Denis Vinnikov1, Paul D Blanc, Nurlan Brimkulov, Rupert Redding-Jones. 1. From the Kumtor Gold Company (Drs Vinnikov and Redding-Jones), Bishkek, Kyrgyzstan; University of California (Dr Blanc), San Francisco, Calif; and Kyrgyz State Medical Academy (Dr Brimkulov), Bishkek, Kyrgyzstan.
Abstract
OBJECTIVE: To assess the annual lung function decline associated with the reduction of secondhand smoke exposure in a high-altitude industrial workforce. METHODS: We performed pulmonary function tests annually among 109 high-altitude gold-mine workers over 5 years of follow-up. The first 3 years included greater likelihood of exposure to secondhand smoke exposure before the initiation of extensive smoking restrictions that came into force in the last 2 years of observation. RESULTS: In repeated measures modeling, taking into account the time elapsed in relation to the smoking ban, there was a 115 ± 9 (standard error) mL per annum decline in lung function before the ban, but a 178 ± 20 (standard error) mL per annum increase afterward (P < 0.001, both slopes). CONCLUSION: Institution of a workplace smoking ban at high altitude may be beneficial in terms of lung function decline.
OBJECTIVE: To assess the annual lung function decline associated with the reduction of secondhand smoke exposure in a high-altitude industrial workforce. METHODS: We performed pulmonary function tests annually among 109 high-altitude gold-mine workers over 5 years of follow-up. The first 3 years included greater likelihood of exposure to secondhand smoke exposure before the initiation of extensive smoking restrictions that came into force in the last 2 years of observation. RESULTS: In repeated measures modeling, taking into account the time elapsed in relation to the smoking ban, there was a 115 ± 9 (standard error) mL per annum decline in lung function before the ban, but a 178 ± 20 (standard error) mL per annum increase afterward (P < 0.001, both slopes). CONCLUSION: Institution of a workplace smoking ban at high altitude may be beneficial in terms of lung function decline.
Authors: Yolanda Rando-Matos; Mariona Pons-Vigués; María José López; Rodrigo Córdoba; José Luis Ballve-Moreno; Elisa Puigdomènech-Puig; Vega Estíbaliz Benito-López; Olga Lucía Arias-Agudelo; Mercè López-Grau; Anna Guardia-Riera; José Manuel Trujillo; Carlos Martin-Cantera Journal: PLoS One Date: 2017-07-31 Impact factor: 3.240