Risk Factors of Myelodysplastic Syndromes (MDS): A Case-Control Study.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 71-71 ◽  
Author(s):  
Sara S. Strom ◽  
Yun Gu ◽  
Stephen K. Gruschkus ◽  
Elihu H. Estey
Keyword(s):  
Risk Factors ◽  
Case Control Study ◽  
Multivariate Logistic Regression Analysis ◽  
Case Control ◽  
Multivariate Logistic Regression ◽  
Agricultural Chemicals ◽  
Chemical Exposures ◽  
History Of ◽  
Hematopoietic Cancer ◽  
Control Study

Abstract Little is known about the etiology of MDS. A hospital-based case control study was conducted to investigate the association between lifestyle characteristics and MDS risk. Cases included 354 newly diagnosed adult de novo MDS cases registered at M. D. Anderson Cancer Center (MDACC) between 1996 and 2003. Four hundred and fifty two age-, sex- and race-matched healthy controls were recruited among visitors to MDACC who accompanied patients to different clinics excluding the Leukemia clinic. A validated questionnaire was used to collect demographic and epidemiological information including lifetime history of smoking, alcohol drinking and occupational history. Multivariate logistic regression analysis adjusting for all variables simultaneously was used. The distribution by FAB type was 102 (29%) RA/RARS, 43 (12%) CMML and 209 (59%) RAEB/RAEB-T. The mean age of patients was 64 years (range: 24 to 89), the male to female ratio was 2.72, and 94% of cases were whites. Abnormal cytogenetics was found in 49% of the patients. Multivariate logistic regression analysis was performed among all MDS cases and among each FAB type. For all MDS combined, having a first degree relative diagnosed with a hematopoietic cancer (Odds ratio (OR)=1.92, 95% CI: 1.11–3.33), having ever smoked (OR=1.65, 95% CI: 1.19–2.29), having been exposed to agricultural chemicals (OR=4.57, 95% CI: 1.78–11.7) and solvents (OR=2.08, 95% CI: 1.22–3.54) were associated with MDS risk. Wine drinkers had a reduced risk of MDS as compared to those who never drank alcohol (OR=0.54, 95%: 0.37–0.79). For the RA/RARS type, smoking (OR=2.16, 95% CI: 1.3–3.6) and having been exposed to agricultural chemicals (OR=4.64, 95% CI: 1.27–16.9) were the only two risk factors identified. Wine drinkers were at reduced risk (OR=0.51, 95% CI: 0.29–0.91). For the RAEB/RAEBT type, a positive family history of hematopoietic cancer (OR=2.16, 95% CI: 1.17–3.98), smoking (OR=1.55, 95% CI: 1.05–2.30) and exposure to agricultural chemicals (OR=4.12, 95% CI: 1.51–11.3) or solvents (OR=2.83, 95% CI: 1.59–5.05) were independent risk factors. Also drinking wine seemed to reduce the risk by almost 50% (OR=0.51, 95% CI: 0.32–0.81). We also found a joint effect between smoking and chemical exposures with the largest OR found among smokers who were also exposed to solvents or agricultural chemicals as compared to never smokers without chemical exposures (OR=3.22, 95% CI: 2.11–4.92, Trend test: p<0.0001). Results from this large study suggest that several factors play a role in predisposing to MDS with possible joint effects. Risk profiles seem to differ by FAB type. Further population-based studies are needed to confirm these findings. Supported by NCI grants CA91340 and CA 100632.

scholarly journals Risk factors for hidradenitis suppurativa: a pilot study

2012 ◽  
Vol 87 (6) ◽  
pp. 936-938 ◽  
Author(s):  
Juliano Vilaverde Schmitt ◽  
Giovana Bombonatto ◽  
Manoela Martin ◽  
Hélio Amante Miot
Keyword(s):  
Risk Factors ◽  
Body Mass Index ◽  
Hidradenitis Suppurativa ◽  
Case Control Study ◽  
Multivariate Logistic Regression Analysis ◽  
Case Control ◽  
Hormonal Contraceptives ◽  
Multivariate Logistic Regression ◽  
Factors Associated ◽  
Control Study

