Table 3.

The $p$ value of expression level of IL-$1\beta$ between groups of normal, urethane, acute, 2 weeks, MinoNAC.2w, 6 weeks postsoft window installation.

IL-$1\beta$	Normal	Urethane	Acute	2 weeks	MinoNAC.2w	6 weeks
Normal		1	0.006	0.002	1	0.284
		NS	**	**	NS	NS
Urethane	1		$<0.001$	$<0.001$	0.384	1
	NS		***	***	NS	NS
Acute	0.006	$<0.001$		$<0.001$	0.035	0.001
	**	***		***	*	**
2 weeks	0.002	$<0.001$	1		0.012	$<0.001$
	**	***	NS		*	***
MinoNAC.2w	1	0.389	0.035	0.012		1
	NS	NS	*	*		NS
6 weeks	0.284	1	0.001	$<0.001$	1
	NS	NS	**	***	NS

Note: NS, not significant.

^*$p<0.05$.

^**$p<0.01$.

^***$p<0.001$.