20 JAN 2022 (THU) 09:30-10:15 | 10:45–11:30 | 12:00-12:45 | 15:30–16:15

Departmental Research Seminars

Via Zoom: link will be provided upon successful registration

Registration: https://hkuems1.hku.hk/hkuems/ec_hdetail.aspx?guest=Y&ueid=80004

Enquiry: geog.event@hku.hk

 

[ 09:30-10:15 ]


Topic:

Effect modification of greenness on PM2.5 associated all-cause mortality in a multidrug-resistant tuberculosis cohort

Evidence for the association between PM2.5 and mortality among patients with tuberculosis (TB) is limited. Whether greenness protects air pollution-related mortality among patients with multidrug-resistant tuberculosis (MDR-TB) is completely unknown. We conducted a cohort study that integrated geospatial and epidemiological data to evaluate the impact of air pollution on survival among patients after infections with MDR-TB. We also evaluated the effect modification by greenness. The hazard ratio (HR) of 1.702 (95% CI, 1.680 to 1.725) was observed for PM2.5 associated with mortality for the full cohort. The risk was reduced for patients at the greatest level of greenness exposures with HR of 1.169 (1.162 to 1.175). Our findings suggested that individuals with MDR-TB could benefit from greenness by having attenuate