You are aware this paper is seven years old? And its conclusions represent the opinion of just the author, and not the wider medical community?
And you are also aware that the American College of Physicians (ACP) released new recommendations concerning the treatment of OSA in September 2013?
The ACP's new recommendations say that CPAP should be the first line of treatment for all OSA patients, and overweight and obese OSA patients should also be encouraged to lose weight as well as be started on CPAP. Deep in the recommendations there is a long discussion about weight loss and whether it can be effective at managing OSA (It can be for
some, but not
all obese OSA patients.) But in that discussion the authors also noted that the amount of weight that needs to be lost is usually significant and that keeping the weight off usually requires continuing on a pretty low calorie diet more or less permanently.
You can find the meta-study that includes the new recommendations at
http://annals.org/article.aspx?articleid=1742606
It states no benefit from CPAP usage for individuals with my levels
No increased mortality rates either
One thing that is noted in the new recommendations is that there are no studies at all that look CPAP use for more than 24 months, and hence there is simply NO data at all that says anything at all about whether genuine long term CPAP use can be demonstrated to reduce
long term mortality rates in any OSA patient. Out of the numerous CPAP studies the authors went through and studied, almost all of them were limited to considering what happened to the OSA patients during the first
three months (or less) of CPAP use. A handful looked at what happened after
six to twelve months of CPAP use, and one looked at results after
24 months of CPAPing. No study looked at the affects of CPAP use for a period of time any longer than 24 months.
And CPAP is intended as a very long term (permanent) therapy for treating OSA in the same way that insulin is intended as a very long term (permanent) therapy for treating Type I diabetes. So there just isn't any data out there that even looks at very long term mortality rates and whether long term use of CPAP will reduce them.
To be clear: Because no study has considered more than 24 months of CPAP use, the the very long term data simply do not exist: With today's (lack of long term) data, you can't prove anything either way about whether using CPAP for the long haul will reduce the probability of your dying of congestive heart failure or a stroke in 10 or 15 years down the line.