Circadian Sleep-Activity Rhythm across Ages in Down Syndrome
Abstract
:1. Introduction
2. Materials and Methods
2.1. Participants
2.2. Sleep Data
2.3. Behavioral Data
2.4. Cognitive Data
2.5. Statistical Analyses
3. Results
3.1. Sleep and Phase Timing
3.2. Stability and Robustness of Circadian Markers
3.3. Parent-Reported Sleep Data
3.4. Cognitive Outcomes in Participants with DS
4. Discussion
4.1. Sleep and Phase Timing
4.2. Stability and Robustness of Circadian Markers
4.3. Parent-Reported Sleep Health
4.4. Executive Function Measures
4.5. Memory Measures
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Age, Group | Total (Females) | Mean Ages (Mean Female Ages) |
---|---|---|
Children with DS | 20 (8) | 7.95 ± 1.16 (7.75 ± 1.32) |
Children, TD | 20 (10) | 7.53 ± 1.15 (7.27 ± 0.84) |
Teenagers with DS | 28 (16) | 15.11 ± 2.21 (15.59 ± 2.02) |
Teenagers, TD | 13 (5) | 14.84 ± 2.12 (16.51 ± 1.74) |
Adults with DS | 10 (3) | 22.76 ± 2.02 (24.42 ± 2.22) |
Adults, TD | 10 (6) | 21.94 ± 1.17 (22.07 ± 1.38) |
Measures | Children, DS n = 20 | Children, TD n = 20 | Adolescents, DS n = 28 | Adolescents, TD n = 13 | Adults, DS n = 10 | Adults, TD n = 10 | F, Age F, Group F, Interaction | p, Age p, Group p, Interaction | p, Corrected, Age p, Corrected, Group p, Corrected, Interaction |
---|---|---|---|---|---|---|---|---|---|
TST | 469.37 (51.59) | 482.40 (40.43) | 438.32 (53.40) | 439.61 (66.73) | 398.61 (55.83) | 376.12 (51.49) | F = 19.02 F = 0.81 F = 0.47 | 1.13 × 10−7 *** ns ns | 2.71 × 10−6 *** ns ns |
SE | 83.85 (5.05) | 89.32 (2.68) | 85.98 (3.37) | 89.63 (2.62) | 83.73 (6.67) | 87.36 (3.52) | F = 2.19 F = 24.72 F=0.60 | ns 2.94 × 10−6 *** ns | ns 5.58 × 10−5 *** ns |
WASO | 83.18 (24.93) | 53.23 (13.01) | 64.74 (16.80) | 46.86 (18.91) | 69.11 (34.71) | 41.27 (10.96) | F = 5.81 F = 38.13 F = 0.25 | 4.17 × 10−3 ** 1.63 × 10−8 *** ns | 0.03 * 4.07 × 10−7 *** ns |
Onsets | 6.69 (0.60) | 7.014 (1.140) | 6.59 (1.08) | 7.57 (1.21) | 7.19 (1.24) | 7.80 (2.97) | F = 5.92 F = 14.92 F = 2.11 | 3.8 × 10−3 ** 2.1 × 10−4 *** ns | 0.03 * 3.32 × 10−3 ** ns |
Offsets | 20.76 (0.77) | 20.48 (0.96) | 20.92 (1.21) | 22.23 (1.59) | 21.83 (1.47) | 22.40 (3.53) | χ2 = 16.03 χ2 = 2.00 | 3.3 × 10−4 *** ns | 4.95 × 10−3 ** ns |
Acrophase | 13.62 (0.87) | 13.59 (0.83) | 14.16 (1.04) | 14.88 (1.54) | 14.30 (1.30) | 15.82 (1.80) | F = 16.74 F = 14.04 F = 5.23 | 5.57 × 10−7 *** 3.3 × 10−4 *** 5.82 × 10−3 ** | 1.23 × 10−5 *** 4.95 × 10−3 ** 0.03 * |
IS | 0.80 (0.09) | 0.71 (0.08) | 0.71 (0.09) | 0.58 (0.17) | 0.60 (0.14) | 0.59 (0.11) | F = 15.71 F = 9.53 F = 2.30 | 1.32 × 10−6 *** 2.66 × 10−3 ** ns | 2.78 × 10−5 *** 2.66 × 10−2 * ns |
IV | 0.53 (0.141) | 0.64 (0.14) | 0.72 (0.19) | 0.85 (0.22) | 0.81 (0.26) | 0.77 (0.22) | F = 14.90 F = 3.41 F = 0.96 | 2.44 × 10−6 *** ns ns | 4.89 × 10−5 *** ns ns |
FFT | 0.31 (0.07) | 0.27 (0.06) | 0.22 (0.06) | 0.14 (0.06) | 0.23 (0.17) | 0.15 (0.040) | χ2 = 29.10 χ2 = 6.52 | 4.79 × 10−7 *** 0.01069 | 1.10 × 10−5 *** 0.034 * ns |
L5 | 22.53 (10.93) | 13.76 (5.02) | 17.64 (6.08) | 14.94 (14.89) | 23.00 (15.30) | 18.53 (10.72) | F = 1.90 F = 8.26 F = 0.75 | ns 5.01 × 10−3 ** ns | ns 0.034 * ns |
M10 | 614.73 (171.56) | 687.0 (107.28) | 403.75 (110.36) | 376.74 (138.78) | 363.89 (122.82) | 376.69 (62.81) | F = 49.83 F = 0.42 F = 1.88 | 1.77 × 10−15 *** ns ns | 4.59 × 10−14 *** ns ns |
