61. The t test was used to evaluate the differences between durations of disease in the two groups. 62. This difference between mean disease durations in the two groups was statistically significant. 63. There were no significant differences in the ages, weights, or stool frequency between the three groups. 64. There were no significant differences in the proportions of total chenodeoxycholic acid or cholic acid derivatives between the three groups. 65. The Mann-Whitney U test was used to detect differences in continuous dependent variables between the two groups. 66. The plasma gastrin concentrations in the various groups increased in the same order of magnitude as expected from the gastrin dose given. 67. The similarity between the two groups was maintained when the nine patients in group A who developed calculi after sclerisong cholangitis was diagnosed were excluded. 68. Because of the similarities between the two subgroups in group A, they are hereafter referred to as one group. |