| Respondents | Non-respondents |
---|---|---|
2006 (n) (31 hospitals) | 8,311 | unknown |
% Male 2006 | unknown | unknown |
Avg. age 2006 | 61 | unknown |
2007 (n) (78 hospitals) | 22,333 | 14,190 |
   % Male 2007 | 42% | 42% |
   Avg. age 2007 | 61 | 63 |
2009 (n) (94 hospitals) | 24,246 | 18,009 |
   % Male 2009 | 43% | 42% |
   Avg. age 2009 | 60* | 72 |