Homicide by men diagnosed with schizophrenia: national case–control study

Background Some people diagnosed with schizophrenia are more prone to committing acts of serious violence, especially in the presence of drug or alcohol misuse. The rarity of homicide has meant that no large controlled study has previously examined clinical risk factors. Aims To determine the risk factors for homicide by males diagnosed with schizophrenia. Method A national nested case–control study of all previously admitted males diagnosed with schizophrenia, convicted of homicide between 1 January 1997 and 31 December 2012. Univariate and multivariable conditional logistic regression models were fitted to identify predictors of homicide in this population. Results During the observation period 160 male patients with schizophrenia and a history of psychiatric admission were convicted of homicide, and they were matched with 542 male control patients who had not been convicted of homicide. Patients who committed homicide were more likely to have a history of violence and comorbid personality disorder or drug misuse. They were more likely to have missed their last contact with services prior to the offence and to have been non-adherent with their treatment plan. Almost all (94%) of homicides were committed by patients who had a history of alcohol or drug misuse and/or who were not in receipt of planned treatment. Conclusions In England and Wales, homicides by patients with schizophrenia without substance misuse and in receipt of planned care are exceptionally rare. To prevent serious violence, mental health services should focus on drug and alcohol misuse, treatment adherence and maintaining contact with services.

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Assessing the risk factors of preterm births in Kurdistan, Iran: a case-control study

10.21203/rs.3.rs-32989/v1 ◽

2020 ◽

Author(s):

Siros Hemmatpour ◽

Majid Mansori ◽

Ghobad Moradi ◽

Shobo Sheikhahmadi ◽

Batool Bagheri

Keyword(s):

Risk Factors ◽

Preterm Birth ◽

Case Control Study ◽

Conditional Logistic Regression ◽

Case Control ◽

Blood Type ◽

Access To Health Services ◽

Term Infants ◽

History Of ◽

Control Study

Abstract Background Preterm birth is one of the most common causes of mortality in infants. Despite advances in health care and better access to health services in many countries, preterm birth has increased over the past two decades. Methods This case control study was conducted on two groups with 100 participants including 100 preterm infants (case) and 100 term infants (control) with gender match in Kurdistan Province-Iran in 2018. The required information was collected from medical files and interviewing the mothers as to demographical information, midwifery specifications, background diseases, disease over pregnancy term, and infants’ information. Conditional logistic regression test was used to estimate the final model and compute the risk ratio. Results Multivariate regression analysis showed that the risk of preterm birth in individual with AB blood type was higher (OR=5.04; 95% CI 1.40-18.08). In addition, the risk of preterm birth was higher in the mothers with a history of stillbirth (OR=13.63; 95% CI 1.39-133.5). Preterm birth was significantly related to the history of birth diseases, history of pregnancy diseases, and using medicine for specific diseases during pregnancy. Conclusions Blood type of mother, history of still birth, history of birth disease, history of pregnancy diseases, using medicines for specific diseases, and history of preterm birth were the risk factors of preterm birth. These factors need to be taken into account before and during pregnancy. Paying more attention to these factors attenuates the rate of preterm birth and premature infants and in turn the mortality rate of infants and mothers.

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Persistent Ethanol Drinking Increases Liver Injury Induced by Trinitrotoluene Exposure: An In-plant Case-Control Study

Human & Experimental Toxicology ◽

10.1177/096032719101000607 ◽

1991 ◽

Vol 10 (6) ◽

pp. 405-409

Author(s):

Li Jie ◽

Quan-Guan Jiang ◽

Wei-Dong Zhong

Keyword(s):

Risk Factors ◽

Liver Damage ◽

Case Control Study ◽

Conditional Logistic Regression ◽

Heavy Drinking ◽

Case Control ◽

Conditional Logistic Regression Model ◽

Two Factors ◽

History Of ◽

Control Study

On the basis of a general survey conducted in a munitions plant, a case-control study was made on the various risk factors of liver damage induced by trinitrotoluene (TNT) exposure in the plant. One-hundred male cases with occupational TNT liver damage were paired with 100 male controls, one-by-one, for occupation, age and duration (years) of employment. A total of 55 possible risk factors were statistically analysed with a single factor analysis. On the basis of the single analysis, nine factors including drinking, smoking and education were further analysed with a conditional logistic regression model. A calculation was made on the odds ratio (OR) of each factor selected into the model. According to the estimated parameter of the established logistic model, the relative risk of the risk factors could be worked out. Finally, two factors, the amount of ethanol drunk on each occasion and the frequency of drinking every week were selected into the model at the level of a = 0.05. The result showed that these two factors have a dose-response relationship with their OR of occupational TNT liver damage, but there is no connection between smoking and occupational TNT liver damage and no interaction between drinking and smoking. The above results have revealed that people exposed to TNT and with a long history of heavy drinking, have a greater risk of suffering from chronic liver impairment than those that do not drink.

