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Published in: Cancer Causes & Control 11/2010

01-11-2010 | Original paper

Leisure-time physical activity and breast cancer risk by hormone receptor status: effective life periods and exercise intensity

Published in: Cancer Causes & Control | Issue 11/2010

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Abstract

Objective

Physical activity may decrease breast cancer risk. However, it is unclear what intensity of exercise and during which life periods this effect on decreasing risk is efficiently expressed, and whether the associations differ by the estrogen-/progesterone- receptor (ER/PR) status of tumors. We investigated associations between age- and intensity-specific leisure-time physical activity and ER/PR-defined breast cancer risk.

Methods

We conducted a hospital-based case–control study in Nagano, Japan. Subjects were 405 cases newly diagnosed (>99% known ER/PR) from 2001 to 2005, who were age-/area-matched with 405 controls. Activity was assessed with a self-reported questionnaire which considered intensity level (moderate and/or strenuous) at different ages (at 12 and 20 years, and in the previous 5 years). Odds ratios (ORs) and 95% confidence intervals were calculated using logistic regression.

Results

Strenuous but not moderate physical activity at age 12 was inversely associated with pre- and postmenopausal breast cancer risk across ER/PR subtypes [overall OR≥5 days/week vs. none = 0.24 (0.14–0.43)]. Moderate physical activity in the previous 5 years was significantly associated with a decrease in risk for postmenopausal ER + PR + tumors only [OR≥1 day/week vs. none = 0.35 (0.18–0.67)].

