I need to answer the questions what method did the authors utilize in the study, what were the findings of the research, and what are the implications of the findings from this research about this research article: Rates and Patterns of Comorbidity among First-Year College Students. I have some things written but am having trouble fully answering the questions.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4976041/pdf/nihms-738200.pdf