Table 4.
Effect estimates (95% confidence intervals) from linear mixed effects models of total path length, N = 46.
| Eyes open | Model 1a | Model 2b | Model 3c |
|---|---|---|---|
| Intercept | 25.34 (−10.07, 60.74) | 24.60 (−7.31, 56.50) | 33.77 (−3.86, 71.40) |
| WBGTmax | −0.01 (−1.35, 1.34) | −0.56 (−1.85, 0.73) | −0.90 (−2.40, 0.59) |
| Pre-shift total path length (ms) | 0.26 (0.04, 0.49) | 0.29 (0.06, 0.51) | 0.29 (0.05, 0.54) |
| Shift duration (hrs) | – | 2.08 (−0.29, 4.46) | 2.43 (−0.60 5.47) |
| Age | – | – | −0.08 (−0.34, 0.18) |
| Gender (ref: male) | |||
| Female | – | – | −3.27 (−14.52, 7.97) |
| Body mass index (kg/m2) | – | – | 0.03 (−0.77, 0.83) |
|
| |||
| Eyes closed | Model 1a | Model 2b | Model 3c |
|
| |||
| Intercept | 17.62 (−22.73, 57.98) | 6.60 (−34.16, 47.37) | −9.27 (−66.73, 48.18) |
| WBGTmax | 0.54 (−1.00, 2.09) | 0.25 (−1.39, 1.90) | 0.41 (−1.89, 2.71) |
| Pre-shift total path length (ms) | 0.37 (0.15, 0.59) | 0.36 (0.15, 0.57) | 0.36 (0.13, 0.60) |
| Shift duration (hrs) | – | 2.81 (−0.57, 6.19) | 2.33 (–2.18, 6.84) |
| Age | – | – | 0.05 (−0.33, 0.42) |
| Gender (ref: male) | |||
| Female | – | – | 2.96 (−14.37, 20.30) |
| Body mass index (kg/m2) | – | – | 0.45 (−0.68, 1.59) |
a
Adjusted for pre-shift total path length.
b
Adjusted for pre-shift total path length and shift duration.
c
Adjusted for pre-shift total path length, shift duration, age, gender, and body mass index.