Categorical Variable Norms
The categorical variable norms serve much the same purpose as the scale norms, but categorical variable norms report the modal (most popular) category and the number and percentage of cases in the peer group that fall into that category. Comparing the values can be somewhat trickier; for example, at first glance, it may appear that Gender contributes more to cluster formation than Smoker because the modal category for Smoker is the same for all three peer groups, while the modal category for Gender differs on peer group 3. However, because Gender has only two values, you can infer that 49.2% of the cases in peer group 3 have a value of 0, which is very similar to the percentages in the other peer groups. By contrast, the percentages for Smoker range from 72.2% to 81.4%.
The suspicions that were raised by the scale variable norms are confirmed further down in the categorical norms table. Peer group 2 is composed entirely of patients who were dead on arrival, so all treatment and rehabilitation variables are missing. Most of the patients in peer group 3 (69.0%) died during treatment, so the modal category for rehabilitation variables is (Missing Value).