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Table 2 Sensor data acquisition rate by type per group

From: Development of an integrated fatigue measurement system for construction workers: a feasibility study

Variable

Total (N = 80)

Mean (95% CI)

High fatigue group (n = 35)

Mean (95% CI)

Low fatigue group (n = 45)

Mean (95% CI)

Data acquisition rate (%) during morning work

 Heart rate

79.87% (73.59–85.17%)

77.85% (67.26–86.67%)

81.44% (73.81–88.34%)

 Accelerometer

92.75% (88.85–96.39%)

91.70% (83.15–97.61%)

93.57% (89.21–97.28%)

 Gyroscope

92.75% (88.85–96.39%)

91.70% (83.15–97.61%)

93.57% (89.21–97.28%)

Data acquisition rate (%) during afternoon work

 Heart rate

79.13% (72.48–84.68%)

79.68% (67.67–89.85%)

78.71% (70.52–85.92%)

 Accelerometer

91.41% (87.20–94.90%)

91.68% (84.01–97.94%)

91.20% (86.38–95.64%)

 Gyroscope

91.41% (87.20–94.90%)

91.68% (84.01–97.94%)

91.20% (86.38–95.64%)

Data acquisition rate (%) during sleep time

 Heart rate

67.81% (59.99–75.88%)

64.31% (49.14–76.92%)

70.52% (59.15–81.64%)

 Accelerometer

72.54% (64.68–80.17%)

65.92% (50.68–78.72%)

77.69% (68.20–86.63%)

 Gyroscope

72.54% (64.68–80.17%)

65.92% (50.68–78.72%)

77.69% (68.20–86.63%)