)

2.8 (1.4)

  1. † AUTUMN GROUP (OCTOBER TO NOVEMBER) ‡ WINTER GROUP (JANUARY TO MARCH)