Prior immunity-related medical conditions and pancreatic-cancer risk in Shanghai.

Dai Q, Zheng W, Ji BT, Shu XO, Jin F, Zhu JL, Gao YT
Int J Cancer. 1995 63 (3): 337-40

PMID: 7591227 · DOI:10.1002/ijc.2910630305

To investigate the role of immunity-related medical conditions in the etiology of pancreatic cancer, we analyzed data from a population-based case-control study of pancreatic cancer conducted in Shanghai during 1992 and 1993. Information on prior histories of selected auto-immune diseases and allergic conditions was obtained from 108 incident pancreatic-cancer cases and 275 age- and gender-frequency matched controls by face-to-face interviews using a structured questionnaire. A prior history of auto-immune diseases was associated with a 2-fold elevated risk of pancreatic cancer (95% CI = 1.0-4.2), with an indication of a dose-response relation for the number of reported diseases. In contrast, a prior history of allergic condition was related to reduced risk (OR = 0.6, 95% CI = 0.4-1.1). With the possible exception of drug allergy, such an inverse association was seen for virtually all allergic conditions., although none of the OR was statistically significant. This study suggests that host immune function may be involved in the etiology of pancreatic cancer. Further investigations into the mechanism of these observed associations are warranted.

MeSH Terms (14)

Adult Aged Animals Autoimmune Diseases Case-Control Studies Culicidae Female Humans Hypersensitivity Insect Bites and Stings Male Middle Aged Pancreatic Neoplasms Risk Factors

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