Association between phthalate exposure and lower lung function in an urban elderly population: A repeated-measures longitudinal study

Autor: Kyoung Nam Kim, Yoon-Hyeong Choi, Bo Eun Lee, Mee Ri Lee, Yun-Chul Hong
Rok vydání: 2018
Předmět:
Zdroj: Environment International, Vol 113, Iss, Pp 177-183 (2018)
ISSN: 0160-4120
DOI: 10.1016/j.envint.2018.02.004
Popis: Background: Lung function is a major predictor of morbidity and mortality. Only a few studies have explored the association between phthalate exposure and lung function. Objective: To evaluate the association between phthalate exposure and lung function in the elderly. Methods: A total of 3 repeated-measures surveys were conducted in 559 elderly individuals aged ≥60 years in Seoul, Korea, at 1-year intervals (2012–2015). During each survey, urinary mono-(2-ethyl-5-hydrohexyl) phthalate (MEHHP) (geometric mean, 15.68 μg/L), mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP) (11.97 μg/L), and mono-n-butyl phthalate (MnBP) (2.09 μg/L) levels were measured; moreover, lung function tests and a structured questionnaire interview were performed. We constructed linear mixed models to assess the association between urinary phthalate metabolite levels and lung function. Results: A doubling of creatinine-adjusted urinary phthalate metabolite levels was inversely associated with forced expiratory volume in 1 s (L) (β = −0.01, 95% confidence interval [CI]: −0.02, 0.004 for MEHHP; β = −0.02, 95% CI: −0.03, −0.01 for MEOHP; β = −0.01, 95% CI: −0.03, −0.003 for MnBP) and forced vital capacity (L) (β = −0.02, 95% CI: −0.03, −0.001 for MEHHP; β = −0.02, 95% CI: −0.03, −0.004 for MEOHP; β = −0.02, 95% CI: −0.03, −0.001 for MnBP). A doubling of creatinine-adjusted MnBP levels was associated with increased rates of annual decline in forced vital capacity (L/year) (β = −0.01, 95% CI: −0.02, −0.001). Conclusions: Urinary phthalate metabolite levels were associated with lower lung function and an increased rate of decline in lung function in an elderly population. Keywords: Elderly, Lung function, Phthalate, Progression analysis, Repeated-measures
Databáze: OpenAIRE