Abstract
Objective
Being breastfed in infancy has been hypothesized to influence subsequent breast cancer risk. In a hospital-based case–control study, we investigated the relationship between having been breastfed and breast cancer risk, both overall and separately among female subjects with different birth years.
Methods
The study subjects included 571 cases and 2,155 controls admitted to a single hospital in Miyagi Prefecture, Japan, between 1997 and 2005. History of having been breastfed was assessed with a self-administered questionnaire. Odds ratios (ORs) and 95% confidence interval (CI) were estimated using logistic regression.
Results
After adjustment for known risk factors, no association for having been breastfed was observed overall (OR = 1.20; 95% CI: 0.82–1.76). Analysis stratified according to birth year (<1950, ≥1950) demonstrated heterogeneity in the association for having been breastfed between the two birth-year groups (p for interaction = 0.0006); having been breastfed was significantly associated with a decreased risk among subjects who were born before 1950 (OR = 0.59; 95% CI: 0.35–0.99), whereas no such risk reduction was observed for subjects born after 1950 (OR = 1.60; 95% CI: 0.88–2.90).
Conclusion
Although having been breastfed is not related to overall risk, birth year may modify the association between having been breastfed in infancy and breast cancer risk. In Japan, sociodemographic changes have occurred since the end of World War II. The use of standard formula supplement began to spread around 1950. The difference of breast cancer risk between birth-year groups may be attributable to these environmental changes.
Similar content being viewed by others
Abbreviations
- OR:
-
Odds ratio
- CI:
-
Confidence interval
- MCCH:
-
Miyagi Cancer Center Hospital
References
Minami Y, Tsubono Y, Nishino Y, Ohuchi N, Shibuya D, Hisamichi S (2004) The increase of female breast cancer incidence in Japan: emergence of birth cohort effect. Int J Cancer 108:901–906
Kawai M, Minami Y, Kuriyama S, Kakizaki M, Kakugawa Y, Nishino Y, Ishida T, Fukao A, Tsuji I, Ohuchi N (2010) Reproductive factors, exogenous female hormone use and breast cancer risk in Japanese: the Miyagi Cohort Study. Cancer Causes Control 21:135–145
Kawai M, Minami Y, Kuriyama S, Kakizaki M, Kakugawa Y, Nishino Y, Ishida T, Fukao A, Tsuji I, Ohuchi N (2010) Adiposity, adult weight change and breast cancer risk in postmenopausal Japanese women: the Miyagi Cohort study. Br J Cancer 103:1443–1447
Kawai M, Minami Y, Kakizaki M, Kakugawa Y, Nishino Y, Fukao A, Tsuji I, Ohuchi N (2011) Alcohol consumption and breast cancer risk in Japanese women: the Miyagi Cohort study. Breast Cancer Res Treat 128:817–825
Trichopoulos D (1990) Hypothesis: does breast cancer originate in utero? Lancet 335:939–940
Potischman N, Troisi R (1999) In utero and early life exposures in relation to risk of breast cancer. Cancer Causes Control 10:561–573
Okasha M, McCarron P, Gunnell D, Smith GD (2003) Exposure in childhood, adolescence and early adulthood and breast cancer risk: a systematic review of the literature. Breast Cancer Res Treat 78:223–276
Bittner JJ (1952) The genesis of breast cancer in mice. Tes Rep Biol Med 10:160–166
Vlahakis G, Heston WE, Chopra HC (1977) Transmission of mammary tumor virus in mouse strain DD: further support for the uniqueness of strain GR. J Natl Cancer Inst 59:1553–1555
Levine PH, Mesa-Tejada R, Keydar I, Tabbane F, Spiegelman S, Mourali N (1984) Increased incidence of mouse mammary tumor virus-related antigen in Tunisian patients with breast cancer. Int J Cancer 33:305–308
Wang Y, Holland JF, Bleiweiss IJ, Melana S, Liu X, Pelisson I, Cantarella A, Stellrecht K, Mani S, Pogo BGT (1995) Detection of mammary tumor virus ENV gene-like sequences in human breast cancer. Cancer Res 55:5173–5179
