scholarly journals Incorrect sleeping position and eye rubbing in patients with unilateral or highly asymmetric keratoconus: a case-control study

2020 ◽  
Vol 258 (11) ◽  
pp. 2431-2439
Author(s):  
Adrien Mazharian ◽  
Christophe Panthier ◽  
Romain Courtin ◽  
Camille Jung ◽  
Radhika Rampat ◽  
...  
Keyword(s):  
Case Control Study ◽  
Statistical Significance ◽  
Univariate Analysis ◽  
Case Control ◽  
Sleeping Position ◽  
History Of ◽  
Sleeping Habits ◽  
Univariate Analyses ◽  
Red Eyes ◽  
Control Study

Abstract Purpose To evaluate eye rubbing and sleeping position in patients with Unilateral or Highly Asymmetric Keratoconus (UHAKC). Methods Case-control study of consecutive UHAKC patients diagnosed at the Rothschild Foundation. Controls were age- and sex-matched, randomly selected refractive surgery clinic patients. Patients self-administered questionnaires regarding their family history of keratoconus, eye rubbing, and sleeping habits. All the eyes underwent a comprehensive ocular examination. Logistic regression was used to analyze univariate and multivariate data to identify risk factors for keratoconus. Results Thirty-three UHAKC patients and 64 controls were included. Univariate analyses showed that daytime eye rubbing [OR = 172.78], in the morning [OR = 24.3], or in eyes with the steepest keratometry [OR = 21.7] were significantly different between groups. Allergy [OR = 2.94], red eyes in the morning [OR = 6.36], and sleeping on stomach/sides [OR = 14.31] or on the same side as the steepest keratometry [OR = 94.72] were also significantly different. The multivariate model also showed statistical significance for most factors including daytime eye rubbing [OR = 134.96], in the morning [OR = 24.86], in the steepest eye [OR = 27.56], and sleeping on stomach/sides [OR = 65.02] or on the steepest side [OR = 144.02]. A univariate analysis in UHAKC group, comparing the worse and better eye, showed that eye rubbing [OR = 162.14] and sleeping position [OR = 99.74] were significantly (p < 0.001) associated with the worse eye. Conclusion Our data suggests that vigorous eye rubbing and incorrect sleeping position are associated with UHAKC. This is especially true in rubbing the most afflicted eye, and contributory sleep position, including positions placing pressure on the eye with the steepest keratometry.

scholarly journals Association between assisted reproductive technology and autism spectrum disorders in Iran: a case-control study

2020 ◽  
Vol 63 (9) ◽  
pp. 368-372
Author(s):  
Ensiyeh Jenabi ◽  
Mahdieh Seyedi ◽  
Ronak Hamzehei ◽  
Saeid Bashirian ◽  
Mohammad Rezaei ◽  
...  
Keyword(s):  
Preterm Delivery ◽  
Case Control Study ◽  
Univariate Analysis ◽  
Autism Spectrum ◽  
Case Control ◽  
Control Group ◽  
Delivery Mode ◽  
History Of ◽  
Male Sex ◽  
Control Study

Background: Autism spectrum disorder (ASD) is a neurodevelopmental disorder defined by impairments in social interaction and verbal and nonverbal communication.Purpose: Determine the association between use of assisted reproduction technology (ART) and the risk of ASD among children.Methods: This case-control study included 300 participants (100 cases, 200 controls). The control group included women with a child aged 2–10 years without ASD, while the cases were women with a child aged 2–10 years with ASD. We used a researcher-made questionnaire. Data were analyzed using Stata ver. 14 at the 0.05 significance level.Results: In the univariate analysis, there was significant association between child sex, delivery mode, history of preterm delivery, history of using ART, and maternal age at child’s birth and the risk of ASD. After the adjustment for other variables, this association was significant for male sex (2.66; 95% confidence interval [CI], 1.11–4.31; P=0.001) and history of using ART (4.03; 95% CI, 1.76–9.21; <i>P</i>=0.001). Therefore, after the adjustment for confounder variables, there was no significant association between ART and the risk of ASD among children (4.98; 95% CI, 0.91–27.30; <i>P</i>=0.065).Conclusion: After the adjustment for other variables, risk factors for ASD were male sex and history preterm delivery. Thus, there was no significant association between ART and the risk of ASD among children.

