Effects of DNP grouped by category.

All doses in mg. Bold numbers indicate row and column sums. * denotes row-wise p-value not calculated because of too small numbers. Otherwise, p-values calculated by the chi-square text. Bold text denotes p-value < 0.05 after Bonferroni correction with factor of 4. If any cell less than 4, the Freeman-Halton extension of Fisher’s exact test was used instead of the chi-squared test.