Blutgruppen bei Bantu-Populationen aus Angola zugleich ein Beitrag zur Berechnung der Vaterschafts-wahrscheinlichkeit bei Gutachten mit Negern als Eventualvätern

Spielmann, W.; Teixidor, D.; Matznetter, T

doi:10.1007/bf01631043

Cited by 13 publications

(9 citation statements)

References 10 publications

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“…A previous study reported that the Angolan general population is mostly from the blood group O and Rh+, 19,29,30 which is in agreement with the ndings of our study (Table 2). Despite this, our results disagree with the results of a recent study carried out in 2020 by Sacomboio et al, where they identi ed a higher prevalence of blood group B (36.4%, n = 36/99) in a population from Luanda 22 , instead of the O group.…”

Section: Discussionsupporting

confidence: 93%

“…From the point of view of evolution and trend of ABO blood groups in the general population between 1973 and 2020, there was an increase in blood group O (from 52-64%) and a decrease in blood groups A (from 21-18%) and B (24-16%), while the AB blood group remained around 3%. 29 On the other hand, comparing the evolution within the hypertensive population in recent years (from 2019 to 2020) according to ABO blood group phenotypes, there was an increase in blood pressure among individuals of the groups O (from 33-64%) and A (from 17-28%) and a reduction among individuals of the group B (from 36-8%) and AB (from 13-0%). 22 Despite the reduction of blood group B in the general and hypertensive population over the years, we identify that group B donors had up to 3 times more risk of developing high blood pressure, corresponding with the ndings of Sacomboio et al, which revealed that blood group B individuals, seem to be more susceptible to hypertension.…”

Section: Discussionmentioning

confidence: 99%

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Demographic characteristics and risk factors related to high blood pressure among healthy blood donors from Luanda, Angola

Sebastião¹,

Sacomboio²,

Francisco³

et al. 2022

Preprint

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Hypertension is a public health concern, mainly in resource-limited countries. We investigated the characteristics and risk factors related to high blood pressure in healthy blood donors from Angola. This was a multicentre retrospective study that includes 343 donors from December 2019 to September 2020. Men represented 93% of the population. The mean age was 32 ± 9 years. Mean systolic blood pressure (SBP) was 131 ± 12.3mmHg (ranging from 100mmHg to 160mmHg) and diastolic blood pressure (DBP) was 80.1 ± 9.72mmHg (from 56.0mmHg to 100mmHg). DBP was related to age and gender (p < 0.05). About 7.3% of the donors had high-pressure (> 140/90mmHg). Age between 20–40 years (OR: 2.52, p = 0.043), women (OR: 1.87, p = 0.548), non-urbanized areas (OR: 0.39, p = 0.067), high educational level (OR: 0.76, p = 0.637), employed (OR: 0.49, p = 0.491), voluntary donors (OR: 0.87, p = 0.799), blood group B (OR: 2.06, p = 0.346), and Rh- (OR: 0.26, p = 0.104), were potentially related with high-pressure. The high-pressure cases increased from December 2019 (4%) to September 2020 (28%) (p = 0.019). We showed high pressure among the healthy population. Demographic characteristics, ABO/Rh group, and year’s period are features that should be considered in cardiovascular disease control strategies. Biological and non-biological features related to blood pressure changes should be considered for further studies in the Angolan population.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Demographic characteristics and risk factors related to high blood pressure among healthy blood donors from Luanda, Angola

Sebastião¹,

Sacomboio²,

Francisco³

et al. 2022

Preprint

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“…In terms of ABO/Rh blood groups, it is worth mentioning at the rst stage that different from the Rh + factor that represented over 50% of the Angola population, the blood group O despite being the most prevalent, no longer represents more than 50% of the population (Table 2). This differs from the prevalence described in a study carried out in 1973 by Spielmann and colleagues, where blood group O represented between 54 to 59% of the Angolan population, 33 suggestings a decrease of blood group O in the population over the years. Indeed, a recent study carried out by our research team, showed a signi cant increase in non-O blood groups, with special attention to blood group B, 29 which, in addition to increasing its prevalence, has been associated with the risk of arterial hypertension in the Angolan population.…”

Section: Discussioncontrasting

confidence: 94%

Blood pressure pattern among blood donors exposed to SARS-CoV-2 in Luanda, Angola