SERUM PROLACTINE LEVEL IN PATIENTS OF PSORIASIS VULGARIS AND ITS CORRELATION WITH DISEASE SEVERITY: A CASE-CONTROL STUDY

2019 ◽  
Vol 3 (6) ◽  
Author(s):  
Pawan Kumar Saini ◽  
Devendra Yadav ◽  
Rozy Badyal ◽  
Suresh Jain ◽  
Arti Singh ◽  
...  
Keyword(s):  
Disease Severity ◽  
Prolactin Level ◽  
Case Control Study ◽  
Statistical Significance ◽  
Case Control ◽  
Serum Prolactin ◽  
P Value ◽  
Serum Prolactin Level ◽  
R Value ◽  
Control Study

Background: Psoriasis is an autoimmune chronic inflammatory disorder affecting the skin mediated by T-lymphocytes resulting in production of cytokines which cause hyperproliferation of keratinocytes.  Several factors and hormones like Prolactin have an action similar to these cytokines in promoting the multiplication of keratinocytes and other cells like lymphocytes and epithelial cells may have a role on the etiopathogenesis of psoriasis. Aim:-The aim of study is to compare the serum Prolactin levels in patients of psoriasis with a control group. Setting and study design: This is a case-control study conducted in the department of Dermatology, Venereology and Leprosy GMC, Kota over a period of 1year from July 2017 to June 2018 Material and method: The study included 100 cases of psoriasis (60 males and 40 females) and 100 controls similar for age and sex. Serum Prolactin levels were measured by ECLIA and results were obtained. Statistical analysis: Mean and standard deviation were calculated for each variable. Statistical significance of the results was analyzed using correlation analysis (Pearson correlation coefficient) and independent samples t-test. Statistical significance was assumed at p value<0.05. Result: Serum Prolactin level was significantly higher in cases of psoriasis compared to controls (p-value <0.001). PASI score and serum Prolactin levels were found to have a positive correlation (r value = 0.337; p-value: 0.001). No significant  correlation was found between serum levels of Prolactin and duration of disease r value= -0.034, P value =0.733). Serum Prolactin level was higher in male patients compared to females patients. Conclusion:- High serum Prolactin may be a biological marker of disease severity in psoriasis and may have a role in the pathogenesis of psoriasis. Further studies with large sample size are required to confirm this hypothesis.

scholarly journals The association between diabetes and thyroid cancer risk: a hospital-based case-control study in China

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Meng Wang ◽  
Wei-Wei Gong ◽  
Feng Lu ◽  
Ru-Ying Hu ◽  
Qing-Fang He ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Family History ◽  
Case Control Study ◽  
Positive Family History ◽  
Case Control ◽  
Diabetes Duration ◽  
Family History Of Diabetes ◽  
Thyroid Cancer Risk ◽  
History Of ◽  
Control Study

Abstract Background Previous studies have indicated inconsistent relationships of diabetes with thyroid cancer risk, yet little is known in China. In this study, we aimed to investigate the associations between diabetes, diabetes duration and the risk of thyroid cancer in Chinese population. Methods A 1:1 matched case-control study was performed between 2015 and 2017 in Zhejiang Province including 2,937 thyroid cancer cases and 2,937 healthy controls. Odds ratios (ORs) with 95 % confidence intervals (CIs) for thyroid cancer were estimated in logistic regression models. Specific effects stratified by age, as well as sex, body mass index (BMI) and family history of diabetes were also examined. Results Overall, neither diabetes (OR = 0.75, 95 % CI: 0.21–2.73) nor diabetes duration (OR = 0.14, 95 % CI: 0.02–1.22 for diabetes duration ≦ 5 years; OR = 2.10, 95 % CI: 0.32–13.94 for diabetes duration > 5 years) was significantly associated with thyroid cancer. In stratified analyses, significant lower risk of thyroid cancer was observed among subjects with diabetes and shorter diabetes duration ( ≦ 5 years), but limited to those who were aged more than 40 years, female, overweight/obese and had positive family history of diabetes. Conclusions Diabetes and shorter diabetes duration were significantly associated with decreased risk of thyroid cancer in individuals characterized by older age, female sex, higher BMI and positive family history of diabetes.

scholarly journals COVID-19 and Its Symptoms’ Panoply: A Case-Control Study of 919 Suspected Cases in Locked-Down Ovar, Portugal

2021 ◽  
pp. 1-8
Author(s):  
Regina Sá ◽  
Tiago Pinho-Bandeira ◽  
Guilherme Queiroz ◽  
Joana Matos ◽  
João Duarte Ferreira ◽  
...  
Keyword(s):  
Large Scale ◽  
Case Control Study ◽  
Statistical Significance ◽  
Case Control ◽  
Case Definition ◽  
Suspected Case ◽  
Risk Characteristics ◽  
Increased Risk ◽  
Wide Range ◽  
Control Study

