Skip to main content
. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: J Alzheimers Dis. 2020;75(2):471–482. doi: 10.3233/JAD-191122

Table 2:

Comparison of cosinor parameters between interventions and biofluid compartments for cortisol.

Dependent Variable Test Pairwise Comparison Estimate (95% CI) Estimated Difference (estimate, 95% CI) F (df) p-value
Amplitude (%)
Intervention CSF control vs. CSF SD CSF control: 54.35 (44.22 – 64.48)
CSF SD: 54.77 (44.64 – 64.90)
−0.42 (−12.8 – 12.0) 0.007 (1,6) 0.94
Intervention Plasma control vs. Plasma SD Plasma control: 50.82 (39.01 – 62.62)
Plasma SD: 51.96 (40.16 – 63.76)
−1.15 (−9.0 – 6.7) 0.15 (1,4) 0.71
Compartment CSF control vs. Plasma control CSF control: 55.35 (41.58 – 69.12)
Plasma control: 53.06 (39.29 – 66.83)
+2.30 (−3.6 – 8.2) 0.86 (1,7) 0.38
Compartment CSF SD vs. Plasma SD CSF SD: 56.36 (45.34 – 67.38)
Plasma SD: 53.93 (42.91 – 64.95)
+2.42 (−6.3 – 11.2) 0.43 (1,7) 0.53
Acrophase (hr)
Intervention CSF control vs. CSF SD CSF control: 2.05 (0.48 – 3.61)
CSF SD; 2.56 (0.99 – 4.12)
−0.51 (−1.7 – 0.7) 1.54 (1,4) 0.29
Intervention Plasma control vs. Plasma SD Plasma control: 0.57 (−0.83 – 1.97)
Plasma SD: −0.32 (−1.72 – 1.08)
+0.89 (−0.6 – 2.4) 2.82 (1,4) 0.17
Compartment CSF control vs. Plasma control CSF control: 2.75 (1.58 – 3.92)
Plasma control: 1.13 (−0.048 – 2.30)
+1.63 (0.8 – 2.5) 21.5 (1,7) 0.002
Compartment CSF SD vs. Plasma SD CSF SD: 2.00 (0.113.89)
Plasma SD: −0.75 (−2.641.14)
+2.75 (2.0 – 3.5) 70.6 (1,7) <0.0001
Mesor (%)
Intervention CSF control vs. CSF SD CSF control: 86.42 (67.18 – 105.66)
CSF SD: 93.36 (74.12 – 112.60)
−6.94 (−40.5 – 26.7) 0.21 (1,10) 0.66
Intervention Plasma control vs. Plasma SD Plasma control: 99.26 (87.95 – 110.56)
Plasma SD: 112.96 (101.66 – 124.26)
−13.70 (−32.1 – 4.7) 2.82 (1,9) 0.13
Compartment CSF control vs. Plasma control CSF control: 83.99 (69.77 – 98.20)
Plasma control: 99.50 (85.29 – 113.72)
−15.52 (−32.1 – 1.1) 4.90 (1,7) 0.06
Compartment CSF SD vs. Plasma SD CSF SD: 92.27 (72.88111.66)
Plasma SD: 112.10 (92.71131.49)
19.82 (−38.9 – −0.7) 6.02 (1,7) 0.04
Linear Rise (%/hr)
Intervention CSF control vs. CSF SD CSF control: 0.40 (−0.67 – 1.471)
CSF SD: 0.17 (−0.90 – 1.23)
+0.24 (−1.6 – 2.1) 0.08 (1,10) 0.78
Intervention Plasma control vs. Plasma SD Plasma control: −0.08 (−0.76 – 0.60)
Plasma SD: −0.64 (−1.32 – 0.04)
+0.57 (−0.5 – 1.6) 1.55 (1,9) 0.24
Compartment CSF control vs. Plasma control CSF control: 0.55 (−0.21 – 1.31)
Plasma control: −0.08 (−0.84 – 0.69)
+0.63 (−0.3 – 1.6) 2.57 (1,7) 0.15
Compartment CSF SD vs. Plasma SD CSF SD: 0.22 (−0.91 – 1.35)
Plasma SD: −0.64 (−1.76 – 0.49)
+0.85 (−0.1 – 1.8) 4.58 (1,7) 0.70

CI: confidence intervals; df: degrees of freedom; CSF: cerebrospinal fluid; SD: sleep deprivation; hr: hour