Second Trimester Sunlight and Asthma: Evidence from Two Independent Studies

We thank Amitabh Chandra and Scott Weiss, MD, for detailed comments and suggestions, and seminar participants at the Leonard Davis Institute, Princeton's Center for Health and Wellbeing, and MIT. We also thank Bob Krasowski of the Centers for Disease Control, and Jean Roth and the rest of the staff at NBER for outstanding assistance compiling our datasets, and Diane Alexander, Asaf Bernstein, Hoyt Bleakley, Anne Case, Alma Cohen, Janet Currie, David Cutler, Moshe Hazan, Fernanda Marquez Padilla, Sarah Moshary, Paul Murphy, Stephen Murphy, Joseph Newhouse, Jessica Pickett, Analia Schlosser, Benjamin Sommers, Heidi Williams, and especially Adam Sacarny for valuable comments. Wernerfelt gratefully acknowledges the support of an NSF Graduate Research Fellowship. This paper explored allergy and asthma emergency rates in children using outpatient data from Arizona and New Jersey, State Emergency Department Databases (SEDD), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality. The findings and conclusions in this paper are those of the authors and do not necessarily represent the views of the Research Data Center, the National Center for Health Statistics, the Centers for Disease Control and Prevention, or the National Bureau of Economic Research.