scholarly journals Susceptibility to the novel coronavirus disease (COVID-19) is associated with ABO and Rh blood groups: a case-control study from Afghanistan

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Khyber Saify ◽  
Mohammad Sarwar Alborz ◽  
Mostafa Saadat
Keyword(s):  
Blood Group ◽  
Case Control Study ◽  
Statistical Significance ◽  
Case Control ◽  
Blood Groups ◽  
Control Group ◽  
North East ◽  
Group A ◽  
Novel Coronavirus ◽  
Control Study

Abstract Background There are preliminary studies about the association between COVID-19 and ABO phenotypes and the results are controversial. There are only two studies which investigated the association of Rh blood groups in addition to ABO with COVID-19; however, in the statistical analysis ABO and Rh blood groups have been considered separately. Therefore, the present case-control study was performed to determine the association of COVID-19 with ABO blood groups considering the Rh blood groups simultaneously. The study was conducted in Kunduz COVID-19 treatment specific center, Spin-Zar Hospital (Kunduz Province, North East Afghanistan). A total of 301 confirmed COVID-19 cases and 1039 healthy blood donors as control group were included in the study. Results The Rh− phenotype strongly increased the risk of COVID-19 (OR = 2.97, 95% CI 1.86–3.89, P < 0.001). Although blood group A increased the risk of developing COVID-19, the association did not reach statistical significance. In analysis of the combination phenotypes, the A− blood group remarkably increased the risk of COVID-19 (OR = 7.24, 95% CI 3.62–14.4, P < 0.001). Multivariate analysis revealed that the interaction of Rh and ABO is significant (P < 0.013). Conclusion These findings indicate that susceptibility to COVID-19 is strongly associated with A− blood group.

scholarly journals Association between ABO and Rh Blood Groups and Risk of Preeclampsia: A Case-Control Study from Iran

2017 ◽  
Vol 5 (2) ◽  
pp. 173-176
Author(s):  
Firoozeh Aghasadeghi ◽  
Mostafa Saadat
Keyword(s):  
Blood Group ◽  
Case Control Study ◽  
Neonatal Morbidity ◽  
Case Control ◽  
Blood Groups ◽  
Iranian Population ◽  
Control Group ◽  
Abo Blood Groups ◽  
Control Study ◽  
Risk Of Preeclampsia

AIM: Preeclampsia (PE) is a major cause of maternal and neonatal morbidity and mortality. There is a genetic component in the development of PE with estimated heritability around 0.47. Several studies have investigated the association between maternal ABO blood groups (OMIM: 110300) and risk of PE, with contradictory results have emerged. Considering that there is no study in this filed from Iranian population, the present case-control study was carried out at Shiraz (south-west Iran).MATERIAL AND METHODS: In this study 331 women; 121 pregnant with PE and 210 normotensive pregnant women were included. Using blood group O (for ABO blood groups) or Rh+ (for Rh blood groups) as a reference, odds ratios (ORs) and its 95% confidence intervals (95% CI) of PE risk were estimated from logistic regression analysis.RESULTS: Although the A (OR = 0.67, 95% CI = 0.39-1.17, P = 0.165), B (OR = 0.86, 95% CI = 0.48-1.53, P = 0.615) and AB (OR = 1.14, 95% CI = 0.37-3.45, P = 0.812) phenotypes showed lower risks compared with the O blood group, statistical analysis indicated that there was no significant association between ABO phenotypes and risk of PE. The frequency of Rh- phenotype was higher among PE patients compared with the control group. However, the association was not significant (OR = 1.79, 95% CI = 0.69-4.65, P = 0.229). Adjusted ORs for age of participants and parity did not change the above-mentioned associations.CONCLUSION: Our present findings indicate that there is no association between ABO and Rh blood groups and risk of PE in Iranian population.

scholarly journals Relationship between blood group and gastric carcinoma in Erbil city: A case-control study

2021 ◽  
Vol 25 (3) ◽  
pp. 633-637
Author(s):  
Abdullah Ibrahim
Keyword(s):  
Gastric Carcinoma ◽  
Blood Group ◽  
Case Control Study ◽  
Case Control ◽  
Blood Groups ◽  
Abo Blood Group ◽  
Abo Blood Groups ◽  
Group A ◽  
And Control ◽  
Control Study

