journal article
Download Only Collection
Home
Furusawa, Haruhiko; Peljto, Anna L; Walts, Avram D; Cardwell, Jonathan; Molyneaux, Philip L; Lee, Joyce S; Fernández Pérez, Evans R; Wolters, Paul J; Yang, Ivana V; Schwartz, David A
doi: 10.1136/thoraxjnl-2021-217693pmid:
Islam, Talat; Braymiller, Jessica; Eckel, Sandrah P; Liu, Feifei; Tackett, Alayna P; Rebuli, Meghan E; Barrington-Trimis, Jessica; McConnell, Rob
doi: 10.1136/thoraxjnl-2021-217041pmid: 35013000
RationaleDespite high prevalence of e-cigarette use (vaping), little is currently known regarding the health effects of secondhand nicotine vape exposure.ObjectiveTo investigate whether exposure to secondhand nicotine vape exposure is associated with adverse respiratory health symptoms among young adults.MethodWe investigated the effect of secondhand nicotine vape exposure on annually reported wheeze, bronchitic symptoms and shortness of breath in the prospective Southern California Children Health Study cohort. Data were collected from study participants (n=2097) with repeated annual surveys from 2014 (average age: 17.3 years) to 2019 (average age: 21.9). We used mixed effect logistic regression to evaluate the association between secondhand nicotine vape and respiratory symptoms after controlling for relevant confounders.ResultsPrevalence of secondhand nicotine vape increased from 11.7% to 15.6% during the study period in this population. Prevalence of wheeze, bronchitic symptoms and shortness of breath ranged from 12.3% to 14.9%, 19.4% to 26.0% and 16.5% to 18.1%, respectively, during the study period. Associations of secondhand nicotine vape exposure with bronchitic symptoms (OR 1.40, 95% CI 1.06 to 1.84) and shortness of breath (OR 1.53, 95% CI 1.06 to 2.21) were observed after controlling for vaping, active and passive exposure to tobacco or cannabis, and demographic characteristics (age, gender, race/ethnicity and parental education). Stronger associations were observed when analysis was restricted to participants who were neither smokers nor vapers. There were no associations with wheezing after adjustment for confounders.ConclusionSecondhand nicotine vape exposure was associated with increased risk of bronchitic symptoms and shortness of breath among young adults.
Arbiv, Omri A; Kim, JeongMin M; Yan, Marie; Romanowski, Kamila; Campbell, Jonathon R; Trajman, Anete; Asadi, Leyla; Fregonese, Federica; Winters, Nicholas; Menzies, Dick; Johnston, James C
doi: 10.1136/thoraxjnl-2020-216497pmid:
Showing 1 to 6 of 6 Articles
A subset of patients with hypersensitivity pneumonitis (HP) develop lung fibrosis that is clinically similar to idiopathic pulmonary fibrosis (IPF). To address the aetiological determinants of fibrotic HP, we investigated whether the common IPF genetic risk variants were also relevant in study subjects with fibrotic HP. Our findings indicate that common genetic variants in TERC, DSP, MUC5B and IVD were significantly associated with fibrotic HP. These findings provide support for a shared etiology and pathogenesis between fibrotic HP and IPF.
BackgroundThere is growing interest in using high-dose rifamycin (HDR) regimens in TB treatment, but the safety and efficacy of HDR regimens remain uncertain. We performed a systematic review and meta-analysis comparing HDR to standard-dose rifamycin (SDR) regimens.MethodsWe searched MEDLINE, Embase, CENTRAL, Cochrane Database of Systematic Reviews and clinicaltrials.gov for prospective studies comparing daily therapy with HDRs to SDRs. Rifamycins included rifampicin, rifapentine and rifabutin. Our primary outcome was the rate of severe adverse events (SAEs), with secondary outcomes of death, all adverse events, SAE by organ and efficacy outcomes of 2-month culture conversion and relapse. This study was prospectively registered in the International Prospective Register of Systematic Reviews (CRD42020142519).ResultsWe identified 9057 articles and included 13 studies with 6168 participants contributing 7930 person-years (PY) of follow-up (HDR: 3535 participants, 4387 PY; SDR: 2633 participants, 3543 PY). We found no significant difference in the pooled incidence rate ratio (IRR) of SAE between HDR and SDR (IRR 1.00, 95% CI 0.82 to 1.23, I2=41%). There was no significant difference when analysis was limited to SAE possibly, probably or likely medication-related (IRR 1.07, 95% CI 0.82 to 1.41, I2=0%); studies with low risk of bias (IRR 0.98, 95% CI 0.79 to 1.20, I2=44%); or studies using rifampicin (IRR 1.00, 95% CI 0. 0.75–1.32, I2=38%). No significant differences were noted in pooled outcomes of death, 2-month culture conversion and relapse.ConclusionsHDRs were not associated with a significant difference in SAEs, 2-month culture conversion or death. Further studies are required to identify specific groups who may benefit from HDR.