Thanks for sharing your question and for your kind appreciation.

You might get the full-text version of the article if you go to the journal's website (just follow the doi in my list of references. You can then directly contact the corresponding author vie email. Or you go to ResearchGate and find that author there, send him a message via RG. Typically, authors are willing to let you have the full-text version if you tell them why you want it.

Sleep apnoea was not explicitly considered or adjusted for, but several conditions that typically go hand in hand with it, such as cardiovascular diseases.