Background and objective: Gastric carcinoma can be caused by the interaction between environmental factors and genetic variations. The relationship between ABO blood groups and carcinogenesis or progression of human tumors has been reported by many investigations. This study aimed to understand the correlation between ABO blood groups and the risk of developing gastric carcinoma. Methods: This case-control study included the ABO blood group and rhesus system of 92 patients diagnosed with gastric carcinoma at Erbil city from 2017 to 2019. Informed consent was obtained from all patients. As a control, the blood group from 260 healthy blood donors was collected from Erbil blood bank. Results: Of 92 patients, 58.7% were males, and 41.3% were females. The mean age was 62 (28 - 97) years. Regarding the type of gastric carcinoma, 58.7% were intestinal, and 41.3% were diffuse type. Blood group and rhesus system of patients and control were compared. Blood group O was 47.8% in cases versus 40.8% in control and 42.6% in all participants, followed by blood group A (31.5% of gastric carcinoma patients and 26.5% of control with a total of 27.8% of all participants). Regarding the Rhesus system, 92.4% of cases were Rh+, and 7.6% were Rh- compared with 92.9% Rh+and 7.1% Rh- in control. None of them was statistically significant. Conclusion: There was no statistically significant association between blood groups and gastric carcinoma, although blood group O was more common, followed by A. Keywords: Gastric carcinoma; ABO blood group; Erbil.

scholarly journals Is There a Relation between ABO Blood Groups and Clinical Outcome in Patients with Pemphigoid? A Case-Control Study

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Sedigheh Bakhtiari ◽  
Parviz Toosi ◽  
Somayyeh Azimi ◽  
Nafiseh Esmaili ◽  
Ali Montazami ◽  
...  
Keyword(s):  
Blood Group ◽  
Case Control Study ◽  
Case Control ◽  
Blood Groups ◽  
Control Group ◽  
Abo Blood Groups ◽  
Chi Square ◽  
Chi Square Test ◽  
Group B ◽  
Control Study

Background.Relationship between blood groups and dermatologic diseases remains controversial and was not yet fully elucidated nor explained clearly. The aim of this study was to examine if any relation exists between different types of pemphigoid diseases and ABO blood group.Methods.In this case-control study, 159 pemphigoid patients and 152 healthy matched-controls were evaluated. All blood group (including Rh status) data for the study was obtained from the hospital medical records. Statistical comparisons were completed with chi-square test and logistic regression.Results.Blood group “O” was found in 32.9% of patients and 38.2% of control group. Blood group “A” was found among 30.8% of patients and 34.2% of control group, while group “B” was reported in 27.4% of cases and 21.1% of controls and “AB” was identified among 8.9% of patients and 6.6% of control group. 84.9% of patients were Rh positive, while in the control group 86.2% of patients were Rh positive. No significant differences were found regarding ABO blood groups (P=0.46) or Rh (P=0.76) between pemphigoid patients and control group. Also, older females had the higher risk of developing bullous pemphigoid.Conclusion.We found no relationship between ABO blood groups and pemphigoid disease.

scholarly journals ABO blood group and risk of glioma: A case control study from Serbia

2019 ◽  
Vol 76 (5) ◽  
pp. 465-469
Author(s):  
Ana Azanjac-Arsic ◽  
Svetlana Miletic-Drakulic ◽  
Katarina Vesic ◽  
Gordana Toncev
Keyword(s):  
Body Mass Index ◽  
Blood Group ◽  
Case Control Study ◽  
Binary Logistic Regression ◽  
Case Control ◽  
The Body ◽  
Control Group ◽  
Increased Risk ◽  
Group A ◽  
Control Study

