Biomaterial Database

Increasing incidence and changing presentation of thyroid cancer over a 30-year period. 1995

T J Fahey, and T S Reeve, and L Delbridge

Endocrine Surgical Unit, Royal North Shore Hospital, St Leonards, New South Wales, Australia.

During a 30-year period 8561 thyroidectomies were performed and 660 new patients presented with thyroid cancer. The number of thyroidectomies performed annually remained relatively constant for the past 20 years but the annual incidence of thyroid cancer increased from two patients in 1963 to 60 in 1992. Possible contributing factors include: altered referral patterns as a result of the introduction of fine-needle aspiration biopsy; an increase in the incidence of occult papillary cancer as a result of performing total thyroidectomy for multinodular goitre; and a background increase of thyroid cancer in the population. Data from the New South Wales State Cancer Registry implicate a background increase in the incidence of thyroid cancer in the population as a major contributing factor.

UI	MeSH Term	Description	Entries
D009517	New South Wales	A state in southeastern Australia. Its capital is Sydney. It was discovered by Captain Cook in 1770 and first settled at Botany Bay by marines and convicts in 1788. It was named by Captain Cook who thought its coastline resembled that of South Wales. (From Webster's New Geographical Dictionary, 1988, p840 & Room, Brewer's Dictionary of Names, 1992, p377)
D011446	Prospective Studies	Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.	Prospective Study,Studies, Prospective,Study, Prospective
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013964	Thyroid Neoplasms	Tumors or cancer of the THYROID GLAND.	Cancer of Thyroid,Thyroid Cancer,Cancer of the Thyroid,Neoplasms, Thyroid,Thyroid Adenoma,Thyroid Carcinoma,Adenoma, Thyroid,Adenomas, Thyroid,Cancer, Thyroid,Cancers, Thyroid,Carcinoma, Thyroid,Carcinomas, Thyroid,Neoplasm, Thyroid,Thyroid Adenomas,Thyroid Cancers,Thyroid Carcinomas,Thyroid Neoplasm
D013965	Thyroidectomy	Surgical removal of the thyroid gland. (Dorland, 28th ed)	Thyroidectomies
D015994	Incidence	The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases in the population at a given time.	Attack Rate,Cumulative Incidence,Incidence Proportion,Incidence Rate,Person-time Rate,Secondary Attack Rate,Attack Rate, Secondary,Attack Rates,Cumulative Incidences,Incidence Proportions,Incidence Rates,Incidence, Cumulative,Incidences,Person time Rate,Person-time Rates,Proportion, Incidence,Rate, Attack,Rate, Incidence,Rate, Person-time,Rate, Secondary Attack,Secondary Attack Rates