Parotid gland-recovery after radiotherapy in the head and neck region - 36 months follow-up of a prospective clinical study

Table 4 Tumor site with mean and standard deviation of relative salivary flow rate at 1, 6, 12, 24, and 36 months after radiotherapy.

Tumor site		Patients (n)	mean RSFR (%)	SD (%)
Oral cavitiy	1 month after RT	29	34.3	32.42
	6 months after RT	29	32.7	35.63
	12 months after RT	28	35.9	37.54
	24 months after RT	14	43.4	37.84
	36 months after RT	13	31,0	28.20
Oropharynx	1 month after RT	51	30.2	27.67
	6 months after RT	47	27.4	29.87
	12 months after RT	41	34.1	33.56
	24 months after RT	30	51.3	34.75
	36 months after RT	16	55.9	39.70
Hypopharynx/Larynx	1 month after RT	28	42.7	32.32
	6 months after RT	27	42.6	34.50
	12 months after RT	29	53.1	31.90
	24 months after RT	17	59.6	28.94
	36 months after RT	11	61.6	29.99

ISSN: 1748-717X