Skip to main content

Advertisement

Table 4 Median (interquartile range) sleep subscale scores, proportions of children with severe sleep problems and statistical comparisons

From: A cross-syndrome cohort comparison of sleep disturbance in children with Smith-Magenis syndrome, Angelman syndrome, autism spectrum disorder and tuberous sclerosis complex

  ASa SMS TSC ASD TD Kruskal-Wallis comparison Between group comparison corrected to p < .01
df χ 2 P
Sleep anxiety 11.50
(8.75–13.00)
9.00
(7.25–13.00)
13.00
(9.00–14.50)
10.00
(8.00–13.00)
3 2.90 .408
Bedtime resistance 10.00
(7.00–13.00)
14.00
(9.00–16.00)
11.00
(10.0–16.75)
15.00
(9.00–18.00)
11.00
(8.00–14.00)
4 12.85 .012 ASD > AS
Sleep onset latency 2.00
(2.00–3.00)
2.00
(1.00–2.00)
2.50
(2.00–3.00)
3.00
(3.00–5.00)
2.00
(1.00–3.00)
4 36.16 < .001 ASD > SMS, AS, TSC, TD
Night waking 7.00
(5.00–8.00)
7.00
(7.00–8.00)
6.00
(3.25–8.00)
7.00
(4.00–9.00)
3.00
(2.00–5.00)
4 51.72 < .001 ASD, SMS, AS, TSC > TD
Sleep-disordered breathing 9.00
(6.00–11.00)
11.50
(9.00–16.00)
5.00
(5.00–10.75)
7.00
(5.00–11.00)
5.00
(5.00–8.00)
4 40.32 < .001 SMS > ASD, AS, TSC, TD
AS > TD
Parasomnia 19.00
(15.00–23.00)
21.50
(18.50–26.75)
19.50
(15.00–23.25)
22.00
(16.00–27.50)
14.50
(11.75–18.00)
4 40.23 < .001 SMS, AS, ASD, TSC > TD
Daytime sleepiness 6.00
(4.00–7.00)
6.00
(6.00–9.00)
6.00
(2.00–6.00)
6.00
(2.00–6.25)
2.00
(2.00–3.00)
4 54.89 < .001 SMS > ASD, TSC, TD
AS, ASD, TSC > TD
Drowsy during the day 2.00
(1.00–3.00)b
4.50
(3.00–5.00)
1.00
(1.00–2.75)
1.00
(1.00–3.00)
1.00
(1.00–1.00)
4 62.80 < .001 SMS > AS, ASD, TSC, TD
AS, ASD, TSC > TD
Co-sleeping 1.5 (1.00–5.00) 1.00 (1.00–4.50) 2.5 (1.00–5.00) 1.00 (1.00–5.00) 1.00 (1.00–2.00) 4 10.58 .032 TSC > TD
Severe night waking (%) 45.70 80.80 45.0 43.30 4.30 4 44.37 < .001 SMS > AS, ASD, TD
TSC, AS, ASD > TD
Severe early morning waking (%) 18.60 73.10 15.0 23.30 2.10 4 50.95 < .001 SMS > TSC, AS, ASD, TD
AS, ASD > TD
Severe settling (%) 4.30 7.70 15.0 30.0 4.30 4 18.56 .001 ASD > AS, TD
  1. aThere were no significant differences on any of the MSPSQ subscales between the AS genetic subtypes
  2. bCo-sleeping item was not administered to 40 children with AS, n = 30 for this item