Conclusion

Strenuous activity in teens and moderate activity after menopause may contribute to a reduction in breast cancer risk.
Appendix
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Literature
1.
go back to reference Matsuda T, Marugame T, Kamo KI, Katanoda K, Ajiki W, Sobue T (2009) Cancer incidence and incidence rates in Japan in 2003: based on data from 13 Population-based Cancer Registries in the Monitoring of Cancer Incidence in Japan (MCIJ) Project. Jpn J Clin Oncol.hyp106 [pii]10.1093/jjco/hyp106 Matsuda T, Marugame T, Kamo KI, Katanoda K, Ajiki W, Sobue T (2009) Cancer incidence and incidence rates in Japan in 2003: based on data from 13 Population-based Cancer Registries in the Monitoring of Cancer Incidence in Japan (MCIJ) Project. Jpn J Clin Oncol.hyp106 [pii]10.​1093/​jjco/​hyp106
2.
go back to reference Maruti SS, Willett WC, Feskanich D, Rosner B, Colditz GA (2008) A prospective study of age-specific physical activity and premenopausal breast cancer. J Natl Cancer Inst 100:728–737CrossRefPubMed Maruti SS, Willett WC, Feskanich D, Rosner B, Colditz GA (2008) A prospective study of age-specific physical activity and premenopausal breast cancer. J Natl Cancer Inst 100:728–737CrossRefPubMed
3.
go back to reference World Cancer Resarch Fund/American Institute for Cancer Resarch (2007) Food, nutrition, physical activity, and the prevention of cancer: a global perspective. AICR, Washington DC, p 289 World Cancer Resarch Fund/American Institute for Cancer Resarch (2007) Food, nutrition, physical activity, and the prevention of cancer: a global perspective. AICR, Washington DC, p 289
4.
go back to reference Sternfeld B, Bhat AK, Wang H, Sharp T, Quesenberry CP Jr (2005) Menopause, physical activity, and body composition/fat distribution in midlife women. Med Sci Sports Exerc 37:1195–1202CrossRefPubMed Sternfeld B, Bhat AK, Wang H, Sharp T, Quesenberry CP Jr (2005) Menopause, physical activity, and body composition/fat distribution in midlife women. Med Sci Sports Exerc 37:1195–1202CrossRefPubMed
5.
go back to reference van Gils CH, Peeters PH, Schoenmakers MC, Nijmeijer RM, Onland-Moret NC, van der Schouw YT, Monninkhof EM (2009) Physical activity and endogenous sex hormone levels in postmenopausal women: a cross-sectional study in the Prospect-EPIC Cohort. Cancer Epidemiol Biomarkers Prev 18: 377–383. 1055-9965.EPI-08-0823 [pii]10.1158/1055-9965.EPI-08-0823 van Gils CH, Peeters PH, Schoenmakers MC, Nijmeijer RM, Onland-Moret NC, van der Schouw YT, Monninkhof EM (2009) Physical activity and endogenous sex hormone levels in postmenopausal women: a cross-sectional study in the Prospect-EPIC Cohort. Cancer Epidemiol Biomarkers Prev 18: 377–383. 1055-9965.EPI-08-0823 [pii]10.​1158/​1055-9965.​EPI-08-0823
6.
go back to reference Frisch RE, Gotz-Welbergen AV, McArthur JW, Albright T, Witschi J, Bullen B, Birnholz J, Reed RB, Hermann H (1981) Delayed menarche and amenorrhea of college athletes in relation to age of onset of training. JAMA 246:1559–1563CrossRefPubMed Frisch RE, Gotz-Welbergen AV, McArthur JW, Albright T, Witschi J, Bullen B, Birnholz J, Reed RB, Hermann H (1981) Delayed menarche and amenorrhea of college athletes in relation to age of onset of training. JAMA 246:1559–1563CrossRefPubMed
7.
go back to reference Bernstein L, Ross RK, Lobo RA, Hanisch R, Krailo MD, Henderson BE (1987) The effects of moderate physical activity on menstrual cycle patterns in adolescence: implications for breast cancer prevention. Br J Cancer 55:681–685PubMed Bernstein L, Ross RK, Lobo RA, Hanisch R, Krailo MD, Henderson BE (1987) The effects of moderate physical activity on menstrual cycle patterns in adolescence: implications for breast cancer prevention. Br J Cancer 55:681–685PubMed
8.
go back to reference Regensteiner JG, Mayer EJ, Shetterly SM, Eckel RH, Haskell WL, Marshall JA, Baxter J, Hamman RF (1991) Relationship between habitual physical activity and insulin levels among nondiabetic men and women. San Luis Valley Diabetes Study, Diabetes Care 14:1066–1074 Regensteiner JG, Mayer EJ, Shetterly SM, Eckel RH, Haskell WL, Marshall JA, Baxter J, Hamman RF (1991) Relationship between habitual physical activity and insulin levels among nondiabetic men and women. San Luis Valley Diabetes Study, Diabetes Care 14:1066–1074
9.