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Assessing the risk factors of preterm births in Kurdistan, Iran: a case-control study

10.21203/rs.2.23137/v1 ◽

2020 ◽

Author(s):

Siros Hemmatpour ◽

Majid Mansori ◽

Ghobad Moradi ◽

Shobo Sheikhahmadi ◽

Batoul Bagheri

Keyword(s):

Risk Factors ◽

Preterm Birth ◽

Case Control Study ◽

Conditional Logistic Regression ◽

Case Control ◽

Blood Type ◽

Access To Health Services ◽

Term Infants ◽

History Of ◽

Control Study

Abstract Background: Preterm birth is one of the most common causes of mortality in infants. Despite advances in health care and better access to health services in many countries, preterm birth has increased over the past two decades. Methods: This case control study was conducted on two groups with 100 participants including 100 preterm infants (case) and 100 term infants (control) with gender match in Kurdistan Province-Iran in 2018. The required information was collected from medical files and interviewing the mothers as to demographical information, midwifery specifications, background diseases, disease over pregnancy term, and infants’ information. Conditional logistic regression test was used to estimate the final model and compute the risk ratio. Results: Multivariate regression analysis showed that the risk of preterm birth in individual with AB blood type was higher (OR=5.04; 95%; CI 1.40-18.08). In addition, the risk of preterm birth was higher in the mothers with a history of stillbirth (OR=13.63; 95% CI 1.39-133.5). Preterm birth was significantly related to the history of birth diseases, history of pregnancy diseases, and using medicine for specific diseases during pregnancy. Conclusions: Blood type of mother, history of still birth, history of birth disease, history of pregnancy diseases, using medicines for specific diseases, and history of preterm birth were the risk factors of preterm birth. These factors need to be taken into account before and during pregnancy. Paying more attention to these factors attenuates the rate of preterm birth and premature infants and in turn the mortality rate of infants and mothers.

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Risk factors for bovine anthrax in Bangladesh, 2010–2014: a case-control study

Epidemiology and Infection ◽

10.1017/s0950268820000576 ◽

2020 ◽

Vol 148 ◽

Cited By ~ 1

Author(s):

F. I. Rume ◽

M. R. Karim ◽

C. R. Ahsan ◽

M. Yasmin ◽

P. K. Biswas

Keyword(s):

Risk Factors ◽

Case Control Study ◽

Hot Spot ◽

Conditional Logistic Regression ◽

Herd Size ◽

Case Control ◽

Matched Pair ◽

Matched Pair Analysis ◽

History Of ◽

Control Study

Abstract A matched case-control study was conducted in Bangladesh by enrolling case smallholdings of cattle affected with anthrax in the period of October 2010 to December 2014. The cases were initially reported by mass media and/or in surveillance reports from authorities concerned in the country. In total, 43 case smallholdings were enrolled. For each case, a control was matched by similarity in herd-size and rearing of animals, selected from a distantly located (within 3–10 km) place but within the same sub-district of the case farm. Data collected by administering a prototype questionnaire were analysed by matched-pair analysis and multivariable conditional logistic regression. Out of the 43 smallholdings, 41 were located in three adjoining districts: Pabna, Sirajganj and Tangail, apparently forming a spatial cluster, could be termed ‘anthrax hot spot’ in Bangladesh. Sick animal on farm or a nearby farm slaughtered in the recent past (odds ratio (OR) 12.2, 95% confidence interval (CI) 1.6–93.4, P = 0.016)), history of heavy rains occurring in the last 2 weeks preceding an outbreak (OR 13.1, 95% CI 1.2–147.1, P = 0.037) and disposing of dead animal into nearby water body (OR 11.9, 95% CI 1.0–145.3, P = 0.052) were independent risk factors for anthrax in cattle in the country.

