Hereditary origins, collective smoking and you may lung form one of female Among 1735 women, each 10 pack-years of smoking was associated with a ?0.85% (95% CI ?1.13% to ?0.57%) mean decrement in FEV1 to FVC ratio, a ?48.6 ml (95% CI ?61.6 to ?35.7) mean decrement in FEV1 and a 1.36 (95% CI 1.20 […]