Mira J Qureshi, Amanda P Miller, Stephen Mugamba, Emmanuel Kyasanku, Fred Nalugoda, Robert Malyabe Bulamba, Godfrey Kigozi, Gertrude Nakigozi, James Nkale, Phillip Kato, Grace Kigozi Nalwoga, Stephen Watya, Jennifer A Wagman
Women's access to family planning and experiences of reproductive coercion during the COVID-19 lockdown in two districts of Uganda
Heliyon
exposure air pollutants wellestablished cause asthma exacerbation children whether air pollutants play role development childhood asthma however remains uncertain examine whether decreasing regional air pollutants associated reduced incidence childhood asthma multilevel longitudinal cohort drawn 3 waves southern california childrens health study period air pollution decline cohort followed 4th 12th grade 8 years 19932001 19962004 20062014 final followup data june 2014 populationbased recruitment public elementary schools total 4140 children history asthma residing 1 9 childrens health study communities baseline included annual mean communitylevel ozone nitrogen dioxide particulate matter less 10 pm10 less 25 pm25 baseline year 3 cohorts prospectively identified incident asthma collected via questionnaires followup among 4140 children included study mean sd age baseline 95 06 years 526 female n 2 179 586 white n 2273 422 hispanic n 1686 525 incident asthma cases identified nitrogen dioxide incidence rate ratio irr asthma 080 95 ci 071090 median reduction 43 parts per billion absolute incidence rate decrease 083 cases per 100 personyears pm25 irr 081 95 ci 067098 median reduction 81 gm3 absolute incidence rate decrease 153 cases per 100 personyears ozone irr asthma 085 95 ci 071102 median reduction 89 parts per billion absolute incidence rate decrease 078 cases per 100 personyears pm10 irr 093 95 ci 082107 median reduction 40 gm3 absolute incidence rate decrease 046 cases per 100 personyears among children southern california decreases ambient nitrogen dioxide pm25 1993 2014 significantly associated lower asthma incidence statistically significant associations ozone pm10