go back to reference Raastad T, Bjoro T, Hallen J (2000) Hormonal responses to high- and moderate-intensity strength exercise. Eur J Appl Physiol 82:121–128CrossRefPubMed Raastad T, Bjoro T, Hallen J (2000) Hormonal responses to high- and moderate-intensity strength exercise. Eur J Appl Physiol 82:121–128CrossRefPubMed
10.
go back to reference Bernstein L, Ross RK (1993) Endogenous hormones and breast cancer risk. Epidemiol Rev 15:48–65PubMed Bernstein L, Ross RK (1993) Endogenous hormones and breast cancer risk. Epidemiol Rev 15:48–65PubMed
11.
go back to reference Lawlor DA, Smith GD, Ebrahim S (2004) Hyperinsulinaemia and increased risk of breast cancer: findings from the British Women’s Heart and Health Study. Cancer Causes Control 15:267–275CrossRefPubMed Lawlor DA, Smith GD, Ebrahim S (2004) Hyperinsulinaemia and increased risk of breast cancer: findings from the British Women’s Heart and Health Study. Cancer Causes Control 15:267–275CrossRefPubMed
12.
go back to reference Yu H, Rohan T (2000) Role of the insulin-like growth factor family in cancer development and progression. J Natl Cancer Inst 92:1472–1489CrossRefPubMed Yu H, Rohan T (2000) Role of the insulin-like growth factor family in cancer development and progression. J Natl Cancer Inst 92:1472–1489CrossRefPubMed
13.
go back to reference Hankinson SE, Willett WC, Colditz GA, Hunter DJ, Michaud DS, Deroo B, Rosner B, Speizer FE, Pollak M (1998) Circulating concentrations of insulin-like growth factor-I and risk of breast cancer. Lancet 351:1393–1396CrossRefPubMed Hankinson SE, Willett WC, Colditz GA, Hunter DJ, Michaud DS, Deroo B, Rosner B, Speizer FE, Pollak M (1998) Circulating concentrations of insulin-like growth factor-I and risk of breast cancer. Lancet 351:1393–1396CrossRefPubMed
14.
go back to reference Hoffman-Goetz L, e. (ed) (1996) Exercise and immune function. CRC Press, Boca Raton, FL Hoffman-Goetz L, e. (ed) (1996) Exercise and immune function. CRC Press, Boca Raton, FL
15.
go back to reference Ji LL (1996) Exercise, oxidative stress, and antioxidants. Am J Sports Med 24:S20–S24PubMed Ji LL (1996) Exercise, oxidative stress, and antioxidants. Am J Sports Med 24:S20–S24PubMed
16.
go back to reference Shephard RJ, Shek PN (1995) Cancer, immune function, and physical activity. Can J Appl Physiol 20:1–25PubMed Shephard RJ, Shek PN (1995) Cancer, immune function, and physical activity. Can J Appl Physiol 20:1–25PubMed
17.
go back to reference Lee IM, Rexrode KM, Cook NR, Hennekens CH, Burin JE (2001) Physical activity and breast cancer risk: the Women’s Health Study (United States). Cancer Causes Control 12:137–145CrossRefPubMed Lee IM, Rexrode KM, Cook NR, Hennekens CH, Burin JE (2001) Physical activity and breast cancer risk: the Women’s Health Study (United States). Cancer Causes Control 12:137–145CrossRefPubMed
18.
go back to reference McTiernan A, Kooperberg C, White E, Wilcox S, Coates R, Adams-Campbell LL, Woods N, Ockene J (2003) Recreational physical activity and the risk of breast cancer in postmenopausal women: the Women’s Health Initiative Cohort Study. JAMA 290:1331–1336CrossRefPubMed McTiernan A, Kooperberg C, White E, Wilcox S, Coates R, Adams-Campbell LL, Woods N, Ockene J (2003) Recreational physical activity and the risk of breast cancer in postmenopausal women: the Women’s Health Initiative Cohort Study. JAMA 290:1331–1336CrossRefPubMed
19.
go back to reference Bardia A, Hartmann LC, Vachon CM, Vierkant RA, Wang AH, Olson JE, Sellers TA, Cerhan JR (2006) Recreational physical activity and risk of postmenopausal breast cancer based on hormone receptor status. Arch Intern Med 166:2478–2483CrossRefPubMed Bardia A, Hartmann LC, Vachon CM, Vierkant RA, Wang AH, Olson JE, Sellers TA, Cerhan JR (2006) Recreational physical activity and risk of postmenopausal breast cancer based on hormone receptor status. Arch Intern Med 166:2478–2483CrossRefPubMed
20.
go back to reference Chlebowski RT, Anderson GL, Lane DS, Aragaki AK, Rohan T, Yasmeen S, Sarto G, Rosenberg CA, Hubbell FA (2007) Predicting risk of breast cancer in postmenopausal women by hormone receptor status. J Natl Cancer Inst 99:1695–1705CrossRefPubMed Chlebowski RT, Anderson GL, Lane DS, Aragaki AK, Rohan T, Yasmeen S, Sarto G, Rosenberg CA, Hubbell FA (2007) Predicting risk of breast cancer in postmenopausal women by hormone receptor status. J Natl Cancer Inst 99:1695–1705CrossRefPubMed
21.
