> The study revealed that the median age of the hospitalized patients was 63, and that 57% of these patients had hypertension, 34% had diabetes, and 42% were obese. Interestingly, the vast majority of the patients (88%) had two or more of these co-morbidities.<p>40% of Americans over age 20 (<i>twenty</i>!) are obese. Source: <a href="https://www.cdc.gov/nchs/fastats/obesity-overweight.htm" rel="nofollow">https://www.cdc.gov/nchs/fastats/obesity-overweight.htm</a><p>45% of American adults have hypertension. Source: <a href="https://www.cdc.gov/bloodpressure/facts.htm" rel="nofollow">https://www.cdc.gov/bloodpressure/facts.htm</a> For the 55+ age group I'd bet money, without Googling, it's ~57%.<p>Those aren't co-morbidities, they just reflect the population.
The diabetes prevalence seems maybe ~2x higher than would be expected, however, unless the 34% figure includes pre-diabetes and borderline cases. For age distributions see <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3464829/" rel="nofollow">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3464829/</a>