Association Between Serum Glycated Hemoglobin Levels at Early Gestation and the Risk of Subsequent Pregnancy Loss in Pregnant Women Without Diabetes Mellitus: Prospective Cohort Study

Xiaotian Chen   ¹ , MSc ;   Yi Zhang   ¹ , MPH ;   Hongyan Chen   ¹ , PhD ;   Yalan Dou   ¹ , PhD ;   Yin Wang   ¹ , PhD ;   Wennan He   ¹ , MSc ;   Xiaojing Ma   ^{2, 3} , MD ;   Wei Sheng   ³ , PhD ;   Weili Yan   ^{1, 3, 4 *} , PhD ;   Guoying Huang   ^{2, 3, 4 *} , MD

¹ Department of Clinical Epidemiology & Clinical Trial Unit, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China

² Pediatric Heart Center, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China

³ Shanghai Key Laboratory of Birth Defects, Children’s Hospital of Fudan University, Shanghai, China

⁴ Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases (2018RU002), Chinese Academy of Medical Sciences, Shanghai, China

*these authors contributed equally