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

European Journal of Medical Research ◽

10.1186/s40001-021-00561-3 ◽

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.

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

Journal of Scientific Research ◽

10.3329/jsr.v6i2.17039 ◽

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 studentst-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)

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Diabetes mellitus, anti-secretory drugs and other risk factors for campylobacter gastro-enteritis in adults: a case-control study

Epidemiology and Infection ◽

10.1017/s0950268897008224 ◽

1997 ◽

Vol 119 (3) ◽

pp. 307-311 ◽

Cited By ~ 53

Author(s):

K. R. NEAL ◽

R. C. B. SLACK

Keyword(s):

Diabetes Mellitus ◽

Risk Factors ◽

Case Control Study ◽

Conditional Logistic Regression ◽

Case Control ◽

Postal Questionnaire ◽

Foreign Travel ◽

Drinking Milk ◽

Campylobacter Infection ◽

Control Study

The epidemiology of notified cases of campylobacter gastroenteritis in adults in Nottingham Health District was investigated using a case-control study with a postal questionnaire to ascertain data on risk factors. Over a 14-month period 531 cases (a 73% response rate of all laboratory confirmed cases) and 512 controls replied.Conditional logistic regression analysis was used to determine independent associations with infection. These included foreign travel (odds ratio (OR) 3·4; 95% confidence intervals (CI) 2·0–5·7), diabetes mellitus (OR 4·1, CI 1·1–17), medication with omeprazole (OR 3·5, CI 1·1–12) and H2 and H2 antagonists (OR 3·7, CI 1·3–15), contact with puppies (OR11·3, CI1·2–105), eating chicken (OR 1·4, CI 1·1–1·8) and drinking milk from bottles with tops damaged by a bird (OR 3·3, CI 1·0–11). Preparing main meals (OR 0·9, CI 0·8–1·0) and drinking delivered milk (OR 0·6, CI 0·4–0·9) were associated with a reduced risk of campylobacter infection.Foreign travel was reported in 25% of cases and another 15% had significant associations with other risk factors. The majority of cases, 60%, remained unexplained, indicating the need for further evolution of sporadic cases.

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

Revista Odonto Ciência ◽

10.15448/198-6523.2016.2.21496 ◽

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.

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Potential risk factors for multiple sclerosis in Rio de Janeiro: a case-control study

Arquivos de Neuro-Psiquiatria ◽

10.1590/s0004-282x2009000200011 ◽

2009 ◽

Vol 67 (2a) ◽

pp. 229-234 ◽

Cited By ~ 17

Author(s):

Kátia Regina Penha da Silva ◽

Regina Maria Papais Alvarenga ◽

Oscar Fernandez y Fernandez ◽

Hélcio Alvarenga ◽

Luiz Claudio Santos Thuler

Keyword(s):

Risk Factors ◽

Multiple Sclerosis ◽

Potential Risk ◽

Rio De Janeiro ◽

Case Control Study ◽

Conditional Logistic Regression ◽

Case Control ◽

Potential Risk Factors ◽

Epidemiological Characteristics ◽

Control Study

PURPOSE: To evaluate potential risk factors for the development of multiple sclerosis in Brazilian patients. METHOD: A case control study was carried out in 81 patients enrolled at the Department of Neurology of the Hospital da Lagoa in Rio de Janeiro, and 81 paired controls. A standardized questionnaire on demographic, social and cultural variables, and medical and family history was used. Statistical analysis was performed using descriptive statistics and conditional logistic regression models with the SPSS for Windows software program. RESULTS: Having standard vaccinations (vaccinations specified by the Brazilian government) (OR=16.2; 95% CI=2.3-115.2), smoking (OR=7.6; 95% CI=2.1-28.2), being single (OR=4.7; 95% CI=1.4-15.6) and eating animal brain (OR=3.4; 95% CI=1.2-9.8) increased the risk of developing MS. CONCLUSIONS: RESULTS of this study may contribute towards better awareness of the epidemiological characteristics of Brazilian patients with multiple sclerosis.

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

Infection Control and Hospital Epidemiology ◽

10.1086/661279 ◽

2011 ◽

Vol 32 (9) ◽

pp. 845-853 ◽

Cited By ~ 71

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.

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