Dietary Patterns and Breast Cancer Risk: A Multi-Centre Case Control Study among North Indian Women

Krithiga Shridhar, Gurpreet Singh, Subhojit Dey, Sarvdeep Singh Dhatt, Jatinder Paul Singh Gill, Michael Goodman, Melina Samar Magsumbol, Neil Pearce, Sandeep Singh, Archna Singh, Preeti Singh, Jarnail Singh Thakur and Preet Kaur Dhillon
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Krithiga Shridhar: Centre for Chronic Disease Control, Centre for Chronic Conditions and Injures, Public Health Foundation of India, Gurgaon 122002, India
Gurpreet Singh: Postgraduate Institute of Medical Sciences and Research, Chandigarh 160012, India
Subhojit Dey: Indian Institute of Public Health, Public Health Foundation of India, Gurgaon 122002, India
Sarvdeep Singh Dhatt: Postgraduate Institute of Medical Sciences and Research, Chandigarh 160012, India
Jatinder Paul Singh Gill: Guru Angad Dev Veterinay and Animal Sciences University, Ludhiana 141004, India
Michael Goodman: Rollins School of Public Health, Emory University, Claudia Nance Rollins Building, 1518 Clifton Road, CNR 7040H, Atlanta, GA 30322, USA
Melina Samar Magsumbol: Public Health Foundation of India, Gurgaon 122002, India
Neil Pearce: London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
Sandeep Singh: Centre for Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda 151001, India
Archna Singh: Indian Institute of Public Health, Public Health Foundation of India, Gurgaon 122002, India
Preeti Singh: Public Health Foundation of India, Gurgaon 122002, India
Jarnail Singh Thakur: Postgraduate Institute of Medical Sciences and Research, Chandigarh 160012, India
Preet Kaur Dhillon: Centre for Chronic Disease Control, Centre for Chronic Conditions and Injures, Public Health Foundation of India, Gurgaon 122002, India

IJERPH, 2018, vol. 15, issue 9, 1-11

Abstract: Evidence from India, a country with unique and distinct food intake patterns often characterized by lifelong adherence, may offer important insight into the role of diet in breast cancer etiology. We evaluated the association between Indian dietary patterns and breast cancer risk in a multi-centre case-control study conducted in the North Indian states of Punjab and Haryana. Eligible cases were women 30–69 years of age, with newly diagnosed, biopsy-confirmed breast cancer recruited from hospitals or population-based cancer registries. Controls (hospital- or population-based) were frequency matched to the cases on age and region (Punjab or Haryana). Information about diet, lifestyle, reproductive and socio-demographic factors was collected using a structured interviewer-administered questionnaire. All participants were characterized as non-vegetarians, lacto-vegetarians (those who consumed no animal products except dairy) or lacto-ovo-vegetarians (persons whose diet also included eggs). The study population included 400 breast cancer cases and 354 controls. Most (62%) were lacto-ovo-vegetarians. Breast cancer risk was lower in lacto-ovo-vegetarians compared to both non-vegetarians and lacto-vegetarians with odds ratios (95% confidence intervals) of 0.6 (0.3–0.9) and 0.4 (0.3–0.7), respectively. The unexpected difference between lacto-ovo-vegetarian and lacto-vegetarian dietary patterns could be due to egg-consumption patterns which requires confirmation and further investigation.

Keywords: breast cancer; diet; vegetarian; egg; India (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2018
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