[Statistical evaluation of progression tendencies for treatment results in laryngeal and hypopharyngeal carcinoma].

Retrospective assessment of treatment results in larynx and hypopharynx carcinoma treated in ENT department from 1970 to 1991 was undertaken. Linear function and square trend were used in analysis. The patients survival trend after the treatment of carcinoma and recurrence appearance trend were estimated. It was revealed that presence of metastases in lymph nodes, has reduced year by year with 0.235%.