We will use two definitions of improvement: any reduction in PHQ-9; a reduction sufficient to move the patient at least one severity category lower.
For the statistical analysis, we lumped all questions unrelated to lab into one category of lower-order cognition.
In fact, 24 correlations were predicted correctly, 15 were either higher or lower by one category and one lower by two categories (predicted as moderate correlation but resulted as very weak).
That's an example of how you spend more on one category of cost to dramatically lower other categories of cost.
In this case, each cutoff forms the upper boundary of one category and the lower boundary of the next, so that all results can be categorized (except for those that have failed).
Between two collection points, moves from one category to a higher (or lower) category will be identified as a reinforcement (or reduction) of the treatment.
Examination of the relative contributions of changes in blood pressure, cholesterol, and smoking status among patients whose overall Framingham-calculated risk decreased (ie, improved) by at least one category during the survey indicated that lower blood pressure was considerably the largest single risk factor alteration associated with the reduction in CHD risk.
We collapsed the upper class, the upper middle class, and the middle class into one category, "the upper and middle class," followed by "the lower middle class" and "the lower class".
Over the past five years, Botswana, Cape Verde, Mauritius, Seychelles and South Africa recorded lower scores in at least one category of the index, which measures overall government performance, safety and rule of law, participation and human rights, sustainable economic opportunities and human development.
Using the overall score allowed compensation for poor conditions in one category, by better scores in another one, for example a lower score in the "locomotion" category could be compensated for by a better score in the "environment" category.
