Table 3 Dietary intake levels of fish and marine n-3 fatty acid in relation to risk of breast cancer by stage of disease and menopausal status, the Singapore Chinese Health Studya

From: Opposing effects of dietary n-3 and n-6 fatty acids on mammary carcinogenesis: The Singapore Chinese Health Study

  1. RRs were adjusted for age at baseline interview (years), year of recruitment (1993–1998), dialect group (Cantonese, Hokkien), education (no formal education, primary school, secondary school or higher), daily alcohol drinker (yes, no), family history of breast cancer (yes, no), age when period became regular (⩽12, 13–14,15–16, 17+ years or irregular), and number of live births (0, 1–2, 3–4, 5+).
  2. The sum was less than the total number of cases due to exclusion of cases with unknown stage in these analyses.
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