Sebastião

Sacomboio

Francisco

et al. 2022

Preprint

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Background SARS-CoV-2 infection is a global public health concern. Several aspects related to the pattern of infection remain unclear. Herein, we investigated the blood pressure pattern among blood donors exposed to SARS-CoV-2 in Luanda, the capital city of Angola, a sub-Saharan African country. Methods We performed a retrospective analysis containing 343 blood donors from December 2019 to September 2020. Parametric tests compared means while Chi-square and logistic regression checked features associated with high blood pressure and were considered significant when p < 0.05. Results The mean age of blood donors was 32.2 ± 8.81 years (ranging from 18 to 61 years) and 93% of the men's gender. Overall, 4.7% of the studied population had been exposed to SARS-CoV-2. High blood pressure prevalence increased from unexposed to exposed SARS-CoV-2 (6.7–18.8%, p = 0.071). SARS-CoV-2 exposure increase systole (131 ± 12.2mmHg to 136 ± 14.2mmHg, p = 0.098), diastole (79.9 ± 9.53mmHg to 84.2 ± 12.7mmHg, p = 0.086), pulse in beats per minute (72.0 ± 11.1 to 73.7 ± 8.50, p = 0.553), and decrease donating time (6.31 ± 3.72 minutes to 5.48 ± 1.61 minutes, p = 0.371). Chances of having high blood pressure were high [OR: 3.20 (95% CI: 0.85–12.1), p = 0.086] in exposed SARS-CoV-2. Blood donors exposed to SARS-CoV-2 with abnormal donation time increased from the donor up to 40 years to over 40 years (from 35.7–50%, p = 0.696). The mean systolic, diastolic, and pulse pressure were higher for non-O blood group donors (p > 0.05). A statistically significant link was observed, between the Rhesus factor and blood pressure status (p = 0.032). Conclusions We showed important variations in blood pressure indices of the Angolan population exposed to SARS-CoV-2. Older age and non-O blood groups appear to be important biological factors for SARS-CoV-2 infection, as well as the risk of developing cardiovascular disease after or during SARS-CoV-2 exposure. Further studies assessing the impact on cardiovascular functions with ongoing or long-term SARS-CoV-2 exposure in individuals from resource-limited countries should be considered.

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“…A previous study reported that the Angolan general population is mostly from the blood group O and Rh+, 21,31,32 which is in agreement with the findings of our study ( with chronic diseases. From the point of view of evolution and trend of ABO blood groups in the general population between 1973 and 2020, there was an increase in blood group O (from 52% to 64%) and a decrease in blood groups A (from 21% to 18%) and B (from 24% to 16%), while the AB blood group remained around 3%.…”

Section: Discussionsupporting

confidence: 94%

Demographic characteristics and risk factors related to high blood pressure among healthy blood donors from Luanda, Angola: A retrospective study

Sebastião

Sacomboio

Francisco³

et al. 2023

Health Science Reports

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Background and Aims Hypertension is a public health concern, mainly in resource‐limited countries. We investigated the characteristics and risk factors related to high blood pressure in healthy blood donors from, Luanda, the capital city of Angola. Methods This was a retrospective study that included 343 healthy donors from December 2019 to September 2020. Results The mean age was 32 ± 9 years. Men represented 93% of the population. Mean systolic blood pressure (SBP) was 131 ± 12.3 mmHg (ranging from 100 to 160 mmHg) and diastolic blood pressure (DBP) was 80.1 ± 9.72 mmHg (from 56.0 to 100 mmHg). DBP was related to age and gender (p < 0.05). About 7.3% of the donors had high‐pressure (>140/90 mmHg). Age between 20 and 40 years (odds ratio [OR]: 2.52, p = 0.043), women (OR: 1.87, p = 0.548), nonurbanized areas (OR: 0.39, p = 0.067), high educational level (OR: 0.76, p = 0.637), employed (OR: 0.49, p = 0.491), voluntary donors (OR: 0.87, p = 0.799), blood group B (OR: 2.06, p = 0.346), and Rh‐ (OR: 0.26, p = 0.104), were potentially related with high‐pressure. The high‐pressure cases increased from December 2019 (4%) to September 2020 (28%) (p = 0.019). Conclusion We showed high pressure among the healthy blood donors population. Demographic characteristics, ABO/Rh blood group, and year period are features that should be considered in cardiovascular disease control strategies. Biological and nonbiological features related to blood pressure changes should be considered for further studies in the Angolan population.

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Blutgruppen bei Bantu-Populationen aus Angola zugleich ein Beitrag zur Berechnung der Vaterschafts-wahrscheinlichkeit bei Gutachten mit Negern als Eventualvätern

Cited by 13 publications

References 10 publications

Demographic characteristics and risk factors related to high blood pressure among healthy blood donors from Luanda, Angola

Demographic characteristics and risk factors related to high blood pressure among healthy blood donors from Luanda, Angola

Blood pressure pattern among blood donors exposed to SARS-CoV-2 in Luanda, Angola

Demographic characteristics and risk factors related to high blood pressure among healthy blood donors from Luanda, Angola: A retrospective study

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