348. Comparison of Highest Short-Term Exposure Intensity and Cumulative Exposure Metrics in a Case-Control Study of Silicosis

1999 ◽  
Author(s):  
G. Liu ◽  
P. Succop ◽  
C. Rice
Keyword(s):  
Case Control Study ◽  
Case Control ◽  
Cumulative Exposure ◽  
Short Term ◽  
Short Term Exposure ◽  
Exposure Metrics ◽  
Control Study

Short‐Term Exposure to Air Pollution and Epiglottitis: A Nested Case–Control Study

2021 ◽  
Author(s):  
So Young Kim ◽  
Chanyang Min ◽  
Dae Myoung Yoo ◽  
Bumjung Park ◽  
Hyo Geun Choi
Keyword(s):  
Air Pollution ◽  
Case Control Study ◽  
Case Control ◽  
Short Term ◽  
Short Term Exposure ◽  
Nested Case Control ◽  
Control Study

Prevalence, Risk Factors, and Short-Term Outcomes of Full-Term Low Birth Weight Infants Born at a Tertiary Academic Center: A Prospective Case–Control Study

2021 ◽  
Author(s):  
Heidi K. Al-Wassia ◽  
Shahd K. Baarimah ◽  
Asmaa H. Mohammedsaleh ◽  
Manal O. Alsulami ◽  
Ragad S. Abbas ◽  
...  
Keyword(s):  
Risk Factors ◽  
Birth Weight ◽  
Low Birth Weight ◽  
Case Control Study ◽  
Case Control ◽  
Adverse Outcomes ◽  
Chromosomal Anomalies ◽  
Short Term ◽  
Term Infants ◽  
Control Study

Objective Low birth weight (LBW) infants (<2,500 g) continued to be a global health problem because of the associated short- and long-term adverse outcomes. The study aimed to determine the prevalence, risk factors, and short-term outcomes of term LBW infants Study Design A prospective and case–control study. All infants born consecutively from September 1, 2018 to August 31, 2019 were included. Cases, term LBW infants, were 1:1 matched to controls, appropriate for gestational age (AGA) term infants. Major congenital or chromosomal anomalies and multiple pregnancies were excluded. Results The prevalence of term LBW in the studied period was 4.8%. Mothers of term LBW infants had significantly lower body mass index (p = 0.05), gained less weight (p = 0.01), had a history of previous LBW (p = 0.01), and lower monthly income (p = 0.04) compared with mothers of term AGA infants even after adjustment for confounders. A nonsignificant higher number of term LBW infants needed NICU admission, while their need for phototherapy was deemed significant. Conclusion We identified nutritional and socioeconomic maternal factors that are significantly associated with LBW infants and should be targeted during antenatal visits to improve neonatal outcomes. Key Points

scholarly journals Hemophagocytic Lymphohistiocytosis: Prevalence, Risk Factors, Outcome, and Outcome-related Factors in Adult Idiopathic Inflammatory Myopathies

2019 ◽  
Vol 47 (10) ◽  
pp. 1532-1540 ◽  
Author(s):  
Junyu Liang ◽  
Danyi Xu ◽  
Chuanyin Sun ◽  
Weiqian Chen ◽  
Heng Cao ◽  
...  
Keyword(s):  
Risk Factors ◽  
Disease Activity ◽  
Case Control Study ◽  
Case Control ◽  
Short Term ◽  
Related Factors ◽  
Term Outcome ◽  
Factors Influencing ◽  
Short Term Outcome ◽  
Control Study

Objective.To clarify the prevalence, risk factors, outcome, and outcome-related factors of hemophagocytic lymphohistiocytosis (HLH) in patients with dermatomyositis (DM), polymyositis (PM), or clinically amyopathic dermatomyositis (CADM).Methods.Data of patients with DM, PM, or CADM who were admitted to the First Affiliated Hospital of Zhejiang University from February 2011 to February 2019 were retrospectively collected. Patients diagnosed with HLH constituted the case group. A 1:4 case-control study was performed to identify risk factors for HLH in patients with DM, PM, or CADM through comparison, univariate, and multivariate logistic regression analysis. Intragroup comparison was made among patients with HLH to identify factors influencing unfavorable short-term outcome.Results.HLH was a rare (4.2%) but fatal (77.8%) complication in patients with DM, PM, or CADM. The retrospective case-control study revealed that higher on-admission disease activity (p = 0.008), acute exacerbation of interstitial lung disease (AE-ILD, p = 0.002), and infection (p = 0.002) were risk factors for complication of HLH in patients with DM, PM, or CADM. The following intragroup comparison showed that higher on-admission disease activity (p = 0.035) and diagnosis of CADM (p = 0.039) might influence the short-term outcome of patients with HLH. However, no risk factor was identified after false discovery rate correction.Conclusion.In this study, secondary HLH was a fatal complication, with higher on-admission disease activity, AE-ILD, and infection working as risk factors. The underlying role of infection and autoimmune abnormality in HLH in connective tissue disease was subsequently noted. Clinical factors influencing the short-term outcome of patients with secondary HLH require further study.

scholarly journals Cardiac Complications Associated with Short-Term Mortality in Schizophrenia Patients Hospitalized for Pneumonia: A Nationwide Case-Control Study

PLoS ONE ◽  
2013 ◽  
Vol 8 (7) ◽  
pp. e70142 ◽  
Author(s):  
Ya-Tang Liao ◽  
Shu-Yu Yang ◽  
Hsing-Cheng Liu ◽  
Wei J. Chen ◽  
Chiao-Chicy Chen ◽  
...  
Keyword(s):  
Case Control Study ◽  
Case Control ◽  
Cardiac Complications ◽  
Short Term ◽  
Short Term Mortality ◽  
Control Study