go back to reference Dallal CM, Sullivan-Halley J, Ross RK, Wang Y, Deapen D, Horn-Ross PL, Reynolds P, Stram DO, Clarke CA, Anton-Culver H, Ziogas A, Peel D, West DW, Wright W, Bernstein L (2007) Long-term recreational physical activity and risk of invasive and in situ breast cancer: the California teachers study. Arch Intern Med 167:408–415CrossRefPubMed Dallal CM, Sullivan-Halley J, Ross RK, Wang Y, Deapen D, Horn-Ross PL, Reynolds P, Stram DO, Clarke CA, Anton-Culver H, Ziogas A, Peel D, West DW, Wright W, Bernstein L (2007) Long-term recreational physical activity and risk of invasive and in situ breast cancer: the California teachers study. Arch Intern Med 167:408–415CrossRefPubMed
22.
go back to reference Leitzmann MF, Moore SC, Peters TM, Lacey JV Jr., Schatzkin A, Schairer C, Brinton LA, Albanes D (2008) Prospective study of physical activity and risk of postmenopausal breast cancer. Breast Cancer Res 10: R92.bcr2190 [pii]10.1186/bcr2190 Leitzmann MF, Moore SC, Peters TM, Lacey JV Jr., Schatzkin A, Schairer C, Brinton LA, Albanes D (2008) Prospective study of physical activity and risk of postmenopausal breast cancer. Breast Cancer Res 10: R92.bcr2190 [pii]10.​1186/​bcr2190
23.
go back to reference Peters TM, Schatzkin A, Gierach GL, Moore SC, Lacey JV Jr, Wareham NJ, Ekelund U, Hollenbeck AR, Leitzmann MF (2009) Physical activity and postmenopausal breast cancer risk in the NIH-AARP diet and health study. Cancer Epidemiol Biomarkers Prev 18:289–296CrossRefPubMed Peters TM, Schatzkin A, Gierach GL, Moore SC, Lacey JV Jr, Wareham NJ, Ekelund U, Hollenbeck AR, Leitzmann MF (2009) Physical activity and postmenopausal breast cancer risk in the NIH-AARP diet and health study. Cancer Epidemiol Biomarkers Prev 18:289–296CrossRefPubMed
24.
go back to reference Enger SM, Ross RK, Paganini-Hill A, Carpenter CL, Bernstein L (2000) Body size, physical activity, and breast cancer hormone receptor status: results from two case-control studies. Cancer Epidemiol Biomarkers Prev 9:681–687PubMed Enger SM, Ross RK, Paganini-Hill A, Carpenter CL, Bernstein L (2000) Body size, physical activity, and breast cancer hormone receptor status: results from two case-control studies. Cancer Epidemiol Biomarkers Prev 9:681–687PubMed
25.
go back to reference Britton JA, Gammon MD, Schoenberg JB, Stanford JL, Coates RJ, Swanson CA, Potischman N, Malone KE, Brogan DJ, Daling JR, Brinton LA (2002) Risk of breast cancer classified by joint estrogen receptor and progesterone receptor status among women 20–44 years of age. Am J Epidemiol 156:507–516CrossRefPubMed Britton JA, Gammon MD, Schoenberg JB, Stanford JL, Coates RJ, Swanson CA, Potischman N, Malone KE, Brogan DJ, Daling JR, Brinton LA (2002) Risk of breast cancer classified by joint estrogen receptor and progesterone receptor status among women 20–44 years of age. Am J Epidemiol 156:507–516CrossRefPubMed
26.
go back to reference Bernstein L, Patel AV, Ursin G, Sullivan-Halley J, Press MF, Deapen D, Berlin JA, Daling JR, McDonald JA, Norman SA, Malone KE, Strom BL, Liff J, Folger SG, Simon MS, Burkman RT, Marchbanks PA, Weiss LK, Spirtas R (2005) Lifetime recreational exercise activity and breast cancer risk among black women and white women. J Natl Cancer Inst 97:1671–1679CrossRefPubMed Bernstein L, Patel AV, Ursin G, Sullivan-Halley J, Press MF, Deapen D, Berlin JA, Daling JR, McDonald JA, Norman SA, Malone KE, Strom BL, Liff J, Folger SG, Simon MS, Burkman RT, Marchbanks PA, Weiss LK, Spirtas R (2005) Lifetime recreational exercise activity and breast cancer risk among black women and white women. J Natl Cancer Inst 97:1671–1679CrossRefPubMed
27.
go back to reference Adams SA, Matthews CE, Hebert JR, et al (2006) Association of physical activity with hormone receptor status: the Shanghai Breast Cancer Study. Cancer Epidemiol Biomarkers Prev 15:1170–1178CrossRefPubMed Adams SA, Matthews CE, Hebert JR, et al (2006) Association of physical activity with hormone receptor status: the Shanghai Breast Cancer Study. Cancer Epidemiol Biomarkers Prev 15:1170–1178CrossRefPubMed
28.
go back to reference Schmidt ME, Steindorf K, Mutschelknauss E, Slanger T, Kropp S, Obi N, Flesch-Janys D, Chang-Claude J (2008) Physical activity and postmenopausal breast cancer: effect modification by breast cancer subtypes and effective periods in life. Cancer Epidemiol Biomarkers Prev 17:3402–3410CrossRefPubMed Schmidt ME, Steindorf K, Mutschelknauss E, Slanger T, Kropp S, Obi N, Flesch-Janys D, Chang-Claude J (2008) Physical activity and postmenopausal breast cancer: effect modification by breast cancer subtypes and effective periods in life. Cancer Epidemiol Biomarkers Prev 17:3402–3410CrossRefPubMed
