Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts; Slone Epidemiology Center, Boston University, Boston, Massachusetts.
Published: July 2014
AI Article Synopsis
Article Abstract
Objective: To investigate the extent to which fecundability is associated with active smoking, time since smoking cessation, and passive smoking.
Design: Prospective cohort study.
Setting: Denmark, 2007-2011.
Patient(s): A total of 3,773 female pregnancy planners aged 18-40 years.
Intervention(s): None.
Main Outcome Measure(s): Self-reported pregnancy. Fecundability ratios (FRs) and 95% confidence intervals (CIs) were estimated using a proportional probabilities model that adjusted for menstrual cycle at risk and potential confounders.
Result(s): Among current smokers, smoking duration of ≥10 years was associated with reduced fecundability compared with never smokers (FR, 0.85, 95% CI 0.72-1.00). Former smokers who had smoked ≥10 pack-years had reduced fecundability regardless of when they quit smoking (1-1.9 years FR, 0.83, 95% CI 0.54-1.27; ≥2 years FR, 0.73, 95% CI 0.53-1.02). Among never smokers, the FRs were 1.04 (95% CI 0.89-1.21) for passive smoking in early life and 0.92 (95% CI 0.82-1.03) for passive smoking in adulthood.
Conclusion(s): Among Danish pregnancy planners, cumulative exposure to active cigarette smoking was associated with delayed conception among current and former smokers. Time since smoking cessation and passive smoking were not appreciably associated with fecundability.
Background: The correlation between serum cotinine and fatty liver index (FLI) needs further investigation for the early identification, prevention, and treatment of metabolic dysfunction-associated steatotic liver disease (MASLD).
Methods: Data from the NHANES database spanning from March 2017 to 2018 was used to perform the population-based study to assess the relationship between serum cotinine and FLI. A variance estimation strategy was applied to address the data volatility.
Background: Secondhand smoke (SHS) can cause various health problems among different age groups worldwide. Socioeconomic factors may influence the distribution of SHS exposure among population subgroups. We aimed to estimate socioeconomic inequality in SHS exposure and identify its contributing factors among a sample of Iranian adults.
Introduction: Soils contaminated by heavy metals such as lead, cadmium, and arsenic represent a significant health risk. The Sierra Minera of Cartagena (Spain) is an area historically contaminated by mining activities. This study evaluates the exposure to heavy metals and proposes a clinical screening model for its management in primary care.
ISGlobal, Barcelona, Catalonia, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Catalonia, Spain; Centro de investigación biomédica en red en epidemiología y salud pública (CIBERESP), Madrid, Spain.
Introduction: By recent estimates, 40% of children worldwide are exposed to second-hand smoke (SHS), which has been associated with adverse health outcomes. While numerous studies have linked maternal smoking during pregnancy (MSDP) to widespread differences in child blood DNA methylation (DNAm), research specifically examining postnatal SHS exposure remains sparse. To address this gap, we conducted epigenome-wide meta-analyses to identify associations of postnatal SHS and child blood DNAm.
Department of Pulmonology, Centre Hospitalier Universitaire (CHU) Mohammed VI, Arrazi Hospital, Faculté de Médecine et de Pharmacie de Marrakech, Laboratoire de Recherche Morpho Sciences, Université Cadi Ayyad (FMPM, Labo LRMS, UCA), Marrakech, MAR.
Autoimmune pulmonary alveolar proteinosis (PAP) is a rare lung condition characterized by the accumulation of surfactant proteins within the alveoli, leading to respiratory distress. We describe a 49-year-old female homemaker with a history of passive smoking and exposure to wood smoke and pigeon droppings. She presented with a dry cough and progressive dyspnea, experiencing significant deterioration in her condition over one year.
