If it's simple stats you're after, you could do worse than look at the broken link removed: https://www.njrcentre.org.uk/NjrCentre/Portals/0/Documents/England/Reports/9th_annual_report/NJR%209th%20Annual%20Report%202012.pdf. You need to go straight to page 118 "Outcomes after primary hip replacement 2003 to 2011" and after that to page 129 which will, I think, give you what you are looking for.
Page 132 also bears looking at
Page 132 also bears looking at