29.
go back to reference Itoh H, Iwasaki M, Hanaoka T, et al (2009) Serum organochlorines and breast cancer risk in Japanese women: a case-control study. Cancer Causes Control 20:567–580CrossRefPubMed Itoh H, Iwasaki M, Hanaoka T, et al (2009) Serum organochlorines and breast cancer risk in Japanese women: a case-control study. Cancer Causes Control 20:567–580CrossRefPubMed
30.
go back to reference Inoue M, Yamamoto S, Kurahashi N, Iwasaki M, Sasazuki S, Tsugane S (2008) Daily total physical activity level and total cancer risk in men and women: results from a large-scale population-based cohort study in Japan. Am J Epidemiol 168:391–403CrossRefPubMed Inoue M, Yamamoto S, Kurahashi N, Iwasaki M, Sasazuki S, Tsugane S (2008) Daily total physical activity level and total cancer risk in men and women: results from a large-scale population-based cohort study in Japan. Am J Epidemiol 168:391–403CrossRefPubMed
31.
go back to reference Tsugane S, Kobayashi M, Sasaki S (2003) Validity of the self-administered food frequency questionnaire used in the 5-year follow-up survey of the JPHC study cohort I: comparison with dietary records for main nutrients. J Epidemiol 13:S51–S56PubMed Tsugane S, Kobayashi M, Sasaki S (2003) Validity of the self-administered food frequency questionnaire used in the 5-year follow-up survey of the JPHC study cohort I: comparison with dietary records for main nutrients. J Epidemiol 13:S51–S56PubMed
32.
go back to reference Ishihara J, Inoue M, Kobayashi M, Tanaka S, Yamamoto S, Iso H, Tsugane S (2006) Impact of the revision of a nutrient database on the validity of a self-administered food frequency questionnaire (FFQ). J Epidemiol 16:107–116CrossRefPubMed Ishihara J, Inoue M, Kobayashi M, Tanaka S, Yamamoto S, Iso H, Tsugane S (2006) Impact of the revision of a nutrient database on the validity of a self-administered food frequency questionnaire (FFQ). J Epidemiol 16:107–116CrossRefPubMed
33.
go back to reference The Council for Science and Technology: Ministry of Education C, S., Science and Technology, Japan (2005) ‘Standard Tables of Food Composition in Japan’, the fifth reviseed and enlarged edition Edition. National Printing Bureau, Tokyo The Council for Science and Technology: Ministry of Education C, S., Science and Technology, Japan (2005) ‘Standard Tables of Food Composition in Japan’, the fifth reviseed and enlarged edition Edition. National Printing Bureau, Tokyo
34.
go back to reference Marrett LD, Theis B, Ashbury FD (2000) Workshop report: physical activity and cancer prevention. Chronic Dis Can 21:143–149PubMed Marrett LD, Theis B, Ashbury FD (2000) Workshop report: physical activity and cancer prevention. Chronic Dis Can 21:143–149PubMed
35.
go back to reference Dreher D, Junod AF (1996) Role of oxygen free radicals in cancer development. Eur J Cancer 32A:30–38CrossRefPubMed Dreher D, Junod AF (1996) Role of oxygen free radicals in cancer development. Eur J Cancer 32A:30–38CrossRefPubMed
36.
go back to reference Moradi T, Nyren O, Zack M, Magnusson C, Persson I, Adami HO (2000) Breast cancer risk and lifetime leisure-time and occupational physical activity (Sweden). Cancer Causes Control 11:523–531CrossRefPubMed Moradi T, Nyren O, Zack M, Magnusson C, Persson I, Adami HO (2000) Breast cancer risk and lifetime leisure-time and occupational physical activity (Sweden). Cancer Causes Control 11:523–531CrossRefPubMed
37.
go back to reference Friedenreich CM, Courneya KS, Bryant HE (2001) Influence of physical activity in different age and life periods on the risk of breast cancer. Epidemiology 12:604–612CrossRefPubMed Friedenreich CM, Courneya KS, Bryant HE (2001) Influence of physical activity in different age and life periods on the risk of breast cancer. Epidemiology 12:604–612CrossRefPubMed
38.
go back to reference Cleland WH, Mendelson CR, Simpson ER (1985) Effects of aging and obesity on aromatase activity of human adipose cells. J Clin Endocrinol Metab 60:174–177CrossRefPubMed Cleland WH, Mendelson CR, Simpson ER (1985) Effects of aging and obesity on aromatase activity of human adipose cells. J Clin Endocrinol Metab 60:174–177CrossRefPubMed
39.
