Change in Physical Activity and Sitting Time After Myocardial Infarction and Mortality Among Postmenopausal Women in the Women's Health Initiative-Observational Study

Journal of the American Heart Association
Anna M GorczycaAndrea K Chomistek

Abstract

How physical activity (PA) and sitting time may change after first myocardial infarction (MI) and the association with mortality in postmenopausal women is unknown. Participants included postmenopausal women in the Women's Health Initiative-Observational Study, aged 50 to 79 years who experienced a clinical MI during the study. This analysis included 856 women who had adequate data on PA exposure and 533 women for sitting time exposures. Sitting time was self-reported at baseline, year 3, and year 6. Self-reported PA was reported at baseline through year 8. Change in PA and sitting time were calculated as the difference between the cumulative average immediately following MI and the cumulative average immediately preceding MI. The 4 categories of change were: maintained low, decreased, increased, and maintained high. The cut points were ≥7.5 metabolic equivalent of task hours/week versus <7.5 metabolic equivalent of task hours/week for PA and ≥8 h/day versus <8 h/day for sitting time. Cox proportional hazard models estimated hazard ratios and 95% CIs for all-cause, coronary heart disease, and cardiovascular disease mortality. Compared with women who maintained low PA (referent), the risk of all-cause mortality was: 0.54 (0.34-0...Continue Reading

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Citations

Feb 1, 2019·Circulation·Emelia J BenjaminUNKNOWN American Heart Association Council on Epidemiology and Prevention Statistics Committee and Stroke Statistics Subcommittee
Jan 30, 2020·Circulation·Salim S ViraniUNKNOWN American Heart Association Council on Epidemiology and Prevention Statistics Committee and Stroke Statistics Subcommittee
Feb 23, 2020·Medicine and Science in Sports and Exercise·Laila Al-ShaarWalter C Willett
May 7, 2020·European Journal of Cardiovascular Nursing : Journal of the Working Group on Cardiovascular Nursing of the European Society of Cardiology·Amanda EkÖrjan Ekblom
Dec 19, 2018·Journal of the American Heart Association·Orjan EkblomMats Börjesson
Jan 28, 2021·Circulation·Salim S ViraniUNKNOWN American Heart Association Council on Epidemiology and Prevention Statistics Committee and Stroke Statistics Subcommittee
Jul 31, 2021·American Journal of Preventive Cardiology·Ville VasankariJuha Hartikainen

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Methods Mentioned

BETA
coronary
percutaneous transluminal coronary angioplasty
coronary artery bypass
hormone replacement therapy

Software Mentioned

SAS

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