Backgraund/Aim. Gliomas are the most common primary brain tumors and the etiology is unknown. The aim of this study was to investigate possible association between incidence in relation to glioma and certain blood groups. Methods. The case-control study included 100 pathologically confirmed cases of glioma at the Clinical centar of Kragujevac, Serbia, between 2014 and 2015, and 200 age and sex-matched controls without malignant diseases in personal and family history at the same institution. After signing the informed consent, all patients filled out an epidemiological questionnaire. Results. In the analysis comparing the glioma patients with the control group, a significant association (p < 0.0005) was observed in relation to the blood group AB. Furthermore, it was not observed a significant association in relation to the blood group A (p = 0.070), blood group B (p = 0.256), blood group O (p = 0.768) among the compared groups. Also, in the analysis comparing glioma patients with the control group, a significant association was observed in relation to the years spent in hometown (p = 0.035), changing the place of residence (p = 0.007), the body weight (p = 0.002) and the body mass index (p < 0.0005). Univariate binary logistic regression showed that higher number of years spent in the hometown [odds ratio (OR) 1.011 95% confidence interval (Cl) 1.000? 1.023; p = 0.043], increased body weight (OR 0.976 95% Cl 0.959?0.993, p = 0.006) and increased body mass index (OR 0.898 95% Cl 0.839?0.961; p = 0.002) increase the risk of glioma. However, a change of the residence decreases the risk of glioma (OR 0.327 95% Cl 0.147?0.727; p = 0.006). Univariate binary logistic regression analysis revealed that the individuals with group AB were at 3.5-fold increased risk of developing glioma compared to the individuals with other ABO blood groups (OR 3,429 95% Cl 1,83?6,41; p < 0.0005). Also, there was more male patients with glioma with the blood group AB (p = 0.001). Conclusion. In a present study, we demonstrate that individuals with the group AB have an increased risk of developing glioma.

scholarly journals Minimally invasive total knee arthroplasty using the contralateral knee as a control group: a case-control study

2009 ◽  
Vol 34 (4) ◽  
pp. 491-495 ◽  
Author(s):  
Peter M. Bonutti ◽  
Michael G. Zywiel ◽  
Thorsten M. Seyler ◽  
Seung Yong Lee ◽  
Mike S. McGrath ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Minimally Invasive ◽  
Knee Arthroplasty ◽  
Case Control Study ◽  
Case Control ◽  
Control Group ◽  
Contralateral Knee ◽  
Group A ◽  
Total Knee ◽  
Control Study

Association of Dyslipidemia with Uterine Fibroid: A Case Control Study

2020 ◽  
Vol 33 (2) ◽  
pp. 100-106
Author(s):  
Shahzadi Afruza ◽  
AKM Azad Hossain ◽  
Jesmin Jahan ◽  
Asma Sharmin ◽  
Halima Naznin ◽  
...  
Keyword(s):  
Uterine Fibroid ◽  
Case Control Study ◽  
Statistical Significance ◽  
Hormonal Treatment ◽  
Case Control ◽  
Atherogenic Index ◽  
Control Group ◽  
Case Group ◽  
Control Study ◽  
Inpatient Department

Background & objective: Uterine fibroid (UF) is the most common gynaecological neoplasm. Despite the major public health impact of UF, little is known about their association. Some studies focused on the similarities between the common biological mechanisms underlying the development of UF and atherosclerotic plaques. So, it is possible to hypothesize that same atherogenic risk factors, such as dyslipidemia may play a role in UF pathogenesis. This study was carried out to investigate the lipid profile in patients with UF and to analyze the association of dyslipidemia with UF. Materials & Methods: This case-control study was carried out in the outpatient and inpatient Department of Obstetrics & Gynaecology, BSMMU, Shahbag, Dhaka over a period of 12 months between March 2017 to February 2018. Participants were 100 in number and aged between 18 and 45 years. Cases consisted of 50 women with uterine fibroids diagnosed by ultrasonography attending the outpatient and inpatient department of obstetrics and gynaecology, BSMMU, having no previous hormonal treatment. A similar number of age matched women without UF visiting the same gynaecological outpatient clinic for routine reasons were recruited as controls. Women who were postmenopausal, pregnant, diagnosed cases of malignant diseases, diagnosed cases of hypertension, diabetes mellitus, thyroid disease, CLD and CKD and women undergoing hormonal therapy were excluded from the study. Fasting lipid profiles were determined in blood samples taken from each participant. Atherogenic index was also calculated. Chi-square test was used for testing statistical significance. Statistical significance was set at p < 0⋅05. Results: Women with UF were found to have significantly higher levels of serum TC, TG and significantly lower level of HDL-C compared to the controls (p<0.05). The mean atherogenic index was 4.30±1.41 in case group and 2.86±0.97 in control group. The difference was statistically significant (p<0.05) between two groups. Conclusion: There is an association between dyslipidemia and UF. Women with UF have higher atherogenic index compared to women without UF. TAJ 2020; 33(2): 100-106

