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. 2018 Jan 31;70(5):649–664. doi: 10.1016/j.ihj.2018.01.024

Table 3.

Statistical tests for reproducibility of the automated system.

Combinations Two-tailed z-Test
Mann-Whitney Test
z P-value P-value
Reproducibility (Intra-Operator)
Auto 1a versus Auto 1b 0.0604 <0.9518 0.9393
Auto 1b versus Auto 1c 0.0046 <0.9963 0.9931
Auto 1a versus Auto 1c 0.0558 <0.9555 0.9465
Auto 2a versus Auto 2b 0.1493 <0.8813 0.8920
Auto 2b versus Auto 2c 0.0422 <0.9664 0.9921
Auto 2a versus Auto 2c 0.1076 <0.9144 0.9105
Reproducibility (Inter-Operator)
Auto 1a versus Auto 2a 1.1220 <0.2619 0.2387
Auto 1a versus Auto 2b 1.2739 <0.2027 0.1878
Auto 1a versus Auto 2c 1.2345 <0.2170 0.1801
Auto 1b versus Auto 2a 1.1808 <0.2377 0.2146
Auto 1b versus Auto 2b 1.3327 <0.1826 0.1697
Auto 1b versus Auto 2c 1.2935 <0.1959 0.1659
Auto 1c versus Auto 2a 1.1765 <0.2394 0.2201
Auto 1c versus Auto 2b 1.3284 <0.1841 0.1709
Auto 1c versus Auto 2c 1.2891 <0.1974 0.1691
Variability (Intra-Observer)
Manual 1a versus Manual 1b 0.2600 <0.7948 0.8106
Manual 2a versus Manual 2b 0.1220 <0.9731 0.9790
Variability (Inter-Observer)
Manual 1a versus Manual 2a 1.6667 <0.0956 0.0871
Manual 1a versus Manual 2b 1.6995 <0.0892 0.0781
Manual 1b versus Manual 2a 1.5462 <0.0488 0.1081
Manual 1b versus Manual 2b 1.5800 <0.1141 0.1006