scholarly journals ABO-RH blood group and risk of covid-19 in a moroccan population

Author(s):  
Mourad Belaouni ◽  
Elhoucine Malki ◽  
Rabii El Bahraouy ◽  
Bouchra El Maliki ◽  
Mohammed Er-Rami ◽  
...  

AbstractIntroductionGiven the rapid spread, significant morbidity and mortality associated with COVID-19, there has been scientific interest in obtaining data detailing the factors influencing the risk of COVID-19 infection. The aim of this study was to reveal a possible association between the ABO-RH system and the risk of COVID-19 in the Moroccan population.Materials and methodsThis is an analytical cross-sectional study. It was carried out on 1094 patients for the diagnosis of Covid-19 by Rt-PCR at the Moulay Ismaïl military hospital in the province of Meknes. All Rt-PCR negative individuals were used as a comparison group.ResultsAmong the 1094 individuals who were diagnosed, RT-PCR for detection of SARS-CoV-2 was positive for 242 individuals. Comparison of the proportions of blood groups of the two groups showed that the proportion of blood group A in patients with COVID-19 was significantly higher than in people in the comparison group (P = 0.007), while the proportion of blood group O in patients with COVID-19 was significantly lower than in people in the control group (P = 0.017). Comparison of the Rh blood groups of the two groups did not find a significant association (P = 0.608).ConclusionAs demonstrated by several previous studies, we concluded that blood group A was associated with a higher risk of acquiring COVID-19. Equally, the O blood group was associated with a lower risk of infection.

2021 ◽  
Vol 39 (2) ◽  
pp. 94-99
Author(s):  
Md Soleman Badsha ◽  
Md Mizanur Rahman Khan ◽  
SM Belal Uddin ◽  
Kamrun Nesa

Introduction: Clinical studies have shown that advanced age and chronic diseases increase the risk of infection. Different studies have found blood groups are also a determining factor of severity. However, in Bangladesh it is yet to have any clinical pattern in this respect. The aim of this study is to find out whether there exists a relationship between the blood groups of the patients and risk of SARS-CoV-2 infection. Methods: The study is a retrospective cohort study. It included all hospitalized RT-PCR confirmed COVID-19 patients in Combined Military Hospital (CMH) Barishal. We included both genders and people who are older than 14 years of age. The study was conducted during the period between 4th June and 3rd August, 2020. In this period total 556 individuals reported and tested for SARS-CoV-2 where COVID +ve patients are served as patient group and COVID –ve patients are served as the controls. Results: Our sample consists of 185 patients; we found a percentage distribution of 34.6%, 39.5%, 5.4%, and 20.54% for blood groups A, B, AB and O, respectively. Blood group A was statistically significantly more frequent among those infected with COVID-19 compared to controls (34.6% vs. 21.83%, p-value 0.045 (<0.05); OR: 1.894).On the other hand, the frequency of blood group O was significantly lower in the COVID-19 patients, compared to the control group (20.54% vs 32.88%, p-value0.049 (<0.05); OR: 0.528). Although there was a higher percentage distribution of the B blood group among COVID-19 patients as compared to the control groups, this difference did not reach statistical significance. Also, there was no significant difference in the risk of COVID-19 in blood group AB with a distribution of 6.2% in control group, and5.4% in COVID-19 patients. Conclusion: The results of the present study suggest that the blood group A might have a role in increased susceptibility to the COVID-19 infection and the blood group O might be somewhat protective. J Bangladesh Coll Phys Surg 2021; 39(2): 94-99


2019 ◽  
Vol 26 (11) ◽  
pp. 1820-1824
Author(s):  
Benash Altaf ◽  
Shireen Jawed ◽  
Fakiha Behram ◽  
Zeeshan Ali Khan ◽  
Shakeela Naz

Objectives: Pakistan has highest mortality rate due to hypertension and its complications. Hypertension is a squealed of Pre- hypertension which is believed to start at adolescent and continue to adulthood. Association of blood group with hypertension is evident but still hypothesized. This study aims to find the frequency of prehypertension and its association with blood group. Study Design: Cross sectional study. Setting:  Aziz Fatimah Medical and Dental College, Faisalabad. Period: 15 March’18 to 15 Sep’18. Material and Methods:  It was comprised of in comprised of 100 MBBS students. Demographic data including age, weight, height, waist and hip circumference, and BMI was determined. Blood group was determined with help of conventional slide method. Blood pressure was measured by auscultatory method. Data was analyzed by using SPSS 21. Continuous variables are given in mean and standard deviation. Categorical data was given in frequency and percentages. P value≤ 0.05 is taken as significant. Results: Out of 100 participants most common blood group was group ‘O’ (43%) followed by B (35 %) and AB (13%) and A (9%).36% of total population was pre-hypertensive and 64% were normotensive. Prehypertension is most commonly found in blood group ‘A’ (77%) followed by blood group ‘O’ (46.5%). Significant difference was found in means of SBP (p value= 0.001*) and DBP (p value= 0.000*) among the various blood groups. Conclusion: Most common blood group in studied population was ‘O’ although hypertension was most commonly observed in blood group A followed by ‘O’.


