Biomaterial Database

An examination of the relationship between fluoridation of water and cancer mortality in 20 large US cities. 1980

A H Smith

A comparison of mortality of 10 US cities with fluoridated water supplies compared with 10 non-fluoridated cities has been used as evidence that artificial fluoridation of drinking water causes cancer and has been widely publicised in New Zealand. Several deficiencies are noted in the analysis used by the investigators in this study and it is shown that appropriate analysis of the data from these cities yields additional evidence for the safety of fluoridation. This finding agrees with that from previous examinations of the same data in spite of the fact that they included an error in the mortality report from one city.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009369	Neoplasms	New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms.	Benign Neoplasm,Cancer,Malignant Neoplasm,Tumor,Tumors,Benign Neoplasms,Malignancy,Malignant Neoplasms,Neoplasia,Neoplasm,Neoplasms, Benign,Cancers,Malignancies,Neoplasias,Neoplasm, Benign,Neoplasm, Malignant,Neoplasms, Malignant
D005260	Female		Females
D005457	Fluoridation	Practice of adding fluoride to water, and other food or beverages, for the purpose of preventing DENTAL CARIES.	Milk Fluoridation,Salt Fluoridation,Water Fluoridation,Fluoridation, Milk,Fluoridation, Salt,Fluoridation, Water
D005459	Fluorides	Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices.	Fluoride
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D012306	Risk	The probability that an event will occur. It encompasses a variety of measures of the probability of a generally unfavorable outcome.	Relative Risk,Relative Risks,Risk, Relative,Risks,Risks, Relative
D014481	United States	A country in NORTH AMERICA between CANADA and MEXICO.