I think that first you have to look for relevant literature on the subject, and summarize its main points. The Google Scholar has many papers on the subject, for instance:
Socioeconomic inequalities in the diffusion of health technology: Uptake of coronary procedures as an example
RJ Korda, MS Clements, J Dixon - Social science & medicine, 2011 -
After summarizing the main points, see if you could prepare a paper of your own.