Sonnenschein C, Soto AM (1998) An updated review of environmental estrogen and androgen mimics and antagonists. J Steroid Biochem Mol Biol 65:143–150
Morriss FH (1986) Growth factors in milk. In: Howell RR, Morriss FH, Pickering LK (eds) Human milk in infant nutrition and health. Charles C. Thomas, Springfield
Oddy WH (2002) The impact of breast milk on infant and child health. Breastfeed Rev 10:5–18
Arenz S, Rückerl R, Koletzko B, von Kries R (2004) Breast-feeding and childhood obesity—a systematic review. Int J Obes Relat Metab Disord 28:1247–1256
Owen CG, Martin RM, Whincup PH, Smith GD, Cook DG (2005) Effect of infant feeding on the risk of obesity across the life course: a quantitative review of published evidence. Pediatrics 115:1367–1377
De Stavola BL, dos Santos Silva I, McCormack V, Hardy RJ, Kuh DJ, Wadsworth MEJ (2004) Childhood growth and breast cancer. Am J Epidemiol 159:671–682
Ahlgren M, Melbye M, Wohlfahrt J, Sørensen TIA (2004) Growth patterns and the risk of breast cancer in women. N Engl J Med 351:1619–1626
Freudenheim JL, Marshall JR, Graham S, Laughlin R, Vena JE, Bandera E, Muti P, Swanson M, Nemoto T (1994) Exposure to breastmilk in infancy and the risk of breast cancer. Epidemiology 5:324–331
Weiss HA, Potischman NA, Brinton LA, Brogan D, Coates RJ, Gammon MD, Malone KE, Schoenberg JB (1997) Prenatal and perinatal risk factors for breast cancer in young women. Epidemiology 8:181–187
Nichols HB, Trentham-Dietz A, Sprague BL, Hampton JM, Titus-Ernstoff L, Newcomb PA (2008) Effects of birth order and maternal age on breast cancer risk: modification by whether women had been breast-fed. Epidemiology 19:417–423
Michels KB, Trichopoulos D, Rosner BA, Hunter DJ, Colditz GA, Hankinson SE, Speizer FE, Willett WC (2001) Being breastfed in infancy and breast cancer incidence in adult life: results from the two nurses’ health studies. Am J Epidemiol 153:275–283
Martin RM, Missleton N, Gunnell D, Owen CG, Smith GD (2005) Breast-feeding and cancer: the Boyd Orr cohort and a systematic review with meta-analysis. J Natl Cancer Inst 97:1446–1457
Ekbom A, Hsieh CC, Trichppoulos YY, Petridou E, Adami HO (1993) Breast-feeding and breast cancer in the offspring. Br J Cancer 67:842–845
Barba M, McCann SE, Nie J, Vito D, Stranges S, Fuhrman B, Trevisan M, Muti P, Freudenheim JL (2006) Perinatal exposure and breast cancer risk in the Western New York exposures and breast cancer (WEB) study. Cancer Causes Control 17:395–401
Wise LA, Titus-Ernstoff L, Newcomb PA, Trentham-Dietz A, Trichopoulos D, Hampton JM, Egan KM (2009) Exposure to breast milk in infancy and risk of breast cancer. Cancer Causes Control 20:1083–1090
Wise LA, Titus-Ernstoff L (2010) Exposure to breast milk in infancy and risk of adult breast cancer: more scientific data are needed. J Epidemiol Community Health 64:745–746
Tsuchiya F (1989) History of formula milk in Japan. Perinatal Med 19:83–86 in Japanese
Uetani Y (2001) History of bottle-feeding in Japan. Perinatal Med 31:347–356 in Japanese
History of bottle-feeding in Japan (2011) Japan dairy industry association. http://www.nyukyou.jp/dairy/powdered/powdered05.html. Accessed 12 Dec 2011 (in Japanese)
The list of pesticides (2011) Food and Agricultural Materials Inspection Center (FAMIC). http://www.acis.famic.go.jp/ddownload/index.htm. Accessed 12 Dec 2011 (in Japanese)
Minami Y, Tateno H (2003) Associations between cigarette smoking and the risk of four leading cancers in Miyagi Prefecture, Japan: a multi-site case-control study. Cancer Sci 94:540–547
Minami Y, Tochigi T, Kawamura S, Tateno H, Hoshi S, Nishino Y, Kuwahara M (2008) Height, urban-born and prostate cancer risk in Japanese men. Jpn J Clin Oncol 38:205–213
