Table 5.

Tukey's honestly significant difference test of the possible comparison pairs (Healthy (H) VS. IPF; Healthy VS. COVID; and, IPF VS. COVID). Statistical significance for $\alpha =0.01$ (**) and for $\alpha =0.05$ (*).

Scale factor ($\tau$)	$p$-Value
	H-IPF	H-COVID	IPF-COVID
1	0.330	0.000**	0.040*
2	0.502	0.000**	0.002**
3	0.003**	0.000**	0.002**
4	0.001**	0.000**	0.010*
5	0.100	0.000**	0.163
6	0.001**	0.000**	0.023*
7	0.001**	0.000**	0.015*
8	0.002**	0.000**	0.031*
9	0.942	0.101	0.040*
10	0.093	0.005**	0.754