go back to reference London S, Willett W, Longcope C, McKinlay S (1991) Alcohol and other dietary factors in relation to serum hormone concentrations in women at climacteric. Am J Clin Nutr 53:166–171PubMed London S, Willett W, Longcope C, McKinlay S (1991) Alcohol and other dietary factors in relation to serum hormone concentrations in women at climacteric. Am J Clin Nutr 53:166–171PubMed
40.
go back to reference Goldin BR, Woods MN, Spiegelman DL, Longcope C, Morrill-LaBrode A, Dwyer JT, Gualtieri LJ, Hertzmark E, Gorbach SL (1994) The effect of dietary fat and fiber on serum estrogen concentrations in premenopausal women under controlled dietary conditions. Cancer 74:1125–1131CrossRefPubMed Goldin BR, Woods MN, Spiegelman DL, Longcope C, Morrill-LaBrode A, Dwyer JT, Gualtieri LJ, Hertzmark E, Gorbach SL (1994) The effect of dietary fat and fiber on serum estrogen concentrations in premenopausal women under controlled dietary conditions. Cancer 74:1125–1131CrossRefPubMed
41.
go back to reference Singh A, Hamilton-Fairley D, Koistinen R, Seppala M, James VH, Franks S, Reed MJ (1990) Effect of insulin-like growth factor-type I (IGF-I) and insulin on the secretion of sex hormone binding globulin and IGF-I binding protein (IBP-I) by human hepatoma cells. J Endocrinol 124:R1–R3CrossRefPubMed Singh A, Hamilton-Fairley D, Koistinen R, Seppala M, James VH, Franks S, Reed MJ (1990) Effect of insulin-like growth factor-type I (IGF-I) and insulin on the secretion of sex hormone binding globulin and IGF-I binding protein (IBP-I) by human hepatoma cells. J Endocrinol 124:R1–R3CrossRefPubMed
42.
go back to reference Shephard RJ, Rhind S, Shek PN (1995) The impact of exercise on the immune system: NK cells, interleukins 1 and 2, and related responses. Exerc Sport Sci Rev 23:215–241CrossRefPubMed Shephard RJ, Rhind S, Shek PN (1995) The impact of exercise on the immune system: NK cells, interleukins 1 and 2, and related responses. Exerc Sport Sci Rev 23:215–241CrossRefPubMed
43.
go back to reference Cui X, Zhang P, Deng W, Oesterreich S, Lu Y, Mills GB, Lee AV (2003) Insulin-like growth factor-I inhibits progesterone receptor expression in breast cancer cells via the phosphatidylinositol 3-kinase/Akt/mammalian target of rapamycin pathway: progesterone receptor as a potential indicator of growth factor activity in breast cancer. Mol Endocrinol 17:575–588CrossRefPubMed Cui X, Zhang P, Deng W, Oesterreich S, Lu Y, Mills GB, Lee AV (2003) Insulin-like growth factor-I inhibits progesterone receptor expression in breast cancer cells via the phosphatidylinositol 3-kinase/Akt/mammalian target of rapamycin pathway: progesterone receptor as a potential indicator of growth factor activity in breast cancer. Mol Endocrinol 17:575–588CrossRefPubMed
44.
go back to reference Wang M, Yu B, Westerlind K, et al (2009) Prepubertal physical activity up-regulates estrogen receptor beta, BRCA1 and p53 mRNA expression in the rat mammary gland. Breast Cancer Res Treat 115:213–220 Wang M, Yu B, Westerlind K, et al (2009) Prepubertal physical activity up-regulates estrogen receptor beta, BRCA1 and p53 mRNA expression in the rat mammary gland. Breast Cancer Res Treat 115:213–220
45.
go back to reference Breslow NE, Day NE (1980) Volume 1- the analysis of case-control studies. In: Davis W (ed) Statistical methods in cancer research: IARC Scientific Publication No. 32. International Agency For Research On Cancer, Lyon, pp 84–280 Breslow NE, Day NE (1980) Volume 1- the analysis of case-control studies. In: Davis W (ed) Statistical methods in cancer research: IARC Scientific Publication No. 32. International Agency For Research On Cancer, Lyon, pp 84–280
46.
go back to reference Fransson E, Knutsson A, Westerholm P, Alfredsson L (2008) Indications of recall bias found in a retrospective study of physical activity and myocardial infarction. J Clin Epidemiol 61:840–847CrossRefPubMed Fransson E, Knutsson A, Westerholm P, Alfredsson L (2008) Indications of recall bias found in a retrospective study of physical activity and myocardial infarction. J Clin Epidemiol 61:840–847CrossRefPubMed
Metadata
Title
Leisure-time physical activity and breast cancer risk by hormone receptor status: effective life periods and exercise intensity
Publication date
01-11-2010
Published in
Cancer Causes & Control / Issue 11/2010
Print ISSN: 0957-5243
Electronic ISSN: 1573-7225
DOI
https://doi.org/10.1007/s10552-010-9605-7

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