<b><i>Background:</i></b> Ovar was the first Portuguese municipality to declare active community transmission of SARS-CoV-2, with total lockdown decreed on March 17, 2020. This context provided conditions for a large-scale testing strategy, allowing a referral system considering other symptoms besides the ones that were part of the case definition (fever, cough, and dyspnea). This study aims to identify other symptoms associated with COVID-19 since it may clarify the pre-test probability of the occurrence of the disease. <b><i>Methods:</i></b> This case-control study uses primary care registers between March 29 and May 10, 2020 in Ovar municipality. Pre-test clinical and exposure-risk characteristics, reported by physicians, were collected through a form, and linked with their laboratory result. <b><i>Results:</i></b> The study population included a total of 919 patients, of whom 226 (24.6%) were COVID-19 cases and 693 were negative for SARS-CoV-2. Only 27.1% of the patients reporting contact with a confirmed or suspected case tested positive. In the multivariate analysis, statistical significance was obtained for headaches (OR 0.558), odynophagia (OR 0.273), anosmia (OR 2.360), and other symptoms (OR 2.157). The interaction of anosmia and odynophagia appeared as possibly relevant with a borderline statistically significant OR of 3.375. <b><i>Conclusion:</i></b> COVID-19 has a wide range of symptoms. Of the myriad described, the present study highlights anosmia itself and calls for additional studies on the interaction between anosmia and odynophagia. Headaches and odynophagia by themselves are not associated with an increased risk for the disease. These findings may help clinicians in deciding when to test, especially when other diseases with similar symptoms are more prevalent, namely in winter.

scholarly journals Risk factors for suicidal tendency in people with epilepsy in China: a case–control study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mintao Lin ◽  
Jiani Chen ◽  
Sisi Li ◽  
Yingjie Qin ◽  
Xuruan Wang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Low Income ◽  
Case Control Study ◽  
Univariate Analysis ◽  
Case Control ◽  
Conditional Inference ◽  
Suicidal Tendency ◽  
Patients With Epilepsy ◽  
Nested Case Control ◽  
Control Study

AbstractPeople with epilepsy (PWE) have an increased suicide prevalence. This study aimed to identify the risk factors for suicidal tendency among PWE in West China. A nested case–control study was designed in a cohort of patients with epilepsy (n = 2087). In total, 28 variates were calculated. In the univariate analysis, unemployment, low income, seizure frequency, seizure-free time, infectious or structural etiology, levetiracetam or phenobarbital use, anxiety, depression, and stigma were associated with suicidal tendency. A multivariate analysis indicated that unemployment (odds ratio [OR] 5.74, 95% confidence interval [CI] 2.13–15.48), levetiracetam use (OR 2.80, 95%CI 1.11–7.05), depression (C-NDDI-E score ≥ 13; OR 3.21, 95%CI 1.26–8.21), and stigma (SSCI score ≥ 16; OR 6.67, 95%CI 1.80–24.69) were independently associated with suicidal tendency. Conditional inference tree analysis indicated that SSCI and C-NDDI-E scores could effectively identify patients with suicidal tendency. Thus, this study suggests that unemployment, levetiracetam use, depression, and stigma are independent risk factors for suicidal tendency in PWE in China.

scholarly journals Association of placental chorangiosis with pregnancy complication and prenatal outcome: a case-control study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Homeira Vafaei ◽  
Zinat Karimi ◽  
Mojgan Akbarzadeh-Jahromi ◽  
Fatemeh Asadian
Keyword(s):  
Case Control Study ◽  
Gestational Hypertension ◽  
Statistical Significance ◽  
Placental Tissue ◽  
Case Control ◽  
Low Grade ◽  
Amniotic Fluid Index ◽  
Significance Level ◽  
Adverse Pregnancy ◽  
Control Study