2016 ◽  
Vol 23 (08) ◽  
pp. 1001-1004
Author(s):  
Naila Parveen ◽  
Javeria Rehman ◽  
Syed Hafeezul Hassan ◽  
Zoya Hassan ◽  
Madiha Rehman

Objectives: To find out the association of body mass index with different bloodgroups in medical students. Background: Increased body mass index leads to obesity and is aprominent risk factor for hypertension and diabetes. Blood groups are known to be associatedwith various diseases and recent studies have shown that a particular blood group with thehighest body mass index appeared to be more susceptible to predisposition to hypertension.Study Design: Cross-sectional study. Setting: Liaquat National Medical College, Karachi.Period: June 2015 to September 2015. Methodology: 181 medical students with 85 malesand 96 females and age ranging from 18-22 years. Weight and height of each student wasmeasured using the standard stadiometer and blood groups were determined using the antisera.Results: Mean age of the participants was 19.92 ± 1.10 years. Blood group “O” wasfound to be most prevalent (39.2%) while blood group “AB” was found to be the least (8.3%).Mean BMI of subjects with blood group A, B, AB and O were found to be 24.3 ± 5.04, 22.6 ±3.59, 23.0 ± 2.91 and 23.7 ± 4.20 kg/m2 respectively. The highest BMI was found in subjectswith blood group “A” 24.3 ± 5.04 kg/m2 and lowest in blood group “AB” 23.0 ± 2.91kg/m2. TheRhesus-D positive and male students had greater body mass index 23.6 ± 3.56 than females23.2 ± 3.44. Comparison of overall mean BMI values among different blood groups showedsignificant difference with p-value < 0.001. Conclusion: Blood group “A” and Rhesus-D positivesubjects especially males were found to be the high risk blood type with predisposition tomorbidity associated with increased body mass index.


2019 ◽  
Vol 26 (08) ◽  
pp. 1333-1338
Author(s):  
Muhammad Tahir ◽  
Gohar Ali ◽  
Ali Ismail

The objective of this study was to determine the blood groups among the patients presenting with ischemic stroke either AB blood group or O blood group is more common (frequent) among these patients irrespective of other known factors responsible for stroke. Study Design: Descriptive, Cross-sectional study. Setting: Department of Medicine, Nishtar Hospital Multan. Period: January 2015 to August 2015. Materials & Methods: We included total 292 patients (40-70 years of age), with ischemic stroke documented on CT scan brain of both gender (male and female). Blood sample of these patients were sent to the central laboratory of Nishtar hospital for blood group determination using standard techniques. Results: Mean age was 56.26 ± 8.28 years. Out of the 292 patients, 163 (55.82%) were male and 129 (44.18%). Frequency of blood group A, B, AB and O in patients with ischemic stroke was found to be 114 patients having blood group A (39.04%), 53 patients having blood group B (18.15%), 26 patients having blood group AB (8.90%) and 99 patients having blood group O (33.90%) respectively. Conclusion: Our study results concluded that there is an association between ABO blood groups and ischemic stroke, irrespective of other risk factors. Our study results have observed that individuals belonging to non-O blood groups (A, B, or AB) are at an increased risk of ischemic stroke as compared to O blood group carriers however we did not control possible impact of confounders such as diabetes, hypertension and dyslipidemia etc. Many studies proved that persons with AB blood groups are at increased of atherosclerosis but no study showed that these persons have increased risk of ischemic stroke or not.


Author(s):  
Nagla A. El-Shitany ◽  
Manal El-Hamamsy ◽  
Ahlam A. Alahmadi ◽  
Basma G. Eid ◽  
Thikryat Neamatallah ◽  
...  

Background and Objectives: Studies have noted that some ABO blood types are more susceptible to COVID-19 virus infection. This study aimed to further confirm the relationship between different blood groups on the vulnerability, symptoms, cure period, and severity among COVID-19 recovered patients. Subjects and Methods: This cross-sectional study approached the participants from the Arab community via social media (mainly Facebook and WhatsApp). The data were collected through two Google Form questionnaires, one for COVID-19 recovered patients (COVID-19 group, n = 726), and the other for the healthy people (Control group, n = 707). Results: The subjects with blood group O were the least likely to be infected with the COVID-19 virus, while those with blood group A were not likely to be the most susceptible. There were significant differences among different ABO blood groups regarding the distribution of oxygen saturation percentage, myalgia, and recovery time after COVID-19 infection (p < 0.01, 0.01, and 0.05, respectively). The blood group A showed the highest percentage of patients who experienced an oxygen saturation range of 90–100%, whereas the blood group O showed the highest percentage of patients who experienced an oxygen saturation range of 70–80%. The blood group A showed the lowest percentage of patients who required artificial respiration, whereas the blood group O showed the highest percentage of patients who required artificial respiration. The blood group B showed the lowest percentage of patients who experienced myalgia and exhibited the lowest percentage of patients who needed 3 weeks or more to recover. Conclusion: The people of blood group O may be the least likely to be infected with COVID-19, however, they may be the more in need of treatment in hospital and artificial respiration compared to the other blood groups.


