The analysis included 46 patients randomly assigned to either the control group (n=23)or the exercise group (n=23). Researchers performed linear mixed models to determine patient’s eGFR slope.

Treatment effects 10 weeks and 6 months after surgery were estimated with linear mixed models ... or specific (n=29) exercise programme. There were no between-group differences in clinical or muscle ...

Bell, David E. "Linear Programming Exercises." Harvard Business School Exercise 189-002, July 1988. (Revised September 1994.) ...