Finding F-0702

“Median household NO2 concentrations were 12 ppb [IQR 8–20], with no statistically significant difference by HIV (p = 0.98) or smoking status (p = 0.48).”

Unraveling the impact of indoor air pollution on respiratory health in people living with HIV within a high-prevalence HIV cohort (2025). BMC Pulm Med. Page 5. CKB 1096

Structure

Factor: Nitrogen dioxide (NO₂)
Population: persons living with HIV and persons at risk for HIV
Setting: home, US
Study design: Baltimore cohort of persons living with HIV and persons at risk for HIV (SHIELD): 1997 participants with baseline questionnaires and spirometry for reported household exposures, plus a 36-home pilot (SHIELD Home) with weeklong direct measurement of household PM2.5 and NO2; logistic and quantile regression adjusted for age, sex, smoking, race, HIV serostatus and lung function (class 3)
Effect: median 12
Averaging time: 1 week
Sample: 36 homes
Caveat: the same 12 ppb is the interquartile range the pilot used as the increment in its NO2 models

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.