Johannes Carl, Paulina S Melby, Mette L Kurtzhals, Glen Nielsen, Peter Bentsen, Peter Elsborg
The Role of Physical Literacy in the Association Between Weather and Physical Activity: A Longitudinal Multilevel Analysis With 951 Children
Journal of physical activity & health
ambient air pollution associated restricted fetal growth linked adverse respiratory health childhood assessed effect maternal exposure low concentrations ambient air pollution birthweightwe pooled data 14 populationbased motherchild cohort studies 12 european countries overall study population included 74 178 women singleton deliveries feb 11 1994 june 2 2011 information infant birthweight gestational age sex available primary outcome interest low birthweight term weight 2500 g birth 37 weeks gestation mean concentrations particulate matter aerodynamic diameter less 25 pm25 less 10 pm10 25 10 pregnancy estimated maternal home addresses temporally adjusted landuse regression models pm25 absorbance concentrations nitrogen dioxide no2 nitrogen oxides also investigated traffic density nearest road total traffic load calculated pooled effect estimates randomeffects modelsa 5 gm3 increase concentration pm25 pregnancy associated increased risk low birthweight term adjusted odds ratio 118 95 ci 106133 increased risk also recorded pregnancy concentrations lower present european union annual pm25 limit 25 gm3 5 gm3 increase participants exposed concentrations less 20 gm3 141 95 ci 120165 pm10 10 gm3 increase 116 95 ci 100135 no2 10 gm3 increase 109 100119 traffic density nearest street increase 5000 vehicles per day 106 101111 also associated increased risk low birthweight term population attributable risk estimated reduction pm25 concentration 10 gm3 pregnancy corresponded decrease 22 95 ci 833 cases low birthweight termexposure ambient air pollutants traffic pregnancy associated restricted fetal growth substantial proportion cases low birthweight term could prevented europe urban air pollution reducedthe european union