Abstract Background Chorangiosis is a vascular change involving the terminal chorionic villi in the placenta. It results from longstanding, low-grade hypoxia in the placental tissue, and is associated with such conditions as intrauterine growth restriction (IUGR), diabetes, and gestational hypertension in pregnancy. Chorangiosis rarely occurs in normal pregnancies. However, its prevalence is 5–7% of all placentas from infants admitted to newborn intensive care units. The present study was aimed at determining the association of chorangiosis with pregnancy complications and perinatal outcomes. Methods In this case-control study, 308 chorangiosis cases were compared with 308 controls (with other diagnoses in pathology) in terms of maternal, placental, prenatal, and neonatal characteristics derived from the medical records of participants retrospectively. R and SPSS version 22 software tools were used, and the statistical significance level was considered 0.05 for all the tests. Results Preeclampsia, diabetes mellitus, maternal hemoglobin, maternal hematocrit, C/S, oligohydramnios, fetal anomaly, dead neonates, NICU admissions were significantly higher in the chorangiosis group OR = 1.6, 3.98, 1.68, 1.92, 2.1, 4.47, 4.22, 2.9, 2.46, respectively (p-value< 0.05 for all). Amniotic fluid index, birth weight, cord PH amount, 1st, and 5th Apgar score was lower in the chorangiosis group OR = 0.31, 1, 0.097, 0.83, 0.85, respectively (p-value< 0.05 for all). Moreover, fundal placenta, retro placental hemorrhage, perivillous fibrin deposition, calcification, and acute chorioamnionitis were higher in the chorangiosis group OR = 2.1, 11.8, 19.96, 4.05, and 6.38 respectively, (p-value< 0.05). There was a high agreement between the two pathologists, and the power of the study was estimated at 99%. Conclusion Although chorangiosis is an uncommon condition, it is associated with a higher incidence of perinatal and neonatal morbidity and mortality. Therefore, it should be considered an important clinical sign of adverse pregnancy outcomes and should be reported in the pathology evaluation.

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 Detection of Atypical Porcine Pestivirus in Piglets from Danish Sow Herds

Viruses ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 717
Author(s):  
Kasper Pedersen ◽  
Charlotte Sonne Kristensen ◽  
Bertel Strandbygaard ◽  
Anette Bøtner ◽  
Thomas Bruun Rasmussen
Keyword(s):  
North America ◽  
Case Control Study ◽  
Case Control ◽  
Common Finding ◽  
Blood Samples ◽  
Pig Production ◽  
History Of ◽  
Congenital Tremor ◽  
Control Study

Atypical porcine pestivirus (APPV) was first discovered in North America in 2015 and was later shown to be associated with congenital tremor (CT) in piglets. CT is an occasional challenge in some Danish sow herds. Therefore, we initiated an observational case control study to clarify a possible relationship between CT and APPV in Danish pig production. Blood samples were collected from piglets affected by CT (n = 55) in ten different sow herds and from healthy piglets in five sow herds without a history of CT piglets (n = 25), as well as one sow herd with a sporadic occurrence of CT (n = 5). APPV was detected by RT-qPCR in all samples from piglets affected by CT and in three out of five samples from piglets in the herd with a sporadic occurrence of CT. In the herds without a history of CT, only one out of 25 piglets were positive for APPV. In addition, farmers or veterinarians in CT-affected herds were asked about their experience of the issue. CT is most often seen in gilt litters, and a substantial increase in pre-weaning mortality is only observed in severe cases. According to our investigations, APPV is a common finding in piglets suffering from CT in Denmark.

Immune-response against Streptococcus pyogenes in the development of abdominal aortic aneurysm – A population-based case-control study

VASA ◽  
2008 ◽  
Vol 37 (2) ◽  
pp. 143-149 ◽  
Author(s):  
Wanhainen ◽  
Rasmussen ◽  
Björck ◽  
Björck
Keyword(s):  
Immune Response ◽  
Abdominal Aortic Aneurysm ◽  
Streptococcus Pyogenes ◽  
Case Control Study ◽  
Population Based ◽  
Case Control ◽  
Abdominal Aortic ◽  
History Of ◽  
Antibody Levels ◽  
Control Study

Background: In a population-based case-control study the association between antibodies to Streptococcus pyogenes antigens and the development of abdominal aortic aneurysm (AAA) was analysed. Patients and methods: Forty-two patients with screening-detected AAA were compared to 100 age- and sex matched controls with normal aortas. Antibodies against three recently characterized cell wall-attached proteins of S. pyogenes (SclA, SclB and GRAB) were analysed in plasma samples obtained at screening (current), and in samples obtained from a study conducted 12 years previously on the same population (historical). Results: Historical antibody levels against the S. pyogenes antigen GRAB were significantly higher in AAA patients compared with controls (0.25 vs 0.17, p = 0.021). A similar trend was observed in current GRAB antibody levels (0.23 vs 0.17, p = 0.072). GRAB-antibody levels at age 60 years retained the association with AAA in a logistic regression model after adjustment for a history of atherosclerosis (OR 20.2, p = 0.022), current smoking (OR 21.4, p = 0.025) and family history of AAA (OR 12.9, p = 0.053). Current and historical antibody levels against SclA and SclB in AAA patients were similar to those in controls. Conclusions: The results indicate that the immune response against S. pyogenes protein GRAB may be involved in the pathogenesis of AAA.

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