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. Author manuscript; available in PMC: 2023 Sep 26.
Published in final edited form as: J Biophotonics. 2022 Dec 23;16(4):e202200291. doi: 10.1002/jbio.202200291

TABLE 4.

Average lifetimes of the different tumor types and malignancy grades

Average lifetime (ns)
Tissue Number of patients Number of samples 390-nm 470-nm 542-nm
Astrocytoma 6 12 3.83 ± 0.60 4.05 ± 0.14 3.86 ± 0.22
Oligodendroglioma 3 14 3.82 ± 0.13 3.25 ± 0.13 2.78 ± 0.24
P (A-O) 0.93 1.57 × 10−4 1.92 × 10−4
Astrocytoma grade 2 2 2 3.64 ± 0.32 4.30 ± 0.68 4.38 ± 0.91
Astrocytoma grade 3 2 5 4.10 ± 0.22 4.25 ± 0.10 4.05 ± 0.31
Astrocytoma grade 4 2 5 3.70 ± 0.32 3.75 ± 0.37 3.45 ± 0.38
P (A2-A3) 0.267 1.000 0.857
P (A2-A4) 1.000 0.191 0.191
P (A3-A4) 0.064 0.151 0.056
Oligodendroglioma grade 2 1 4 3.69 ± 0.17 2.96 ± 0.08 2.40 ± 0.33
Oligodendroglioma grade 3 2 10 3.85 ± 0.29 3.36 ± 0.34 2.93 ± 0.41
P (O2-O3) 0.606 0.004 0.054

Note: Gray cells indicate comparisons with statistical significance (p < 0.01).

Abbreviation: A, astrocytoma; O, oligodendroglioma; A2, astrocytoma grade 2; A3, astrocytoma grade 3; A4, astrocytoma grade 4; O2, oligodendroglioma grade 2; O3, oligodendroglioma grade 3.