Case—control study of stereotactic radiosurgery for recurrent glioblastoma multiforme

2005 ◽  
Vol 103 (2) ◽  
pp. 210-217 ◽  
Author(s):  
Anita Mahajan ◽  
Ian E. McCutcheon ◽  
Dima Suki ◽  
Eric L. Chang ◽  
Samuel J. Hassenbusch ◽  
...  
Keyword(s):  
Case Control Study ◽  
Case Control ◽  
Recurrent Glioblastoma ◽  
Control Group ◽  
Case Group ◽  
Recurrent Glioblastoma Multiforme ◽  
Content Type ◽  
Group A ◽  
Control Study ◽  
Fine Print

Object. The role of stereotactic radiosurgery (SRS) for recurrent glioblastoma multiforme (GBM) was evaluated in a case—control study. Methods. All patients who underwent SRS for recurrent GBM before March 2003 formed the case group. A control group of patients who did not undergo SRS was created from an institutional database, and each case was matched for known prognostic factors in GBM. The medical and neuroimaging records of all the patients were reviewed, and survival and treatment outcomes were recorded. The case and control groups were well matched with regard to demographics and pre-SRS interventions. In the control group, the date on which magnetic resonance imaging identified a recurrent lesion that would have been eligible for SRS was deemed the “SRS” date. The number of surgeries performed in the control group was statistically higher than that in the case group. The median duration of overall survival from diagnosis was 26 months in the case group and 23 months in the control group. From the date of SRS or “SRS”, the median duration of survival was 11 months in the case group and 10 months in the control group, a difference that was not statistically significant. Conclusions. It appears that a subgroup of patients with GBMs has a higher than expected median survival duration despite the initial prognostic factors. In patients with localized recurrences, survival may be prolonged by applying aggressive local disease management by using either SRS or resection to equal advantage.

scholarly journals Testicular shear wave elastography in oligo-astheno-teratozoospermic individuals: a prospective case–control study

2021 ◽  
Author(s):  
Ester Illiano ◽  
Francesco Trama ◽  
Antonio Ruffo ◽  
Giuseppe Romeo ◽  
Filippo Riccardo ◽  
...  
Keyword(s):  
Shear Wave ◽  
Case Control Study ◽  
Shear Wave Elastography ◽  
Case Control ◽  
Semen Parameters ◽  
Control Group ◽  
Group A ◽  
Group B ◽  
Control Study ◽  
Prospective Case Control Study

Abstract Purpose The primary objective of this study was to evaluate the testicular stiffness by ultrasound shear wave elastography (SWE) both in men with oligo-astheno-teratozospermia (OAT) and in control group. The secondary objective was to identify a possible correlation between semen quality with testicular stiffness. Methods This was a prospective case-control study. We divided the sample in two groups; Group A (case group) included men with OAT, and Group B (control group) men with normal sperm parameters. All participants had at last two semen analysis in the past 180 days (at last 90 days apart), using performed ultrasound and SWE elastography. Results We analyzed 100 participants, 50 patients in Group A and 50 controls in Group B. There were statistically significant differences in term of testicular volume and testicular stiffness between two groups. Men with OAT had the testicular stiffness value higher than the controls in both sides (left testicular stiffness 21.4 ± 5.4 kPa vs 9.9 ± 1.6 kPa, p < 0.0001; right testicular stiffness 22.9 ± 4.8 kPa vs 9.5 ± 2.4 kPa, p < 0.0001). Men with abnormal semen parameters showed an inverse correlation between the mean value of testicular stiffness and total sperm count (22.15 ± 3.38 kPa, r = − 0.387, p = 0.005), sperm concentration (22.15 ± 3.38 kPa, r = − 0.244, p = 0.04), and progressive motility (22.15 ± 3.38 kPa, r = − 0.336, p = 0.01), while the correlation was not evident in controls group. Conclusion SWE is able to differentiate between testicles with spermatogenic changes from a healthy testicle. For this reason, it could be used to evaluate, in a non-invasive way, the tissue alterations of the organ.

