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Table 4 Simpson's index of diversity (SID) with 95% confidence interval for individual and combined typing methods

From: Occurrence of Mycobacterium avium subspecies paratuberculosis across host species and European countries with evidence for transmission between wildlife and domestic ruminants

  All isolates Scotland Mainland Europe
Method No. of types SID No. of types SID No. of types SID
PFGE-SnaBI 21 0.594 (0.493-0.695)a 5 0.234 (0.075-0.393)ab 17 0.744 (0.655-0.834)ac
PFGE-SpeI 19 0.485 (0.372-0.597)a 5 0.267 (0.105-0.430)ab 16 0.599 (0.468-0.729)ab
PFGE-multiplex 26 0.654 (0.558-0.749)ab 6 0.270 (0.104-0.437)ab 22 0.804 (0.727-0.881)acd
IS900-RFLP 15 0.636 (0.582-0.690)a 3 0.080 (0.00-0.191)a 14 0.422 (0.277-0.567)b
MIRU-VNTR 19 0.664 (0.588-0.740)ab 5 0.235 (0.074-0.395)ab 16 0.770 (0.706-0.835)ac
Multiplex PFGE + IS900-RFLP 34 0.834 (0.782-0.885)c 6 0.270 (0.104-0.437)ab 30 0.877 (0.82-0.934)cde
Multiplex PFGE + MIRU-VNTR 37 0.797 (0.727-0.867)bc 9 0.406 (0.228-0.584)ab 30 0.914 (0.878-0.949)de
IS900-RFLP + MIRU-VNTR 29 0.825 (0.774-0.876)c 6 0.236 (0.074-0.398)ab 24 0.868 (0.820-0.917)cde
All methods combined 44 0.879 (0.831-0.927)c 9 0.406 (0.228-0.584)b 36 0.941 (0.913-0.969)e
  1. Simpson's index of diversity (SID) with 95% confidence interval for individual and combined typing methods based on analysis of 123 Map isolates originating from Scotland (n = 48) and mainland Europe (n = 75) abcde Non-overlapping 95% confidence intervals are considered significantly different [55] and are indicated by different superscripts.