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Table 3 Sleep and questionniare summary descriptive data

From: A description of sleep behaviour in healthy late pregnancy, and the accuracy of self-reports

Variable

Video

Questionnaire

Number who slept on left side of bed

23/30

-

Number where the bed partner was present

16/30

-

Sleep onset position

 Left

20/30

21/30

 Right

8/30

4/30

 Supine

2/30

4/30

 Don’t know

-

3/30

Wake position

 Left

15/30

8/30

 Right

11/30

11/30

 Supine

 Prone

4/30

-

4/30

1/30

 Don’t know

-

6/30

Times out of bed

1 (0 – 6)

1 (0 – 6)

Total time out of bed (minutes)

2.5 (0 – 21.3)

-

Study duration (hours)

8.6 (6.8 - 9.8)

-

Estimated sleep duration (hours)

8.2 (6.6 – 9.5)

7.0 (4.0 – 9.5)

Estimated sleep latency (minutes)

11.4 (4.5 – 50.6)

20.0 (1.0 – 60.0)

Total time in each position (hours)

  

 Left

4.3 (0.45 - 7.7)

-

 Right

2.0 (0–5.7)

-

 Supine

1.6 (0–11)

-

Total time in each position (% of sleep study time)

  

 Left

49 % (5–90 %)

-

 Right

26 % (0–67 %)

-

 Supine

19 % (0–75 %)

-

Average time spent in position before changing (minutes)

  

 Left

34.8 (3.2 – 55.2)

-

 Right

39.4 (0 – 58.6)

-

 Supine

14.8 (0 – 50.0)

-

Number of times in each position

  

 Left

4.5 (1 – 10)

-

 Right

3 (0 – 7)

-

 Supine

3 (0 – 11)

-

Number of position changes

8 (1–22)

 

Leg twitches during the sleep study?

  

 Yes

-

4/30

 No

-

13/30

 DK

-

13/30

Number of participants that reported difficulty falling asleep

-

22/30

Number of participants that reported difficulty getting back to sleep after waking

-

13/30

Overall self-reported sleep quality in questionnaire

  

 “Very bad”

-

0/30

 “Fairly good”

-

8/30

 “Average”

-

16/30

 “Fairly bad”

-

6/30

 “Very good”

-

0/30

Reported restlessness in questionnaire

  

 “Not at all”

-

2/30

 “A little”

-

7/30

 “Average”

-

14/30

 “More than average”

-

6/30

 “Very restless”

-

1/30

  1. Data presented as number of participants out of sample of 30 participants, or as Median (Range)