CSHQ Measures | Children, DS n = 20 | Children, TD n = 20 | Teens, DS n = 28 | Teens, TD n = 13 | Adults, DS n = 10 | χ2 or F, Age χ2 or F, Group | p, Age p, Group | p, Corrected, Age p, Corrected, Group |
---|---|---|---|---|---|---|---|---|
Bedtime Resistance | 8.05 (3.52) | 7.35 (2.41) | 8.96 (3.72) | 6.25 (0.62) | 13 (1.32) | χ2 = 15.75 χ2 = 9.36 | 3.80 × 10−4 2.21 × 10−3 | 4.95 × 10−3 ** 0.02 * |
Sleep Onset Delay | 1.25 (0.64) | 1.2 (0.41) | 1.32 (0.7) | 1.42 (0.52) | 1.11 (0.33) | χ2 = 1.76 χ2 = 0.89 | ns ns | ns ns |
Sleep Duration | 4.2 (1.51) | 3.7 (1.42) | 4.79 (1.83) | 4.08 (1.8) | 7 (0.5) | χ2 = 19.64 χ2 = 7.09 | 5.45 × 10−5 7.75 × 10−3 | 9.81 × 10−4 *** 0.03 * |
Sleep Anxiety | 5.75 (1.89) | 5.15 (2.01) | 5.61 (1.99) | 4 (0.43) | 4.67 (0.71) | χ2 = 1.1 χ2 = 7.18 | ns 7.39 × 10−3 | ns 0.03 * |
Night Wakings | 5.2 (2.12) | 4.05 (1.15) | 4.07 (1.63) | 3.54 (0.66) | 3.22 (0.67) | χ2 = 10.78 χ2 = 0.004 | 4.57 × 10−3 ns | 0.03 * ns |
Parasomnias | 9.2 (2.19) | 8.75 (1.94) | 9.11 (2.27) | 8.08 (1.38) | 7.67 (1.00) | F = 2.24 F = 2.01 | ns ns | ns ns |
Sleep Disordered Breathing | 4.7 (2.23) | 3.25 (0.55) | 4.64 (2.57) | 3.08 (0.28) | 3.78 (1.09) | χ2 = 0.16 χ2 = 14.40 | ns 1.48 × 10−4 | ns 2.52 × 10−3 ** |
Daytime Sleepiness | 12.8 (7.76) | 11.3 (2.87) | 13.36 (2.83) | 11.58 (2.81) | 13.11 (1.76) | χ2 = 6.83 χ2 = 4.88 | 3.29 × 10−2 2.72 × 10−2 | ns ns |
CSHQ Total | 46.15 (6.54) | 42.15 (7.37) | 13.36 (2.83) | 40.54 (4.68) | 48.22 (2.99) | F = 0.14 F = 10.91 | ns 1.41 × 10−3 | ns 0.02 * |
Executive, Cognitive Outcomes | Model F Statistic | Degrees of Freedom | Interdaily Stability (IS) p Value | Sleep Efficiency (SE) p Value | Age p Value | Gender p Value | IS × Age Interaction p Value | Model Multiple R2 | Significant p Values, Corrected |
---|---|---|---|---|---|---|---|---|---|
Reaction Time | 5.363 | 6.32 | 0.00278 ** | 0.693734 | 0.03137 * | 0.808016 | 0.02159 * | 0.5014 | IS: 0.011 * Age: 0.043 * Is × Age: ns |
BRIEF | 0.198 | 6.45 | 0.3658 | 0.7704 | 0.5104 | 0.7697 | 0.487 | 0.02152 | ns |
Verbal Recall | 4.557 | 4.28 | 0.00274 ** | 0.22320 | 0.95120 | 0.59583 | na | 0.3943 | IS: 0.014 * |
Object-Context Binding | 6.939 | 5.48 | 0.22554 | 0.48540 | 0.00112 ** | 0.03389 * | na | 0.4195 | Age 6.72 × 10−3 ** |
Spatial Recall | 5.228 | 5.32 | 0.1266 | 0.6160 | 0.0272 * | 0.5816 | na | 0.4496 | ns |
Scene Recall | 3.142 | 5.33 | 0.0078 ** | 0.2005 | 0.9070 | 0.3846 | na | 0.3225 | IS: 0.03 * |
Visual Recall | 3.868 | 5.51 | 0.1183 | 0.6864 | 0.0616 | 0.6172 | 0.101 | 0.275 | ns |
KBIT-II Verbal | 0.138 | 4.52 | 0.542 | 0.713 | 0.992 | 0.783 | na | 0.01697 | ns |
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Lovos, A.; Bottrill, K.; Sakhon, S.; Nyhuis, C.; Egleson, E.; Luongo, A.; Murphy, M.; Thurman, A.J.; Abbeduto, L.; Lee, N.R.; et al. Circadian Sleep-Activity Rhythm across Ages in Down Syndrome. Brain Sci. 2021, 11, 1403. https://doi.org/10.3390/brainsci11111403
Lovos A, Bottrill K, Sakhon S, Nyhuis C, Egleson E, Luongo A, Murphy M, Thurman AJ, Abbeduto L, Lee NR, et al. Circadian Sleep-Activity Rhythm across Ages in Down Syndrome. Brain Sciences. 2021; 11(11):1403. https://doi.org/10.3390/brainsci11111403
Chicago/Turabian StyleLovos, Annalysa, Kenneth Bottrill, Stella Sakhon, Casandra Nyhuis, Elizabeth Egleson, Alison Luongo, Melanie Murphy, Angela John Thurman, Leonard Abbeduto, Nancy Raitano Lee, and et al. 2021. "Circadian Sleep-Activity Rhythm across Ages in Down Syndrome" Brain Sciences 11, no. 11: 1403. https://doi.org/10.3390/brainsci11111403