Table 1. Description of Metrics.

score	description	score	description
zone (layer of skin with a sensor)		host interface
1	epidermis	1	no reaction (smooth surface)
2	superficial dermis	2A	capsule, minimal
3	deep dermis	2B	capsule, mild
4	muscle layer	2C	capsule, moderate
5	submuscular	3A	infiltrative, peripheral
6	subcutis	3B	infiltrative, partial
		3C	infiltrative, diffuse
device presence
Y1	yes, well-defined	cellular response (healing scale)
Y2	yes, marginal	A	acute
N	no	SA	subacute
		C	chronic
device state		CP	chronic with phagocytosis
I	intact	CA	chronic-active
F	fragmented	CAP	chronic-active with phagocytosis
D	degraded	ACT	active
		R	remodeling
		H	healed