Table 3. Distribution of B. burgdorferi genotype groups in mice and nymphal ticks at combined sites
Genotype group by sequence
Species/study I II III
P. leucopus mice
    1998-1999 11 8 4
    2001-2002 10 6 3
I. scapularis ticks
    1998-1999 26 11 25
    2001-2002 57 37 51
C—M—H*
Species effect χ2 7.00 df 2 p = 0.03
Study effect χ2 1.04 df 2 p = 0.61
  • * C—M—H exact test with 10,000 Monte Carlo samples (statxact version 6, Cytel).