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. 2004 Aug;90(Suppl 5):v37–v40. doi: 10.1136/hrt.2002.005165

Figure 2.

Figure 2

 Numbers of MPI studies/1000 population/year from the four British Nuclear Cardiology Society surveys.21–23 Response rates for each survey are shown in brackets. Values were calculated using three different assumptions for activity rates in non-responding centres: (1) non-responding centres performed no MPIs (circles); (2) non-responding centres performed the same mean number of MPIs per centre as responding centres (squares); (3) non-responding centres performed the same mean number of MPIs per centre as responding centres which performed MPI (triangles).