Table 2.
Comparison of study data and model predictions for the urinary aMT6s acrophase. aMT6s was measured during the diurnal (day and evening shifts) and nocturnal (night shifts) schedules. The rows include mean and standard deviation (std) of error and absolute error and the percentage of individual predictions that fall within plus minus one hour of the study data
| Diurnal (N = 20) |
Nocturnal (N = 17) |
Phase change (N = 16) |
||
|---|---|---|---|---|
| Study data | Mean acrophase ± SD (h) | 3.86 ± 1.35 | 4.78 ± 1.77 | −1.15 ± 1.83 |
| Shift | Mean acrophase ± SD (h) Mean error ± SD /9h) Mean absolute error ± SD (h) Percent within ± 1 h |
4.88 ± 0.32 −1.02 ± 1.27 1.26 ± 1.02 50 % |
7.73 ± 2.45 −2.95 ± 3.04 3.01 ± 2.98 29 % |
−1.63 ± 5.38 −0.48 ± 5.24 3.05 ± 4.22 31% |
| Shift + Light | Mean acrophase ± SD (h) Mean error ± SD (h) Mean absolute error ± SD (h) Percent within ± 1 h |
4.37 ± 0.39 −0.51 ± 1.16 0.90 ± 0.88 65 % |
5.29 ± 0.51 −0.51 ± 1.89 1.55 ± 1.13 35 % |
−0.95 ± 0.80 0.20 ± 1.75 1.31 ± 1.13 50% |
| Shift + Commute | Mean acrophase ± SD (h) Mean error ± SD (h) Mean absolute error ± SD (h) Percent within ± 1 h |
4.51 ± 0.66 −0.65 ± 1.27 1.10 ± 0.89 50 % |
6.04 ± 2.49 −1.26 ± 2.85 2.21 ± 2.14 35 % |
−1.82 ± 2.30 −0.67 ± 2.55 1.91 ± 1.76 44% |
| Shift + Commute + Light | Mean acrophase ± SD (h) Mean error ± SD (h) Mean absolute error ± SD (h) Percent within ± 1 h |
4.22 ± 0.46 −0.36 ± 1.16 0.87 ± 0.83 65 % |
4.74 ±0.63 0.04 ± 1.89 1.42 ± 1.19 47 % |
−0.55 ± 0.82 0.61 ± 1.61 1.38 ± 0.97 50% |
| Sleep | Mean acrophase ± SD (h) Mean error ± SD (h) Mean absolute error ± SD (h) Percent within ± 1 h |
4.70 ± 0.36 −0.85 ± 1.28 1.15 ± 1.00 55 % |
5.95 ± 1.65 −1.17 ± 2.02 1.45 ± 1.82 53 % |
−1.50 ± 1.40 −0.35 ± 1.88 1.35 ± 1.31 50% |
| Sleep + Light | Mean acrophase ± SD (h) Mean error ± SD (h) Mean absolute error ± SD (h) Percent within ± 1 h |
4.39 ± 0.42 −0.53 ± 1.17 0.96 ± 0.84 65 % |
4.78 ± 1.77 0.01 ± 1.88 1.41 ± 1.19 53 % |
−0.46 ± 0.86 0.69 ± 1.64 1.41 ± 1.05 44% |