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Br J Cancer. Mar 1979; 39(3): 293–309.
PMCID: PMC2009866

Oesophageal cancer studies in the Caspian Littoral of Iran: results of a case-control study.

Abstract

The results are presented of a case-control study conducted in the north of Iran. The main aim was to study factors identified in a previous study as potentially causally related to cancer of the oesophagus. Other tumours (lung, stomach, breast, large bowel, larynx and pharynx) were included to distinguish findings specific for oesophageal cancer from general characteristics of cancer patients, due for example to ascertainment bias, and to verify that expected associations, such as between lung cancer and cigarette smoking, would emerge under the prevailing field conditions. Two controls were chosen per case, matched for village of residence, age, sex and language group, Reinterviewing was performed to a limited extent to assess the accuracy of replies to questionnaires. The following were found not to be associated with oesophageal cancer: consumption of sheep's milk and yoghurt, sesame oil, chewing of nass, making of carpets, use of pregnancy diets, salting and sun-drying of meat and use of wild spinach. The use of opium, bread and tea could not be assessed in the retrospective framework. Strongly associated with risk of oesophageal cancer were low socio-economic status and low intake of fresh fruit and vegetables. The two factors each had an independent effect, and were more marked for oesophageal cancer than for the other tumours.

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Selected References

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  • De Jong UW, Breslow N, Hong JG, Sridharan M, Shanmugaratnam K. Aetiological factors in oesophageal cancer in Singapore Chinese. Int J Cancer. 1974 Mar 15;13(3):291–303. [PubMed]
  • Hewer T, Rose E, Ghadirian P, Castegnaro M, Malaveille C, Bartsch H, Day N. Ingested mutagens from opium and tobacco pyrolysis products and cancer of the oesophagus. Lancet. 1978 Sep 2;2(8088):494–496. [PubMed]
  • Kmet J, Mahboubi E. Esophageal cancer in the Caspian littoral of Iran: initial studies. Science. 1972 Feb 25;175(4024):846–853. [PubMed]
  • Mahboubi E, Kmet J, Cook PJ, Day NE, Ghadirian P, Salmasizadeh S. Oesophageal cancer studies in the Caspian Littoral of Iran: the Caspian cancer registry. Br J Cancer. 1973 Sep;28(3):197–214. [PMC free article] [PubMed]
  • Mantel N, Brown C, Byar DP. Tests for homogeneity of effect in an epidemiologic investigation. Am J Epidemiol. 1977 Aug;106(2):125–129. [PubMed]
  • MANTEL N, HAENSZEL W. Statistical aspects of the analysis of data from retrospective studies of disease. J Natl Cancer Inst. 1959 Apr;22(4):719–748. [PubMed]
  • Martinez I. Factors associated with ccer of the esophagus, mouth, and pharynx in Puerto Rico. J Natl Cancer Inst. 1969 Jun;42(6):1069–1094. [PubMed]
  • WYNDER EL, BROSS IJ. A study of etiological factors in cancer of the esophagus. Cancer. 1961 Mar-Apr;14:389–413. [PubMed]

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