Zeyan Liew

Zeyan Pic
Postdoc in the Dept. of Epidemiology, UCLA Fielding School of Public Health
Visiting Scientist, Harvard T.H. Chan School of Public Health

Research Interests

My research interests are in the field of environmental and reproductive epidemiology, fetal-programming and neurodevelopment. In particular, I am interested to study exposures of a wide range of environmental factors during critical periods of fetal development and how they impact health outcomes of the offspring over the lifespan. I was fortunate to be given the opportunity to utilize some unique and large-scale population-based cohorts and register data for research, which include (1) the Danish National Birth Cohort (DNBC), a prospective pregnancy cohort of approximately 100,000 women and their offspring which is currently in its 17th year of follow-up, (2) Danish and other Nordic medical registers and biobank data that span up to three decades and two generations, (3) statewide birth records and disease registers in California, and recently (4) mental health outcomes among children enrolled in the U.S. Nurses’ Health Study working with Weisskopf’s lab. Neurodevelopmental and psychological disorders in children and young adults have been my primary research focus, in relations to early life exposures to endocrine disrupting chemicals, including persistent organic pollutants (POPs) and pesticides, and also pharmaceutical agent such as acetaminophen using these data source. I am also interested in methodological research specifically in causal inference and bias analyses.

Select Publications

1. Liew Z, Ritz B, Bonefeld E, Henriksen T, Nohr E, Bech B, Fei C, Bossi R, von Ehrenstein O, Streja E, Uldall P, Olsen J. Prenatal exposure to perfluoroalkyl substances and risk of congenital cerebral palsy in children. Am J Epidemiol. 2014;180:574-81.

2. Liew Z, Ritz B, von Ehrenstein OS, Bech BH, Nohr EA, Fei C, Bossi R, Henriksen TB, Bonefeld-Jørgensen EC, Olsen J. Attention-decitie/hyperactivity disorder and childhood autism in association with prenatal exposure to perfluoroalkyl substances: a nested case-control study in the Danish National Birth Cohort. Environ Health Perspect. 2015;123:367-73.

3. Liew Z, Ritz B, Rebordosa C, Lee PC, Olsen J. Acetaminophen use during pregnancy, behavioral problems, and hyperkinetic d JAMA Pediatr. 2014;168:313-320.

4. Liew Z, Ritz B, Virk J, Olsen J. Maternal use of acetaminophen during pregnancy and risk of autism spectrum disorders in childhood: a Danish National Birth Cohort study. Autism Research 2015 Dec 21. doi: 10.1002/aur.1591.

5. Virk J, Liew Z, Olsen J, Nohr EA, Catov JM, Ritz B. Preconceptional and prenatal supplementary folic acid and multivitamin intake and autism spectrum disorders. Autism. 2015 Sep pii: 1362361315604076.

6. Liew Z, Olsen J, Xin C, Ritz B, Arah OA. Bias from conditioning on live birth in pregnancy cohorts: an illustration based on neurodevelopment in children after prenatal exposure to organic pollutants. Int J Epidemiol. 2015;44:345-54.

7. Liu X, Liew Z, Olsen J, Pedersen LH, Bech BH, Agerbo E, Yuan W, Li J. Association of prenatal exposure to acetaminophen and coffee with childhood asthma. Pharmacoepidemiol Drug Saf. 2016;25:188-95.

8. CC Bach, Liew Z, BH Bach, Nohr EA, Fei C, Bonefeld-Jorgensen EC, Henriksen TB, Olsen J. Perfluoroalkyl acids and time to pregnancy revisited: An update from the Danish National Birth Cohort. Environ Health. 2015;7:14-59.


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