2021 ◽  
Author(s):  
Nazaneen Omer ◽  
Sarwer Ismael ◽  
Heshu Sulaiman Rahman ◽  
Maryam Mohammed

Abstract Background ABO blood group types are among the risk factors of COVID-19 infection in many recent studies. Thus, the objective of this study is to find the relations between ABO types and COVID-19 infection as well as to find out the riskier group that is associated with hospitalization and the need for O2 support. Methods This observational cross-sectional study was done to identify the risk and relations between ABO blood groups and Rh factor of 530 Iraqi-Kurdish patients affected with COVID-19 infection. Among them, 184 patients were severe cases that needed hospitalization while 346 patients were mild to moderate cases that were treated at home. The diagnosis of COVID-19 infection was based on Real-Time Polymerase Chain Reaction (RT-PCR) test, high-resolution Chest CT scan, strong clinical suspicion plus history of the close home or job contact with COVID-19 confirmed patient. Results There were no significant differences in the distribution of ABO blood grouping in the total COVID-19 cases, however, the severity in form of hospitalization and O2 demand was higher in blood group A whereas the lowest in group B. Male patient were significantly older than females with more prolonged illness duration. The duration of COVID-19 illness, the need for plasma, and the rate of mortality were very significantly higher among hospitalized COVID-19 patients than non-hospitalized. In 37.2% of the patient, the initial presentation was a combination of more than one symptom. In 28% of cases, myalgia was the 1st mono-symptomatic presentation. Conclusions Blood group A is associated with the highest rate of hospitalization and O2 demand, besides, the duration of illness and rate of mortality in males were more than females.


2000 ◽  
Vol 6 (1) ◽  
pp. 156-158
Author(s):  
T. Pramanik ◽  
S. Pramanik

The frequencies of ABO and rhesus blood groups vary from one population to another. We studied blood group distribution in 120 Nepalese students; 34% were blood group A, 29% group B, 4% group AB and 32.5% group O. The frequency of Rh-negative blood was 3.33% and Rh-positive 96.66%


PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249252
Author(s):  
Reaz Mahmud ◽  
Mohammad Aftab Rassel ◽  
Farhana Binte Monayem ◽  
S. K. Jakaria Been Sayeed ◽  
Md Shahidul Islam ◽  
...  

Background Globally, studies have shown conflicting results regarding the association of blood groups with SARS CoV-2 infection. Objective To observe the association between ABO blood groups and the presentation and outcomes of confirmed COVID-19 cases. Design, setting, and participants This was a prospective cohort study of patients with mild-to-moderately severe COVID-19 infections who presented in the COVID-19 unit of Dhaka Medical College Hospital and were enrolled between 01 June and 25 August, 2020. Patients were followed up for at least 30 days after disease onset. We grouped participants with A-positive and A-negative blood groups into group I and participants with other blood groups into group II. Results The cohort included 438 patients; 52 patients were lost to follow-up, five died, and 381 completed the study. The prevalence of blood group A [144 (32.9%)] was significantly higher among COVID-19 patients than in the general population (p < 0.001). The presenting age [mean (SD)] of group I [42.1 (14.5)] was higher than that of group II [38.8 (12.4), p = 0.014]. Sex (p = 0.23) and co-morbidity (hypertension, p = 0.34; diabetes, p = 0.13) did not differ between the patients in groups I and II. No differences were observed regarding important presenting symptoms, including fever (p = 0.72), cough (p = 0.69), and respiratory distress (p = 0.09). There was no significant difference in the median duration of symptoms in the two group (12 days), and conversion to the next level of severity was observed in 26 (20.6%) and 36 patients (13.8%) in group I and II, respectively. However, persistent positivity of RT-PCR at 14 days of initial positivity was more frequent among the patients in group I [24 (19%)] than among those in group II [29 (11.1%)]. Conclusions The prevalence of blood group A was higher among COVID-19 patients. Although ABO blood groups were not associated with the presentation or recovery period of COVID-19, patients with blood group A had delayed seroconversion.


Biosfera ◽  
2017 ◽  
Vol 34 (1) ◽  
pp. 47
Author(s):  
Hieronymus Rayi Prasetya ◽  
Bambang Heru Budianto ◽  
Hernayanti Hernayanti

Subgroup A1 and A2 are the most important in the blood group A. Subgroup A1 has the A antigen more than A2 subgroup, the A2 subgroup can cause misidentification of blood group due to poor A antigen and genetic variation possessed. Misidentification of the blood group will increase the risk of transfusion reactions. This research aims to describe the A1 and A2 subgroup population in Kulon Progo district. This study was conducted with a cross sectional sampling technique. The sample in this study were taken from donors of blood group A in Kulon Progo Red Cross. Identification of A1 and A2 subgroup is done by using lectin (Dolichos biflorus extract). The result of the examination of 53 samples showed that 96,2% was A1 subgroup and 3,8% was A2 subgroup.Key words : Subgroup A1, Subgroup A2, Population, Kulon Progo


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