Women with a history of infertility had increased hazards of HF and HFpEF. Age-adjusted and multivariable-adjusted Cox proportional hazards models begin follow-up at study enrollment. Multivariable-adjusted models were adjusted for age at screening, BMI, systolic blood pressure, hypertension treatment, DM, hyperlipidemia, smoking status (current and former), baseline CHD, and cohort (observational study or clinical trial). Abbreviations: CI = confidence interval, HF = heart failure, HFpEF = heart failure with preserved ejection fraction, HFrEF= heart failure with reduced ejection fraction, HR = hazard ratio