Search results for "Case-control study"
showing 3 items of 563 documents
A case-control study on risk factors for nuclear, cortical and posterior subcapsular cataract: The Casteldaccia Eye Study
2005
Purpose: To investigate risk factors for nuclear, cortical and posterior subcapsular age-related cataract. Methods: A case-control study was carried out on subjects aged 40 years and older, living in Casteldaccia, Sicily. Twenty-seven potential risk factors were investigated. Nuclear, cortical and posterior subcapsular opacities of the lens were classified according to the Lens Opacities Classification System II. Subjects with advanced lens opacities represented the cases, while an identical number of subjects without or with early cataract, matched for sex and age, were recruited as controls from within the same population. Results: Univariate analysis showed that myopia and iris atrophy w…
Traffic proximity and lung function. A case-control study in asthmatic children
2015
Introduction: Respiratory conditions are strongly dependent on air pollution. Urban areas are typically characterized by risky environmental conditions. Objectives: To analyze the effect of traffic proximity on asthma and to explore the relationship between level of traffic proximity and lung function in asthmatic and non- asthmatic children. Methods: A case-control study on children visited for suspected respiratory diseases at IBIM from 2011 to 2014 was performed. All the children have been geocoded according to their residence address. Exposure to traffic air pollution was assessed through determination of number and types of streets in proximity of the place of residence. The relationsh…
Musculoskeletal disorders and disability among forest industry workers in lower and higher sickness absence groups: a case-control study
2019
Background: Musculoskeletal wellbeing and disorders and explanatory factors were investigated among forest industry employees. Methods: A new positive approach to maintenance of working ability focuses on being present at work. 140 individuals with low sickness absence (≤1.5% in hours during the past 6.5 years) and 140 controls with higher sickness absence (>1.5%), randomly selected from the source population (n = 636) in workplace clusters (n = 5), were studied. Questionnaire data on functioning, musculoskeletal disorders (MSD) and disability, work ability and wellbeing were collected (response rate 65%) during December 2012–January 2013. 183 employees (mean age 48.5; females 32%) particip…