The hidradenitis suppurativa is a chronic debilitating inflammatory disease whose etiology is not fully understood. We conducted a pilot case-control study matched by sex and age with other dermatological patients to analyze possible risk factors associated with this disease. We included 15 cases and 45 controls, 67% were women. Bivariate and multivariate logistic regression analysis identified significant association with smoking, higher body mass index and family history. The use of hormonal contraceptives was less frequent in women with hidradenitis.

Positive association between Helicobacter pylori infection and pancreatic cancer: A case-control study.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e16243-e16243
Author(s):  
Steve Otieno ◽  
Amit L Jain ◽  
Omar Mohammed ◽  
Jay R Patel ◽  
John Collyer ◽  
...  
Keyword(s):  
Risk Factors ◽  
Pancreatic Cancer ◽  
Helicobacter Pylori ◽  
Pancreatic Adenocarcinoma ◽  
Case Control Study ◽  
Positive Association ◽  
Case Control ◽  
Multivariate Logistic Regression ◽  
History Of ◽  
Control Study

e16243 Background: Pancreatic adenocarcinoma is a malignancy with a very poor prognosis. The 5-year overall survival is about 9%. Helicobacter pylori ( H. pylori) is a known risk factor for gastric adenocarcinoma and gastric mucosa-associated lymphoid tissue (MALT) lymphoma. Whether H.pylori is a risk factor for pancreatic adenocarcinoma is still unclear. Previous observational retrospective studies trying to see if there is an association between H.pylori and pancreatic adenocarcinoma have used serology as a marker for H.pylori infection, but these have yielded mixed results. We seek to probe the association of H.pylori infection and pancreatic adenocarcinoma in a case-control study using histology for H.pylori bacteria from esophagogastroduodenoscopy (EGD) biopsies. Methods: A database for patients diagnosed with pancreatic adenocarcinoma at the Veterans Affairs Medical Center in Memphis, TN, from 1988 to 2018 was analyzed to obtain suitable cases. Pathology was reviewed to confirm the diagnosis and then the charts were reviewed to determine if the patient had undergone an EGD and if biopsies done obtained were tested for H.pylori. H.pylori positivity was determined using Steiner staining of the biopsy samples. 402 charts were reviewed and 51 cases meeting the above criteria were obtained. Controls were obtained by reviewing charts for all EGDs that were tested for H.pylori. Care was taken to make sure patients did not have any history of pancreatobiliary malignancy. 130 matched controls fit the screening criteria. Univariate and multivariate logistic regression analysis was done to analyze the risk factors. Results: Significantly more subjects in the case group (53%) were found to have H.Pylori infection compared to the control group (18%). Risk factors associated with pancreatic cancer in the literature, including age, race, smoking history, obesity, alcohol consumption, chronic pancreatitis, and diabetes, were analyzed using multivariate logistic regression. The results revealed that pancreatic cancer was significantly associated with a positive family history of pancreatic cancer (OR = 11.2, 95%CI 2.8-44.4, p = 0.001) and H.Pylori infection (OR = 5.5), 95%CI 2.4-12.7,p < 0.001). Conclusions: A positive association was found between H.pylori infection and pancreatic adenocarcinoma.

scholarly journals Association between infection with Campylobacter species, poor oral health and environmental risk factors on esophageal cancer: a hospital-based case–control study in Thailand

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Arisara Poosari ◽  
Thitima Nutravong ◽  
Prakasit Sa-ngiamwibool ◽  
Wises Namwat ◽  
Supaporn Chatrchaiwiwatana ◽  
...  
Keyword(s):  
Risk Factors ◽  
Esophageal Cancer ◽  
Oral Hygiene ◽  
Case Control Study ◽  
Significant Risk ◽  
Case Control ◽  
Poor Oral Hygiene ◽  
History Of ◽  
Control Study ◽  
History Of Cancer

