Healthcare: USA versus Canada versus England, statistically speaking

A recent "Investor's Business Daily" article provided very interesting statistics from a survey by the United Nations International Health Organization.

Percentage of men and women who 
survived a cancer five years after diagnosis: 
  U.S.             65% 
  England        46% 
  Canada         42%

Percentage of patients diagnosed with 
diabetes who received treatment within six months: 
  U.S.             93% 
  England        15% 
  Canada         43%

Percentage of seniors needing hip 
replacement who received it within six months: 
  U.S.             90% 
  England        15% 
  Canada         43%

Percentage referred to a medical 
specialist who see one within one month: 
  U.S.             77% 
  England        40% 
  Canada         43%

Number of MRI scanners (a prime diagnostic tool)
per million people: 
  U.S.             71 
  England        14 
  Canada         18

Percentage of seniors (65+), with low 
income, who say they are in "excellent health": 
  U.S.             12% 
  England        2% 
  Canada         6%