Table II.

Group Classification of the non-neoplastic (parotid cyst, chronic sialadenitis, Morbus Sjögren and Lymphadenitis) versus neoplastic (cystadenolymphoma, pleomorphic adenoma, basal cell adenoma, epitheloid cell granuloma, hemangioma, myoepithelioma and oncocytoma) parotid disease profile according to the short (ST)-, long (LT)-, and to the short- and long-term (SLT) observation interval.

POI-8 results	ST neoplastic (n = 46)	ST non-neoplastic (n = 11)	LT neoplastic (n = 60)	LT non-neoplastic (n = 14)	SLT_short neoplastic (n = 26)	SLT_short non-neoplastic (n = 7)	SLT_long neoplastic (n = 26)	SLT_long non-neoplastic (n = 7)
POI-8 mean score	7.3	8.27	5.02	5.71	7.96	9.29	4.65	7.0
Major problem	1.76 (hypoaesthesia)	2.27 (hypoaesthesia)	1.1 (fear of revision surgery)	1.5 (Frey’s syndrome)	2.0 (hypoaesthesia)	2.29 (hypoaesthesia)	1.04 (fear of revision surgery)	2.29 (Frey’s syndrome)
Minor problem	0.26 (facial palsy)	0.91 (pain) / 0.91 (substance loss)	0.1 (facial palsy)	0 (facial palsy)	0.23 (facial palsy)	0 (facial palsy)	0 (facial palsy)	0 (facial palsy)