Wang, Yao-ChinYao-ChinWangABEL PO-HAO HUANGYuan, Sheng-PoSheng-PoYuanHuang, Chu-YaChu-YaHuangWu, Chieh-ChenChieh-ChenWuPoly, Tahmina NasrinTahmina NasrinPolyAtique, SulemanSulemanAtiqueKung, Woon-ManWoon-ManKung2021-08-302021-08-3020211875-85840953-4180https://scholars.lib.ntu.edu.tw/handle/123456789/579851We systematically searched articles on electronic databases such as PubMed, Embase, Scopus, and Google Scholar between January 1, 2000 and July 30, 2020. Articles were independently evaluated by two authors. We included observational studies (case-control and cohort) and calculated the risk ratios (RRs) for associated with anemia and PD. Heterogeneity among the studies was assessed using the Q and I 2 statistic. We utilized the random-effect model to calculate the overall RR with 95% CI.en[SDGs]SDG3anemia; Article; disease association; gender; human; Parkinson disease; risk assessment; risk factor; systematic review; anemia; case control study; cohort analysis; complication; female; male; meta analysis; Parkinson disease; risk; Anemia; Case-Control Studies; Cohort Studies; Female; Humans; Male; Parkinson Disease; Riskjournal article10.1155/2021/8360627343062502-s2.0-85111068952https://api.elsevier.com/content/abstract/scopus_id/85111068952