2.1 Data sources
This study was conducted by MOOSE guidelines32. A
search of the literature up to January 2020 was performed from the
databases of PubMed, Web of Science, Wan fang, VIP
(Chinese
scientific and technical journal database) and CNKI (National Knowledge
Infrastructure of China). The following search terms were used:exposure
(“hysterectomy” or “surgical removal of the uterus”) and outcomes
(“heart disease” or “CVD” or “cardiovascular disease” or “CAD”
or “CHD” or “coronary artery disease” or “coronary heart disease”
or “ischemic heart disease” or “hypertension” or “high blood
pressure” or “stroke” or “arrhythmias” or “myocardial infarction”
or “angina pectoris” or “heart failure”). The language was
restricted to English and Chinese. Furthermore, relevant studies which
were not captured by our database searches but listed as the
bibliographies
of selected articles were also included.