Finding F-0675

“There was no significant relationship between NO2 concentration and rescue medication use or health care utilization [rescue medication use OR = 1.00 (95% confidence interval [CI], 0.93–1.07); unscheduled doctor’s visit OR = 0.99 (95% CI, 0.92–1.35); asthma-related hospital visit OR = 1.13 (95% CI, 0.69–1.09); emergency department visit for asthma OR = 0.88 (95% CI, 0.83–1.17)].”

Bishop A Longitudinal Study of Indoor Nitrogen Dioxide Levels and Respiratory Symptoms in Inner-City Children with Asthma (2008). Environmental health perspectives. Page 3. CKB 6656

Structure

Factor: Nitrogen dioxide (NO₂)
Outcome: Hospitalisation
Population: inner-city children aged 2-6 years with asthma
Setting: child's bedroom, US
Study design: longitudinal study of 150 inner-city children aged 2-6 years with physician-diagnosed asthma in Baltimore: indoor air monitored for 72 hours in the child's bedroom at baseline, 3 and 6 months, caregiver questionnaire on asthma symptoms in the previous two weeks and health care use (class 3)
Effect: OR 1.13 (0.69–1.09) per 20 ppb
Sample: 150 children
Flags: source-inconsistent
Caveat: null result; the printed interval (0.69-1.09) does not contain the estimate 1.13, so the paper's own numbers are inconsistent

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.