Time series analysis of total and direct associations between high temperatures and preterm births in Detroit, Michigan.

ABSTRACT:

Objectives

Preterm births (PTBs) represent significant health risks, and several studies have found associations between high outdoor temperatures and PTB. We estimated both the total and natural direct effects (independent of particulate matter, ozone and nitrogen dioxide air pollutants) of the prior 2-day mean apparent temperature (AT) on PTB. We evaluated effect modification by maternal age, race, education, smoking status and prenatal care.

Design and setting

We obtained birth records and meteorological data for the Detroit, Michigan, USA area, for the warm months (May to September), 1991 to 2001. We used a time series Poisson regression with splines of AT, wind speed, solar radiation and citywide average precipitation to estimate total effects. To accommodate multiple m

SUBMITTER: Gronlund CJ 

PROVIDER: S-EPMC7045030 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature