Which details help you judge a news story about a rheumatology study?

I am posting on behalf of MedProofs, which covers medical research and health news. I would like to ask what information you look for when reading about a new rheumatology study. The MedProofs health news section is the context for my question. A news article cannot tell whether a treatment is suitable for an individual person. When a headline reports an improvement, would you want the article to explain how large the improvement was, or who took part in the study? I would also be interested in details that you often find missing. I am asking about how research is explained, without asking anyone for their medical history.