scholarly journals The lower methylation of RANK is associated with osteoporosis in male aged general population of Xinjiang: A Case-Control Study

2020 ◽  
Author(s):  
Junjing Shang ◽  
Hong xiang ◽  
Xue Bai ◽  
Buluhan Halan ◽  
Hongmei Wang
Keyword(s):  
Blood Pressure ◽  
General Population ◽  
Case Control Study ◽  
Statistical Significance ◽  
Multivariate Logistic Regression Analysis ◽  
Case Control ◽  
Control Group ◽  
Case Group ◽  
Methylation Rate ◽  
Control Study

Abstract Background RANK is a candidate gene for osteoporosis on both functional and genetic grounds. The study is to investigate the relationships between the methylation of RANK and osteoporosis in aged general population. Methods On the basis of an epidemiological investigation, we detect for methylation CpGs in promoter of RANK in 32 aged subjects (16 males and 16 females) firstly. Secondly, after considering the relationships among osteoporosis and the methylation rate of identified CpGs in male and female subjects, the selected representatives CpGs were detected in 90 male aged general subjects (43 controls and 47 cases) by bisulfite sequencing. Then a case-control study is conducted. Results Age and the prevalence of diabetes were significantly difference between the case patients and control individuals (P = 0. 025, P = 0. 005)., There was no statistical significance between the case group and the control group for the following values: systolic blood pressure, diastolic blood pressure, body mass index, 25-dihydroxyvitaminD3, folic acid, testosterone, creatinine, serum calcium concentration, and the prevalence of smoking, drinking and hypertension (P > 0.05). The methylation rate of RANK in control group was significant higher than that in osteoporosis group (P < 0.001). In addition, by covariance analysis to adjust age, prevalence of smoking, drinking, hypertension, and diabetes, the methylation rate of RANK in control group was significant higher than that in osteoporosis group in male aged general population of Xinjiang (P = 0.001). After adjusting for confounding factors (age, smoking, drinking, and diabetes), multivariate logistic regression analysis also showed that lower methylation of RNAK gene were significantly associated with osteoporosis (OR = 0.930, 95% CI = 0.886–0.976) Conclusions The lower methylation rate of RANK was associated with osteoporosis in male aged general population of Xinjiang. This confirms that lower methylation of RANK might be involved in the pathogenesis of osteoporosis

scholarly journals Impact of SARS-CoV-2 Infection During Pregnancy on Infant Neurobehavioral Development: A Case-Control Study

2021 ◽  
Vol 9 ◽  
Author(s):  
Yao Cheng ◽  
Haoyue Teng ◽  
Yue Xiao ◽  
Mengxin Yao ◽  
Jieyun Yin ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Case Control Study ◽  
Statistical Significance ◽  
Case Control ◽  
Control Group ◽  
Neurobehavioral Development ◽  
Ages And Stages Questionnaires ◽  
Group 5 ◽  
Larger Sample ◽  
Control Study

Background: Previous studies on the pneumonia outbreak caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have focused on the general population and pregnant women, while little is known about the effects of SARS-CoV-2 on retardation during and after pregnancy. The purpose of this study was to evaluate the potential influence of SARS-CoV-2 on infant neurobehavioral development.Methods: A case-control study was conducted in Wuhan Maternal and Child Health Hospital, China. Nine pregnant women with SARS-CoV-2 infection and 9 controls matched by maternal age, parity, and status of chronic disease were included. Infantile neurobehavioral development was assessed through the Ages and Stages Questionnaires Edition 3 (ASQ-3).Results: The majority of pregnant women with SARS-CoV-2 experienced cesarean section (7 of 9), which was higher than the control group (5 of 9). The throat swabs of all newborn were negative. We found that compared with the control group, neonates of mothers with SARS-CoV-2 infection during pregnancy had lower scores in communication, gross movement, fine movement, problem solving, and personal-social domains; but only fine movement domain yielded statistical significance (P = 0.031).Conclusion: Infection with SARS-CoV-2 during pregnancy may have a certain impact on infant neurobehavioral development. Further studies with larger sample size are warranted for validation.

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