Epidemiology (Cambridge, Mass.) · 2024
The Association Between Ambient Particulate Matter Exposure and Anemia in HIV/AIDS Patients.
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Liang Wei, Han Aojing, Hou Dong, Li Ruihan, Hu Qilin, Shen Huanfeng, Jin Yalei, Xiang Hao
Аннотация
BACKGROUND: Anemia is common among HIV/AIDS patients, impacting prognosis. Particulate matter (PM) exposure is an understudied, potentially modifiable risk factor in this group.
METHODS: We gathered 36,266 hemoglobin (Hb) measurements from 6808 HIV/AIDS patients from the HIV/AIDS Comprehensive Response Information Management System from 1 January 2004 to 31 December 2021. We evaluated the relationship between Hb levels and short-term PM exposure using linear mixed-effects models. We used logistic regression to estimate the association of long-term PM exposure with baseline anemia prevalence and time-varying Cox models to estimate the association of long-term PM exposure with follow-up incidence of anemia. Mediation analysis explored the role of chronic kidney disease (CKD) in the association between PM exposure and anemia.
RESULTS: For every 5 µg/m³ increase in 28-day average PM 1 , Hb levels decreased by 0.43 g/l. For a 10 µg/m³ increase in PM 2.5 , Hb decreased by 0.55 g/l; for the same increase in PM 10, Hb decreased by 0.35 g/l. A 5 µg/m³ increase in 1-year average PM 1 corresponded to a 7% higher prevalence of anemia at baseline, a 10 µg/m³ increase in PM 2.5 to 8% higher prevalence, and a 10 µg/m³ increase in PM 10 to 6% higher prevalence. These rises in average PM concentrations during follow-up were associated with increased incident anemia by 54% (PM 1 ), 72% (PM 2.5 ), and 51% (PM 10 ). CKD partially mediated the positive associations between PM exposure and the incidence of anemia.
CONCLUSION: PM exposure was associated with lower Hb levels and higher incidence of anemia in HIV/AIDS patients and CKD with mediating estimated effects in PM-induced anemia.
METHODS: We gathered 36,266 hemoglobin (Hb) measurements from 6808 HIV/AIDS patients from the HIV/AIDS Comprehensive Response Information Management System from 1 January 2004 to 31 December 2021. We evaluated the relationship between Hb levels and short-term PM exposure using linear mixed-effects models. We used logistic regression to estimate the association of long-term PM exposure with baseline anemia prevalence and time-varying Cox models to estimate the association of long-term PM exposure with follow-up incidence of anemia. Mediation analysis explored the role of chronic kidney disease (CKD) in the association between PM exposure and anemia.
RESULTS: For every 5 µg/m³ increase in 28-day average PM 1 , Hb levels decreased by 0.43 g/l. For a 10 µg/m³ increase in PM 2.5 , Hb decreased by 0.55 g/l; for the same increase in PM 10, Hb decreased by 0.35 g/l. A 5 µg/m³ increase in 1-year average PM 1 corresponded to a 7% higher prevalence of anemia at baseline, a 10 µg/m³ increase in PM 2.5 to 8% higher prevalence, and a 10 µg/m³ increase in PM 10 to 6% higher prevalence. These rises in average PM concentrations during follow-up were associated with increased incident anemia by 54% (PM 1 ), 72% (PM 2.5 ), and 51% (PM 10 ). CKD partially mediated the positive associations between PM exposure and the incidence of anemia.
CONCLUSION: PM exposure was associated with lower Hb levels and higher incidence of anemia in HIV/AIDS patients and CKD with mediating estimated effects in PM-induced anemia.