Epidemiology of oral cancer in Connecticut, 1935 to 1985.
All cases of oral cancer (N = 9708) recorded by the Connecticut Tumor Registry from 1935 to 1985 were analyzed for time-trend patterns within 10-year age-groups. Crude, age-specific, age-adjusted incidence rates and birth cohort analyses were calculated. The average annual age-adjusted incidence rate was 12.9/100,000 for men and 2.9/100,000 for women (1970 US standard million population). The male age-adjusted incidence rate decreased 33% from the late 1930s to the early 1980s. The female age-adjusted incidence rate exhibited a threefold steady increase over this same time period. The male/female ratio for oral cancer incidence declined dramatically from 10.4 to 2.7 for the age-adjusted rate, nearly a fourfold decrease during the 51- year period. Birth cohort analyses for women indicated a marked increase in oral cancer incidence for the birth cohort of 1900, which was sustained in the birth cohorts that followed. Birth cohort analyses for men revealed a decline in oral cancer incidence for birth cohorts born after 1910. The highest incidence rates were found in the urban counties and the lowest in the rural areas.
Chen
J K
JK
Department of Oral Diagnosis/Pathology, University of Connecticut, Farmington.
Katz
R V
RV
Krutchkoff
D J
DJ
D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D003237:Connecticut / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000453:epidemiology*; D012042:Registries; D012424:Rural Population; D012737:Sex Factors; D014505:Urban Population