Incidence and survival of malignant parotid tumours in the West Midlands region 1977-1986.
The aim of this study was to describe the incidence and survival of patients with malignant parotid tumours resident in the West Midlands Regional Health Authority. The study population consisted of all patients with malignant tumours arising in the parotid gland and registered with the West Midlands Regional Cancer Registry between 1 January 1977 and 31 December 1986. Variables included in the analysis were: age, sex, date of diagnosis, side of origin, tumour histology, vital status and date of death. No temporal change in the incidence of parotid tumours was observed. More tumours originated within the left parotid gland (chi 2(1) = 4.0, P < 0.05). The 5-year actuarial survival for all tumours was 55.7%. When a Cox's proportional hazards regression model was fitted to the data, age at diagnosis (60-74 years) and histological type were found to be the critical determinants of outcome.
Parry
J
J
University of Birmingham Medical School, Edgbaston, UK.
Cummins
C
C
Redman
V
V
Wilson
S
S
Woodman
C
C
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D004739:England / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010307:Parotid Neoplasms / Q000453:epidemiology* / Q000401:mortality