Baseline (B) | Sound reflecting (SR) | Sound absorbing (SA) | F value | B-SR Post hoc p | B-SA Post hoc p | SR-SA Post hoc p | ||
---|---|---|---|---|---|---|---|---|
Results expressed as number of observations, means (M)/standard deviations (SD), 95% confidence limits of means (CI), and results of one way analyses of variance. Post hoc p values for analyses with three conditions (Fisher’s PLSD). | ||||||||
Morning shift | n = 13 | n = 94 | n = 70 | |||||
Demand | M/SD | −1.15/2.91 | 0.78/2.71 | 0.65/2.26 | 3.31 | 0.011 | 0.021 | 0.739 |
95%CI | −2.74 to 0.43 | 0.23 to 1.33 | 0.12 to 1.18 | |||||
Control/supp | M/SD | −0.67/1.55 | −0.38/1.58 | −0.82/1.51 | 1.60 | 0.527 | 0.761 | 0.078 |
95%CI | −1.51 to 0.17 | −0.70 to −0.07 | −1.17 to −0.46 | |||||
Distress | M/SD | 0.06/1.18 | 0.03/0.91 | 0.71 | 0.868 | |||
95%CI | −1.18 to 0.29 | −0.19 to 0.24 | ||||||
Pressure | M/SD | 1.48/2.77 | 1.34/2.83 | 9.42 | 0.758 | |||
95%CI | 0.92 to 2.04 | 0.68 to 2.01 | ||||||
Strain | M/SD | 0.62/1.87 | 0.25/1.34 | 2.58 | 0.171 | |||
95%CI | 0.24 to 0.99 | −0.06 to 0.57 | ||||||
Afternoon shift | n = 18 | n = 53 | n = 36 | |||||
Demand | M/SD | −0.55/3.09 | 0.26/2.86 | −2.16/2.30 | 8.47 | 0.282 | 0.043 | 0.0001 |
95%CI | −1.98 to 0.88 | −0.51 to 1.03 | −2.91 to −1.41 | |||||
Control/supp | M/SD | −1.16/1.60 | −0.98/2.04 | −0.89/1.82 | 0.12 | 0.730 | 0.632 | 0.837 |
95%CI | −1.90 to −0.42 | −1.53 to −0.43 | −1.49 to −0.30 | |||||
Distress | M/SD | −0.05/1.15 | −0.39/0.88 | 1.87 | 0.116 | |||
95%CI | −0.36 to 0.26 | −0.68 to −0.10 | ||||||
Pressure | M/SD | 0.25/3.17 | −1.73/2.29 | 4.96 | 0.003 | |||
95%CI | −0.60 to 1.11 | −2.48 to −0.98 | ||||||
Strain | M/SD | 0.08/2.02 | −0.85/1.88 | 2.45 | 0.029 | |||
95%CI | −0.46 to 0.63 | −1.47 to −0.24 | ||||||
Night shift | n = 46 | n = 53 | n = 37 | |||||
Demand | M/SD | 1.52/2.52 | 1.26/2.57 | 1.23/2.36 | 0.18 | 0.611 | 0.601 | 0.953 |
95%CI | 0.79 to 2.25 | 0.57 to 1.95 | 0.47 to 1.99 | |||||
Control/supp | M/SD | 0.18/1.46 | 0.20/1.31 | 0.29/0.81 | 0.09 | 0.932 | 0.692 | 0.742 |
95%CI | −0.24 to 0.60 | −0.15 to 0.56 | 0.03 to 0.55 | |||||
Distress | M/SD | 0.16/0.89 | 0.17/1.63 | 1.36 | 0.957 | |||
95%CI | −0.08 to 0.40 | −0.35 to 0.70 | ||||||
Pressure | M/SD | 1.49/2.64 | 1.32/2.44 | 0.20 | 0.785 | |||
95%CI | 0.78 to 2.20 | 0.53 to 2.11 | ||||||
Strain | M/SD | 0.25/1.37 | 0.04/1.98 | 1.24 | 0.585 | |||
95%CI | −0.12 to 0.62 | −0.60 to 0.67 |