Skip to main content
. 2021 Feb 25;12:18. doi: 10.1186/s13229-021-00426-w

Table 5.

Relative risk statistics, with 99.99% confidence intervals for the prevalence of sleep disorders in each syndrome in comparison to all other syndromes

Sleep related breathing difficulties Excessive daytime sleepiness Sleep enuresis Sleep bruxism ‘General’ sleep difficulty
Angelman / − 0.32 (0.16–0.63) [SMS] + 7.22 (2.63–19.86) [PWS] /

+ 3.18 (1.72–5.90) [JS]

+ 2.12 (1.30–3.45) [WS]

+ 2.06 (1.28–3.32) [PWS]

+ 2.00 (1.25–3.20) [FXS]

CHARGE + 6.67 (1.85–24.08) [NF] / / / /
Cornelia de Lange

− 0.30 (0.17–0.54) [MPSII]

− 0.32 (0.18–0.58) [MPSIV]

− 0.43 (0.23–0.82) [Hurler]

− 0.33 (0.17–0.65) [SMS]  / / /
Down

+ 5.33 (1.44–19.72) [NF]

− 0.42 (0.26–0.67) [MPSII]

− 0.44 (0.27–0.73) [MPSIV]

− 0.42 (0.23–0.75) [SMS] / + 3.00 (1.12–8.04) [WS] /
Fragile X / / + 4.22 (1.46–12.21) [PWS] /

− 0.37 (0.24–0.57) [SMS]

− 0.42 (0.27–0.66) [MPSIIIB]

− 0.48 (0.30–0.76) [Rett]

− 0.50 (0.31–0.80) [AS]

− 0.54 (0.33–0.87) [Hurler]

Hurler

+ 8.83 (2.50–31.18) [NF]

− 0.69 (0.49–0.96) [MPSII]

− 0.74 (0.52–1.04) [MPSIV]

/ / /

+ 2.95 (1.58–5.53) [JS]

+ 1.97 (1.20–3.24) [WS]

+ 1.91 (1.17–3.11) [PWS]

+ 1.86 (1.15–3.00) [FXS]

Jacobsen / / / /

− 0.23 (0.13–0.42) [SMS]

− 0.27 (0.15–0.48) [MPSIIIB]

− 0.30 (0.16–0.56) [Rett]

− 0.31 (0.17–0.58) [AS]

− 0.34 (0.18–0.63) [Hurler]

MPS II

+ 12.83 (3.72–44.29) [NF]

+ 3.35 (1.85–6.05) [CdLs]

+ 2.41 (1.49–3.90) [DS]

/ / / /
MPS IIIB / / / /

+ 3.77 (2.07–6.88) [JS]

+ 2.52 (1.58–4.00) [WS]

+ 2.44 (1.55–3.84) [PWS]

+ 2.37 (1.52–3.70) [FXS]

+ 1.84 (1.27–2.67) [TSC]

MPS IV

+ 12.00 (3.47–41.56) [NF]

+ 3.13 (1.72–5.70) [CdLs]

+ 2.25 (1.38–3.68) [DS]

/ / / /
Neurofibromatosis

− 0.08 (0.02–0.27) [MPSII]

− 0.08 (0.02–0.29) [MPSIV]

− 0.10 (0.03–0.37) [Hurler]

− 0.13 (0.04–0.45) [WS]

− 0.14 (0.04–0.50) [PWS]

− 0.15 (0.04–0.54) [CHARGE]

− 0.19 (0.05–0.69) [DS]

/  / / /
Prader–Willi + 7.17 (2.00–25.72) [NF] /

− 0.14 (0.05–0.38) [AS]

− 0.24 (0.08–0.69) [FXS]

/

− 0.36 (0.23–0.55) [SMS]

− 0.41 (0.26–0.65) [MPSIIIB]

− 0.47 (0.29–0.75) [Rett]

− 0.49 (0.30–0.78) [AS]

− 0.52 (0.32–0.85) [Hurler]

Rett / / / /

+ 3.32 (1.80–6.13) [JS]

+ 2.21 (1.37–3.58) [WS]

+ 2.15 (1.34–3.44) [PWS]

+ 2.09 (1.31–3.31) [FXS]

Smith–Magenis /

+ 3.16 (1.59–6.29) [AS]

+ 3.00 (1.54–5.86) [CdLs]

+ 2.40 (1.33–4.35) [DS]

/ /

+ 4.32 (2.40–7.77) [JS]

+ 2.88 (1.84–4.50) [WS]

+ 2.79 (1.80–4.33) [PWS]

+ 2.71 (1.77–4.17) [FXS]

+ 2.11 (1.49–3.00) [TSC]

Tuberous Sclerosis Complex / / / /

− 0.47 (0.33–0.67) [SMS]

− 0.54 (0.37–0.79) [MPSIIIB]

Williams + 7.83 (2.20–27.90) [NF] / / − 0.33 (0.12–0.89) [DS]

− 0.35 (0.22–0.54) [SMS]

− 0.40 (0.25–0.63) [MPSIIIB]

− 0.45 (0.28–0.73) [Rett]

− 0.51 (0.31–0.83) [Hurler]

− 0.57 (0.29–0.77) [AS]

+ sleep disorder is significantly more prevalent than in one other syndrome; − sleep disorder is significantly less prevalent than in one other syndrome. / sleep disorder not assessed in that syndrome, or no difference in relative risk. There were no differences between syndromes in relative risk for insomnia