Haibo Zhou
No ORCID on file
· 3 papers in corpus
OBJECTIVE: This study aimed to investigate the association of reproductive hormones with primary dysmenorrhea in Chinese women. METHODS: A case-control study was conducted and patients with primary dysmenorrhea and non-dysmenorrhea partici…
Outcome-dependent sampling designs such as the case-control or case-cohort design are widely used in epidemiological studies for their outstanding cost-effectiveness. In this article, we propose and develop a smoothed weighted Gehan estimat…
Motivated by the need from our on-going environmental study in the Norwegian Mother and Child Cohort (MoBa) study, we consider an outcome-dependent sampling (ODS) scheme for failure-time data with censoring. Like the case-cohort design, the…