Abstract Background Previous studies have shown the association between Campylobacter species infection and that environmental factors, poor oral hygiene in particular, are linked to an increased risk of esophageal cancer (EC). However, no study has reported on these factors in Thailand. Thus, this study’s objective was to evaluate the impact of the relationship between Campylobacter infection and environmental factors on EC incidence in the population of Thailand. Methods Data from a case–control study were collected from 105 newly diagnosed EC cases and 105 controls recruited from 2007 to 2017. Infection with Campylobacter spp. was detected in the formalin-fixed paraffin-embedded (FFPE) tissue of EC taken from gastroesophageal biopsy specimens obtained from the participants, and evaluated using TaqMan® real-time PCR. Multivariable logistic regression was performed to calculate the odds ratios (ORs) and perform data analysis. Results Smoking, alcohol use, a family history of cancer, history of gastroesophageal reflux disease, poor oral hygiene and Campylobacter spp. infection were shown to be significant risk factors for EC (p  <  0.05). The combination of poor oral hygiene and infection with Campylobacter spp. constituted significant risk for EC (p  <  0.001). In addition, the risk of EC in subjects co-infected with C. rectus and C. concisus that practiced poor oral hygiene was even higher and was significant (ORadj  =  4.7; 95% CI 2.41–9.98; p  =  0.003). Conclusions In Thailand, the major risk factors for EC are smoking status, alcohol drinking, family history of cancer, GERD, poor oral hygiene and Campylobacter spp. infection. This study found Campylobacter spp. prevalence to be associated with EC and appears to be enhanced by poor oral hygiene, suggesting that a combination of poor oral hygiene and Campylobacter species infection may together act as an important etiological risk factor for EC.

scholarly journals Evaluation of Cardiovascular Risk of Selective and Nonselective Cyclooxygenase Inhibitors (COX-Is) in Arthritic Patients: A Comparative Matched Case Control Study

2014 ◽  
Vol 6 (2) ◽  
pp. 329-338
Author(s):  
N. Quraishi ◽  
U. Bhosale ◽  
R. Yegnanarayan ◽  
D. Devasthale
Keyword(s):  
Risk Factors ◽  
Lipid Profile ◽  
Case Control Study ◽  
Case Control ◽  
Cyclooxygenase Inhibitors ◽  
History Of ◽  
Matched Case ◽  
Cox 2 ◽  
Matched Case Control Study ◽  
Control Study

This study was conducted to assess and compare the cardiovascular risk and to explore the demography of CV risk of nonselective cyclooxygenase inhibitors (COX-Is) and selective COX-2-Is in arthritic patients. In this comparative matched case control study adult arthritic patients of either sex taking COX-Is for >1 yr; were included. Arthritic age and sex matched individuals with no history of COX-Is treatment were the controls. Patients those with history of any other disease (e.g. diabetes, hypertension, stroke, IHD etc.) were excluded. Patients were grouped into Control, nonselective COX-I and selective COX-2-I groups. The CV risk factors like blood pressure, blood sugar level(BSL), lipid profile, BMI(body mass index) etc. were assessed and compared; demography of CV risk factors i.e. age, sex, smoking, alcohol, heredity was also studied. Qualitative data was analyzed using Chi-square and quantitative data was analyzed by student’s‘t’-test. Study clearly revealed that all NSAIDs exhibit significant CV risk when taken over a period of time as in arthritis. However selective COX 2-Is found to exhibit more CV risk in this regard. Odds ratio (OR) for CV risk=10.3(95% CI: 1.45, 3.31) and OR for CV risk=5.2(95%CI: 1.05, 2.57) for nonselective COX-Is. BMI, BSL and lipid profile; the potential CV risk factors, showed significant impairment in selective COX 2-Is group; P<0.05, P<0.05 and P<0.01 (HDL), P<0.001 (cholesterol), respectively compared to controls and P<0.05 compared to nonselective COX-Is. This study portrays the potential CV risk of selective COX 2-Is and confirms and re-evaluate the results of earlier studies in this regard.  Keywords: Anti-arthritic agents; BMI; COX-Is; CV risk; Lipid profile.  © 2014 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.  doi: http://dx.doi.org/10.3329/jsr.v6i2.17039 J. Sci. Res. 6 (2), 328-338 (2014)  

scholarly journals Risk factors associated with early childhood caries – a case control study

