Table 1.

Proliferation density in the olfactory epithelium during postnatal development measured as BrdU-labeled basal cells per length

AgeNumber of animalsCells per mmSESignificance pvalue*Counted unitsCounted mm
mfN
P1–3224150.884.51662158.09
P11011118.6541599.10
0.0021-160
P2142669.852.1950751211.91
0.0001
P4045936.813.0453401275.19
0.0001
P6634724.241.4442641018.24
0.001
P10541516.800.2542711019.91
0.018
P18130310.160.763912934.19
0.05
P3333038.030.2450931216.21
  • m = males; f = females; N = total number of animals.

  • * Mann-Whitney U test, U = 0 among all age groups; the values did not overlap between age groups, so that p depends only on the number of animals.

  • F1-160 P1–3 and P11 were combined as one group for the calculation of thep value.