Breslow NE, Day NE (1980) The analysis of case-control studies. In: Davis W (ed) Statistical methods in cancer research, vol 1. International Agency for Research on Cancer, Lyon
Przyrembel H, Heinrich-Hirsch B, Vieth B (2000) Exposition to and health effects of residues in human milk. Adv Exp Med Biol 478:307–325
Massart F, Harrell JC, Federico G, Saggese G (2005) Human breast milk and xenoestrogen exposure: a possible impact on human health. J Perinatol 25:282–288
Collaborative Group on Hormonal Factors in Breast Cancer (2002) Breast cancer and breastfeeding: collaborative reanalysis of individual data from 47 epidemiological studies in 30 countries, including 50302 women with breast cancer and 96973 women without the disease. Lancet 360:187–195
Brinton LA, Hoover R, Fraumeni JF Jr (1983) Reproductive factors in the aetiology of breast cancer. Br J Cancer 47:757–762
Titus-Ernstoff L, Egan KM, Newcomb PA, Baron JA, Stampfer M, Greenberg ER, Cole BF, Ding J, Willett W, Trichopoulos D (1998) Exposure to breast milk in infancy and adult breast cancer risk. J Natl Cancer Inst 90:921–924
Post RH (1966) Breast cancer, lactation, and genetics. Eugen Quart 13:1–29
Haku M (2007) Breastfeeding: factors associated with continuation of breastfeeding, the current situation in Japan, and recommendations for further research. J Med Invest 54:224–234
The Survey on the Nutrition of Infants and Preschool Children (1995) Ministry of health, labour and welfare. http://www.e-stat.go.jp/SG1/estat/GL08020103.do?_toGL08020103_&listID=000001047587&requestSender=dsearch. Accessed 12 Dec 2011 (in Japanese)
Lackmann GM, Schaller HK, Angerer J (2004) Organochlorine compounds in breast-fed vs. bottle-fed infants: preliminary results at six weeks of age. Sci Total Environ 329:289–293
Ribas-Fitó N, Grimalt JO, Marco E, Sala M, Mazón C, Sunyer J (2005) Breastfeeding and concentrations of HCB and p, p′-DDE at the age of 1 year. Environ Res 98:8–13
Cohn BA, Wolff MS, Cirillo PM, Sholtz RI (2007) DDT and breast cancer in young women: new data on the significance of age at exposure. Environ Health Perspect 115:1406–1414
Snedeker SM (2001) Pesticides and breast cancer risk: a review of DDT, DDE, and dieldrin. Environ Health Perspect 109(Suppl 1):35–47
Iwasaki M, Inoue M, Sasazuki S, Kurahashi N, Itoh H, Usuda M, Tsugane S, For the Japan Public Health Center-Based Prospective Study Group (2008) Plasma organochlorine levels and subsequent risk of breast cancer among Japanese women: a nested case-control study. Sci Total Environ 402:176–183
Yoneyama K, Nagata H, Asano H (1994) Growth of Japanese breast-fed and bottle-fed infants from birth to 20 months. Ann Hum Biol 21:597–608
Baer HJ, Tworoger SS, Hankinson SE, Willett WC (2010) Body fatness at young ages and risk of breast cancer throughout life. Am J Epidemiol 171:1183–1194
Sanderson M, Shu XO, Jin F, Dai Q, Ruan Z, Gao YT, Zheng W (2002) Weight at birth and adolescence and premenopausal breast cancer risk in a low-risk population. Br J Cancer 86:84–88
Rothman KJ, Greenland S (1998) Modern epidemiology, 2nd edn. Lippincott-Raven, Philadelphia
Acknowledgments
The authors are grateful to all staff members of the Miyagi Cancer Center who generously cooperated in this study. This work was supported by a grant for Scientific Research from the Ministry of Education, Culture, Sports, Science, and Technology, Japan (H23-Kiban B-23390169).
Conflict of interest
The authors declare that they have no conflicts of interest.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Minami, Y., Nishino, Y., Kawai, M. et al. Being breastfed in infancy and adult breast cancer risk among Japanese women. Cancer Causes Control 23, 389–398 (2012). https://doi.org/10.1007/s10552-011-9888-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10552-011-9888-3