2016 ◽  
Vol 31 (2) ◽  
pp. 83
Author(s):  
Marina De Deus Moura Lima ◽  
Zacarias Soares Brito-Neto ◽  
Heylane Oliveira Amaral ◽  
Cacilda Castelo Branco Lima ◽  
Marcoeli Silva de Moura ◽  
...  
Keyword(s):  
Risk Factors ◽  
Early Childhood ◽  
Early Childhood Caries ◽  
Case Control Study ◽  
Case Control ◽  
Control Group ◽  
Factors Associated ◽  
History Of ◽  
Control Study ◽  
Childhood Caries

Objective: The aim of this study was to determine the risk factors associated with early childhood caries (ECC).Methods: It was an observational retrospective case-control study. The case group consisted of all patients diagnosed with ECC in the records of an active program of maternal and child care. The control group was composed of an equal number of children, matched for gender and age, who attended the program and did not have ECC. The process of data collection consisted of completing a pre-established schedule to analyse variables related to the mother/caregiver and child.Statisticalanalysis was performed using the chi-squared and odds ratio (OR), with alpha (α) = 0.05.Results: History of caries in the mother (OR=2.61; CI 95%=1.45-4.67) and father (OR=1.72; CI 95%=1.02-2.89) were key determinants in the child being diagnosed with ECC.Conclusions: The risk factors associated with ECC were the following: no oral hygiene acceptance, nocturnal feeding duration of more than 16 months, a daily intake of sugar greater than 4 times a day, a Baume type II maxillary arch, fewer than 3 consultations with the program, and a history of decay in the parents.

Carbapenem-ResistantKlebsiella pneumoniaein Post-Acute-Care Facilities in Israel

2011 ◽  
Vol 32 (9) ◽  
pp. 845-853 ◽  
Author(s):  
Debby Ben-David ◽  
Samira Masarwa ◽  
Shiri Navon-Venezia ◽  
Hagit Mishali ◽  
Ilan Fridental ◽  
...  
Keyword(s):  
Risk Factors ◽  
Acute Care ◽  
Case Control Study ◽  
Case Control ◽  
Antibiotic Exposure ◽  
Care Facilities ◽  
History Of ◽  
Independent Risk Factors ◽  
Acute Care Facilities ◽  
Control Study

Objective.To assess the prevalence of and risk factors for carbapenem-resistantKlebsiella pneumoniae(CRKP) carriage among patients in post-acute-care facilities (PACFs) in Israel.Design, Setting, and Patients.A cross-sectional prevalence survey was conducted in 12 PACFs. Rectal swab samples were obtained from 1,144 patients in 33 wards. Risk factors for CRKP carriage were assessed among the cohort. Next, a nested, matched case-control study was conducted to define individual risk factors for colonization. Finally, the cohort of patients with a history of CRKP carriage was characterized to determine risk factors for continuous carriage.Results.The prevalence of rectal carriage of CRKP among 1,004 patients without a history of CRKP carriage was 12.0%. Independent risk factors for CRKP carriage were prolonged length of stay (odds ratio [OR], 1.001;P< .001), sharing a room with a known carrier (OR, 3.09;P= .02), and increased prevalence of known carriers on the ward (OR, 1.02;P= .013). A policy of screening for carriage on admission was protective (OR, 0.41;P= .03). Risk factors identified in the nested case-control study were antibiotic exposure during the prior 3 months (OR, 1.66;P= .03) and colonization with other resistant pathogens (OR, 1.64;P= .03). Among 140 patients with a history of CRKP carriage, 47% were colonized. Independent risk factors for continued CRKP carriage were antibiotic exposure during the prior 3 months (OR, 3.05;P= .04), receipt of amoxicillin-clavulanate (OR, 4.18;P= .007), and screening within 90 days of the first culture growing CRKP (OR, 2.9;P= .012).Conclusions.We found a large reservoir of CRKP in PACFs. Infection-control polices and antibiotic exposure were associated with patient colonization.

