Table 4:

χ2 test to assess the variation in plaque type according to the kiloelectron volts used

Energy (keV)66 keV70 keV77 keV86 keV
66x0,3310,12.032a
700,331x0,557.236
770,120,557x.549
860,032a0,2360,549x

  • Note:—x indicates not calculable.

  • ↵a Statistically significant P value.