Table 2: Paired samples -test for comparison of means.

Paired samples -testPaired differencesSignificance
Mean 95%  CI of the difference
LowerUpper

ALD by US-ALD by VM in control group0.0390.0260.051<0.001
ALD by US-ALD by VM in elastase group0.005−0.0350.0448
ALD by US-ALD by Histology in control group1790.1610.197<0.001
ALD by US-ALD by Histology in elastase group0.1700.130.208<0.001