scholarly journals Identification of risk factors for human immunodeficiency virus-1 infection in Khyber Pakhtunkhwa population: A case control study

2019 ◽  
Vol 35 (5) ◽  
Author(s):  
Jamila Haider ◽  
Ghosia Lutfullah ◽  
Irshad Ur Rehman ◽  
Irfan Khattak
Keyword(s):  
Risk Factors ◽  
Human Immunodeficiency Virus ◽  
Case Control Study ◽  
Case Control ◽  
Male Gender ◽  
Khyber Pakhtunkhwa ◽  
Immunodeficiency Virus ◽  
History Of ◽  
Control Study ◽  
Human Immunodeficiency Virus 1

Objectives: The present study aims to identify the risk factors for Human Immunodeficiency Virus-1(HIV-1) infection in Khyber Pakhtunkhwa (KP) population by comparing HIV-antibody positive cases with HIV-antibody-negative controls. Methods: The study was designed at the Family Care Centre (FCC), Hayatabad Medical Centre (HMC) Peshawar from February 2015 to December 2016. A total of 280 individuals were selected randomly for the study as cases and control. Data was collected on a structured questionnaire with informed oral consent. The collected data was analysed statistically using SPSS version 20. Results: Out of 280 individuals, 56% were males, 44% were females, and 53.21% belonged to the urban areas. The literacy rate was 48.6%, and 75.4% were married. The statistical analysis of risk factors revealed the following factors as of significance value (p < 0.05). Family history of HIV (OR = 9.46), spouse status of HIV (OR=22.22), injection drug users (IDUs), migrants (OR=2.234), use of therapeutic injections (OR= 2.791), employment (OR=2.545), male gender (OR=2.35), tattooing (OR=7.667) and history of blood transfusion (OR= 2.69). Conclusion: The present study revealed spouse status of HIV, tattooing, migrants, IDUs, use of therapeutic injections, history of blood transfusion, male gender and employment as significant risk factors for HIV infection in the population of KP. doi: https://doi.org/10.12669/pjms.35.5.258 How to cite this:Haider J, Lutfullah G, Irshad ur Rehman, Khattak I. Identification of risk factors for human immunodeficiency virus-1 infection in Khyber Pakhtunkhwa population: A case control study. Pak J Med Sci. 2019;35(5):---------. doi: https://doi.org/10.12669/pjms.35.5.258 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

scholarly journals Risk factors associated with peripheral neuropathy among diabetic individuals: a case control study

2021 ◽  
Vol 8 (2) ◽  
pp. 768
Author(s):  
Christa Kingston ◽  
Aravindan J. ◽  
Srikumar Walsalam
Keyword(s):  
Quality Of Life ◽  
Risk Factors ◽  
Diabetic Neuropathy ◽  
Case Control Study ◽  
Case Control ◽  
Diabetic Patients ◽  
Factors Associated ◽  
History Of ◽  
Control Study

Background: Diabetic neuropathy is one among the most common complication in diabetes mellitus. Diabetic peripheral neuropathy hinders the quality of life causing morbidity and mortality. The purpose of this study was to find the risk factors associated with diabetic neuropathy.Methods: This case control study involved 100 diabetic patients attending the Dohnavur fellowship hospital, Dohnavur from October 2019 to March 2020. Sociodemographic profile and diabetic characteristics of the study group were obtained and analysed. Diagnosis of Diabetic Neuropathy was done by using the diagnostic method proposed by American Diabetic Association.Results: Of the total study population with mean age 59.43 years, 63% had family history of diabetes. Almost 70% had poor diabetic control. Statistically significant relationships were found between neuropathy and duration of diabetes, glycaemic control, history of hypertension, monofilament test and pinprick sensation.Conclusions: In this study, glycemic control, dyslipidemia and hypertension were modifiable risk factors for diabetic neuropathy. Early interventional programs to sensitize diabetics on these factors could improve the quality of life of Diabetic patients. 

