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Baseline recreational physical activity, history of sports participation, and postmenopausal breast carcinoma risk in the Netherlands Cohort Study.
Cancer 2001; 92(6):1638-49C

Abstract

BACKGROUND

The aim of the current study was to evaluate the relation between physical activity and breast carcinoma risk with specific emphasis on interaction with other aspects of energy balance.

METHODS

The Netherlands Cohort Study on diet and cancer was conducted among 62,537 women ages 55-69 years at baseline. Information regarding baseline recreational physical activity, history of sports participation, and occupational physical activity was collected with a questionnaire in 1986. After 7.3 years of follow-up, 1208 incident breast carcinoma cases were available for case-cohort analyses.

RESULTS

A summed total of baseline recreational physical activity (including walking, cycling, gardening) showed an inverse association with breast carcinoma risk. Women who were active in the above-mentioned activities for > 90 minutes a day had a rate ratio (RR) of 0.76 (95% confidence interval [95% CI], 0.58-0.99) compared with women who were active < 30 minutes a day. Women who ever participated into sports before baseline had a RR of 1.13 (95% CI, 0.94-1.37) compared with women who never participated in sports. The relation between sports participation and breast carcinoma risk did not appear to be dependent on the time window of participation (before/after menarche, before/after birth of the first child, before/after age 20 years). No interaction was found between baseline recreational physical activity, body mass index (BMI) (kg/m(2)), energy intake, and weight gain/loss during adult life in relation to breast carcinoma, although in the subgroup of women with a high BMI we found a stronger inverse relation between recreational physical activity and breast carcinoma risk independent of energy intake. Occupational physical activity was not found to be related to breast carcinoma risk.

CONCLUSIONS

The current study findings support the hypothesis that recreational physical activity is associated inversely with breast carcinoma risk.

Authors+Show Affiliations

Department of Epidemiology, Maastricht University, Maastricht, The Netherlands. MJM.Dirx@epid.unimaas.nlNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11745243

Citation

Dirx, M J., et al. "Baseline Recreational Physical Activity, History of Sports Participation, and Postmenopausal Breast Carcinoma Risk in the Netherlands Cohort Study." Cancer, vol. 92, no. 6, 2001, pp. 1638-49.
Dirx MJ, Voorrips LE, Goldbohm RA, et al. Baseline recreational physical activity, history of sports participation, and postmenopausal breast carcinoma risk in the Netherlands Cohort Study. Cancer. 2001;92(6):1638-49.
Dirx, M. J., Voorrips, L. E., Goldbohm, R. A., & van den Brandt, P. A. (2001). Baseline recreational physical activity, history of sports participation, and postmenopausal breast carcinoma risk in the Netherlands Cohort Study. Cancer, 92(6), pp. 1638-49.
Dirx MJ, et al. Baseline Recreational Physical Activity, History of Sports Participation, and Postmenopausal Breast Carcinoma Risk in the Netherlands Cohort Study. Cancer. 2001 Sep 15;92(6):1638-49. PubMed PMID: 11745243.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Baseline recreational physical activity, history of sports participation, and postmenopausal breast carcinoma risk in the Netherlands Cohort Study. AU - Dirx,M J, AU - Voorrips,L E, AU - Goldbohm,R A, AU - van den Brandt,P A, PY - 2001/12/18/pubmed PY - 2002/1/10/medline PY - 2001/12/18/entrez SP - 1638 EP - 49 JF - Cancer JO - Cancer VL - 92 IS - 6 N2 - BACKGROUND: The aim of the current study was to evaluate the relation between physical activity and breast carcinoma risk with specific emphasis on interaction with other aspects of energy balance. METHODS: The Netherlands Cohort Study on diet and cancer was conducted among 62,537 women ages 55-69 years at baseline. Information regarding baseline recreational physical activity, history of sports participation, and occupational physical activity was collected with a questionnaire in 1986. After 7.3 years of follow-up, 1208 incident breast carcinoma cases were available for case-cohort analyses. RESULTS: A summed total of baseline recreational physical activity (including walking, cycling, gardening) showed an inverse association with breast carcinoma risk. Women who were active in the above-mentioned activities for > 90 minutes a day had a rate ratio (RR) of 0.76 (95% confidence interval [95% CI], 0.58-0.99) compared with women who were active < 30 minutes a day. Women who ever participated into sports before baseline had a RR of 1.13 (95% CI, 0.94-1.37) compared with women who never participated in sports. The relation between sports participation and breast carcinoma risk did not appear to be dependent on the time window of participation (before/after menarche, before/after birth of the first child, before/after age 20 years). No interaction was found between baseline recreational physical activity, body mass index (BMI) (kg/m(2)), energy intake, and weight gain/loss during adult life in relation to breast carcinoma, although in the subgroup of women with a high BMI we found a stronger inverse relation between recreational physical activity and breast carcinoma risk independent of energy intake. Occupational physical activity was not found to be related to breast carcinoma risk. CONCLUSIONS: The current study findings support the hypothesis that recreational physical activity is associated inversely with breast carcinoma risk. SN - 0008-543X UR - https://www.unboundmedicine.com/medline/citation/11745243/Baseline_recreational_physical_activity_history_of_sports_participation_and_postmenopausal_breast_carcinoma_risk_in_the_Netherlands_Cohort_Study_ L2 - https://medlineplus.gov/breastcancer.html DB - PRIME DP - Unbound Medicine ER -