Robotic vs Laparoscopic Resection of Rectal Cancer: Short-Term Outcomes of a Case-Control Study

2011 ◽  
Vol 54 (2) ◽  
pp. 151-156 ◽  
Author(s):  
Jung Myun Kwak ◽  
Seon Hahn Kim ◽  
Jin Kim ◽  
Dong Nyoung Son ◽  
Se Jin Baek ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Case Control Study ◽  
Laparoscopic Resection ◽  
Case Control ◽  
Short Term ◽  
Control Study

scholarly journals Bladder cancer and occupational exposure to metalworking fluid mist: a counter-matched case–control study in French steel-producing factories

2018 ◽  
Vol 75 (5) ◽  
pp. 328-336 ◽  
Author(s):  
Régis Colin ◽  
Michel Grzebyk ◽  
Pascal Wild ◽  
Guy Hédelin ◽  
Ève Bourgkard
Keyword(s):  
Bladder Cancer ◽  
Occupational Exposure ◽  
Case Control Study ◽  
Occupational Exposures ◽  
Case Control ◽  
Metalworking Fluids ◽  
Cumulative Exposure ◽  
Cancer Case ◽  
Increased Risk ◽  
Control Study

ObjectivesTo assess the relationship between occupational exposure to metalworking fluids (MWFs) in the steel-producing industry and bladder cancer incidence.MethodsA nested case–control study on bladder cancer was set up in a cohort of workers from six French steel-producing factories. Three controls were randomly selected for each incident bladder cancer case diagnosed from 2006 to 2012. Controls were matched to cases on age at diagnosis and counter-matched on a surrogate measure of exposure to MWFs derived from a job-exposure matrix. Cases (n=84) and controls (n=251) were face-to-face interviewed. Experts assessed occupational exposure to MWFs (straight, soluble and synthetic) using questionnaires and reports from factory visits. Occupational exposures were based on three metrics: duration, frequency-weighted duration and cumulative exposure index. Conditional multiple logistic regressions were used to determine ORs and 95% CIs, taking non-occupational and occupational exposure into account.ResultsIn the 25 years before diagnosis, ORs increased significantly with duration of exposure to straight MWFs (OR=1.13 (1.02–1.25)) and increased with frequency-weighted duration of exposure to straight MWFs (OR=1.44 (0.97–2.14)). These results remained valid after adjusting for duration of smoking, average number of cigarettes smoked per day, time since smoking cessation and exposure to polycyclic aromatic hydrocarbons (PAHs). ORs also increased with soluble MWFs but not significantly. No significant association was found with older exposures to MWFs or with exposure to synthetic MWFs.ConclusionThe increased risk of bladder cancer observed among workers exposed to straight MWFs and to a lesser extent to soluble MWFs may be explained by the presence of carcinogens (such as PAH) in mineral oils component of straight and soluble oils. Prevention therefore remains necessary in sectors using MWFs.

Case–control study of brain and other central nervous system cancer among workers at semiconductor and storage device manufacturing facilities

2020 ◽  
Vol 77 (4) ◽  
pp. 238-248 ◽  
Author(s):  
Ema G Rodrigues ◽  
Robert F Herrick ◽  
James Stewart ◽  
Helena Palacios ◽  
Francine Laden ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Case Control Study ◽  
Case Control ◽  
Cumulative Exposure ◽  
Storage Device ◽  
Central Nervous System Cancer ◽  
Cns Cancer ◽  
Control Study ◽  
Nervous System Cancer

ObjectiveThis study evaluated the relationship between brain and other central nervous system cancer (‘CNS cancer’) and exposures at two semiconductor and electronic module manufacturing facilities and at a storage device manufacturing facility.MethodsThe case–control study, nested in a cohort of 126 836 employees, compared 120 CNS cancer cases and 1028 matched controls with respect to employment in 10 process groups and estimated cumulative exposure to 31 known or possible carcinogens.ResultsCNS cancer was associated with module manufacturing operations at two facilities. Module manufacturing is a process that begins with production of ceramic substrates followed by attachment of completed semiconductor chips and metal-containing circuitry resulting in a high performing electronic device. Positive associations with the highest tertile of estimated cumulative exposure were found for several chemicals, including 2-butoxyethanol, cyclohexanone, ortho-dichlorobenzene, cadmium, molybdenum, trichloroethylene and vinyl chloride.ConclusionsResults suggested positive associations between CNS cancer and specific operations and chemicals experienced in the semiconductor and electronic module manufacturing industry. However, lack of external support for these findings precludes a causal interpretation, and the observed associations may have been due to chance.

Cumulative exposure to estrogen and psychosis: a peak bone mass, case-control study in first-episode psychosis

2005 ◽  
Vol 73 (2-3) ◽  
pp. 351-355 ◽  
Author(s):  
Nadja Maric ◽  
Vera Popovic ◽  
Miroslava Jasovic-Gasic ◽  
Nada Pilipovic ◽  
Jim van Os
Keyword(s):  
Bone Mass ◽  
Peak Bone Mass ◽  
Case Control Study ◽  
First Episode Psychosis ◽  
Case Control ◽  
Cumulative Exposure ◽  
First Episode ◽  
Episode Psychosis ◽  
Mass Case ◽  
Control Study
Sign in / Sign up

Export Citation Format

Share Document