Risk factors for bleeding from gastrointestinal angiodysplasia: a case-control study in patients with bleeding and non-bleeding angiodysplasia

2020 ◽  
Vol 58 (03) ◽  
pp. 234-240
Author(s):  
Bruno Neu ◽  
Georg Moessmer ◽  
Monther Bajbouj ◽  
Valentin Becker ◽  
Petra Barthel ◽  
...  
Keyword(s):  
Risk Factors ◽  
Gastrointestinal Bleeding ◽  
Case Control Study ◽  
Clinical Laboratory ◽  
Vascular Malformations ◽  
Case Control ◽  
Common Source ◽  
Primary Hemostasis ◽  
History Of ◽  
Control Study

Abstract Objectives Angiodysplasia (AD) is a common source of gastrointestinal bleeding. Yet, little is known about factors forwarding bleeding in these vascular malformations. The presented study aims to determine risk factors for bleeding that occurs only in patients with symptomatic, but not with asymptomatic, AD. Methods Case-control study in patients with AD and either a positive or a negative history of gastrointestinal bleeding in Munich, Germany. Groups were compared by clinical, laboratory, and endoscopic features. Results 80 patients with (58, f 31, med. age 72) or without bleeding AD (22, f 12, med. age 61) were included. Bleeding from AD was significantly associated with the total number of AD (OR 1.4 (95 % CI 1.1–1.7) p = 0.01) and closure time in PFA/collagen-epinephrine test (OR 1.0 (95 % CI 1.0–1.0) p < 0.01). The total number of AD correlated significantly with age (r = 0.36; p = 0.01). AD were mainly detected in the upper small intestine (> 30 %). Although patients with aortic stenosis suffered not significantly more frequently from bleeding from AD, they demonstrated a loss of high molecular multimers of VWF. Conclusions The amount of AD is clearly correlated to the age of the patient. A higher number of ADs and inhibition of primary hemostasis increase the risk of bleeding.

scholarly journals Risk factors for hepatitis C virus infection. A case-control study of blood donors in the Trent Region (UK)

1994 ◽  
Vol 112 (3) ◽  
pp. 595-601 ◽  
Author(s):  
K. R. Neal ◽  
D. A. Jones ◽  
D. Killey ◽  
V. James
Keyword(s):  
Risk Factors ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Blood Transfusion ◽  
Blood Donors ◽  
Case Control Study ◽  
Case Control ◽  
Hcv Infection ◽  
History Of ◽  
Control Study

SUMMARYThe introduction of screening for hepatitis C virus (HCV) by the National Blood Transfusion Service identified donors who had acquired HCV infection. We undertook a case-control study amongst blood donors in the Trent Region to determine risks for HCV infection. A total of 74 blood donors confirmed positive for hepatitis C infection and 150 age, sex and donor venue matched controls were included in the study. Fifty-three percent of hepatitis C infected blood donors reported previous use of injected drugs compared to no controls; relative risk (RR) not estimatable (lower limit 95% CI = 20). Other risk factors were a history of: receipt of a blood transfusion or blood products RR = 3·6 (95% CI 1·5–8·3), having been a ‘health care worker’ RR = 2·8 (95% CI 1·1–7·6), tattooing RR = 3·3 (95% CI 1·2–8·7), and an association with having been born abroad RR = 3·2 (95% CI 1·1–9·5). No risk was shown for a history of multiple sexual partners, ear piercing or acupuncture. Injecting drug use explains more than 50% of hepatitis C infections in blood donors, a group who are less likely to have injected drugs than the general population.

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