Efficacy of Geophysical Techniques for Groundwater Exploration in the Volta Basin, Northern Region of Ghana

Abstract Groundwater, traditionally extracted from hand-dug wells and boreholes is the main drinking water source in the Northern Region of Ghana. Many boreholes have been constructed in the region to increase accessibility to potable water mainly as part of rural water supply projects where borehole siting has to be relatively cheaper.  These projects have resulted in low success rates of borehole drilling because of the application of inefficient and simple geophysical techniques supposed to be cheaper. Field surveys were conducted with the Electrical Resistivity Imaging (ERI) technique, Electrokinetic System (EKS) sounding technique and Radon (222Rn) technique with the objectives of determining the best geophysical methods for borehole siting and its efficiency in the Volta Basin (VB) in the Northern Region of Ghana. The surveys were conducted at stations of existing dry and positive boreholes. Results show that the three geophysical techniques are efficient to identify groundwater accumulation zones. The ERI, EKS and 222Rn are efficient to identify discontinuities, calculate hydraulic conductivity of discontinuities and identify areas of water circulation respectively. It is recommended that the ERI be used to obtain discontinuities and weak zones for drilling on rural water supply projects in the VB. The EKS and 222Rn should be conducted to evaluate these features when high yield boreholes are required.   Keywords: Geophysical Techniques, Volta Basin, Borehole Drilling, Success Rate

Assessment of Groundwater Quality and Health Risk of Heavy Metals: A study from the Tarkwa Mining Area, Ghana

This study seeks to evaluate the hydrogeochemical characteristics of water in the Tarkwa mining area using the Piper and Chadha plots and to carry out a health risk assessment using the US Environmental Protection Agency (USEPA) health risk assessment model. A total of 39 groundwater sample points were used for this study. Results from the Piper and Chadha diagrams show that the dominant water types in the study area are Ca-HCO3 and Mixed Ca-Mg-Cl water types which indicates that groundwater in the area can be classified as fresh water. The hazard quotient (HQ) value for heavy metals estimated, suggested an acceptable level of noncarcinogenic inimical health risk. In relation to the HQ value, the Hazard Index (HQ) calculated was less than 1 suggesting that inhabitants will not be exposed to a potential health risk for the injection of heavy metals. Carcinogenic risk estimated for As (1.80×10-4) was higher than the acceptable risk. The carcinogenic risk estimated therefore indicated that, drinking of groundwater over a long period will increase the probability of cancer. It can be concluded that currently the groundwater in the Tarkwa area is safe for domestic purposes.   Keywords: Hydrochemical Characteristics, Human Risk Assessment, Tarkwa Mining Are

Borehole Rehabilitation: A Case Study in the Dunkwa Mining Town

Rehabilitation works were carried out on boreholes in the Dunkwa Mining town in the Central Region of Ghana. These works were carried out because the boreholes had lost their original yields due to clogging, corrosion and encrustation and had been abandoned for a long time. The cost of drilling a new well and assessing the productivity of the well is $4,500 which is more expensive that carrying out rehabilitation works which is cheaper, about$800. Also, the initial yields of the boreholes were very high according to the feasibility report which is not a common characteristic of the rocks in the area. Camera inspection followed by rehabilitation, pre and post pumping tests were carried out to assess whether there has been an improvement in their yield after the exercise and that the yield obtained will be adequate for a water supply design. Results show that all the boreholes had an improvement in their yields (57.19 - 259.80 %) after the rehabilitation. It can therefore be concluded that rehabilitation is effective in restoring boreholes to their original yields. Organisations drilling boreholes to communities can take advantage of rehabilitation of the existing boreholes located in the communities which are high yielding, thereby reducing project implementation cost. Keywords: Borehole Rehabilitation, Borehole Yields, Borehole Camera Inspection, Pumping Tes

Socio-economic and demographic predictors of unmet need for contraception among young women in sub-Saharan Africa: evidence from cross-sectional surveys.

IntroductionGlobally, sub-Saharan Africa (SSA) bears the highest proportion of women with unmet need for contraception as nearly 25% of women of reproductive age in the sub-region have unmet need for contraception. Unmet need for contraception is predominant among young women. We examined the association between socio-economic and demographic factors and unmet need for contraception among young women in SSA.MethodsData for this study obtained from current Demographic and Health Surveys (DHS) conducted between January 1, 2010 and December 31, 2018 in 30 sub-Saharan African countries. The sample size consisted of young women (aged 15-24), who were either married or cohabiting and had complete cases on all the variables of interest (N = 59,864). Both bivariate and multivariable binary logistic regression analyses were performed using STATA version 14.0.ResultsThe overall prevalence of unmet need for contraception among young women was 26.90% [95% CI: 23.82-29.921], ranging from 11.30% [95% CI: 5.1-17.49] in Zimbabwe to 46.7% [95% CI: 36.92-56.48] in Comoros. Results on socio-economic status and unmet need for contraception showed that young women who had primary [aOR = 1.18; CI = 1.12-1.25, p ConclusionOur study has demonstrated that unmet need for contraception is relatively high among young women in SSA and this is associated with socio-economic status. Age, marital status, parity, occupation, sex of household head, and access to mass media (newspaper) are also associated with unmet need for contraception. It is therefore, prudent that organisations such as UNICEF and UNFPA and the Bill & Melinda Gates Foundation who have implemented policies and programmes on contraception meant towards reducing unmet need for contraception among women take these factors into consideration when designing interventions in sub-Saharan African countries to address the problem of high unmet need for contraception among young women

Does knowledge of pregnancy complications influence health facility delivery? Analysis of 2014 Bangladesh Demographic and Health Survey.

INTRODUCTION:Only thirty-seven percent (37%) of deliveries occur in health facilities in Bangladesh despite the enormous benefits of health facility delivery. We investigated women's recall of receiving counseling on pregnancy complications and how it affects health facility delivery in Bangladesh. MATERIALS AND METHODS:Data from the 2014 Bangladesh Demographic and Health Survey was used for the study. After calculating the proportion of women who were informed about pregnancy complications during their last Antenatal Care (ANC) and the number of them who delivered in health facilities, Binary Logistic Regression was utilized in investigating chances of giving birth in health facilities among women who recalled they were told about pregnancy complications and those who were not told. The models were considered significant at 95%. RESULTS:A little above half of the women who were told about pregnancy complications during ANC delivered in health facilities (53.3%) and 43.6% of those who were not told delivered in health facilities. The findings revealed that women who were told about pregnancy complications during ANC were more likely to deliver at the health facility compared to those who were not told [COR = 1.56, CI = 1.31-1.87], and this persisted after controlling for the effect of covariates [AOR = 1.44, CI = 1.21-1.71]. CONCLUSION:This study has stressed the importance of telling women about pregnancy complications during ANC by revealing that telling women about pregnancy complications during ANC is likely to result in health facility delivery. Health workers should intensify health education on pregnancy complications during ANC and motivate women to deliver in health facilities

Impact of COVID-19 on maternal healthcare in Africa and the way forward.

Background The impact of COVID-19 is weighing heavily on many African countries. As of November 14th 2021, 6,109,722 cases had been recorded with 151,173 deaths and 2.5% case fatality rate. Studies reveal substantial morbidity and socioeconomic impacts when accessing quality maternal healthcare including fear of infection and the containment measures in place, including social distancing and community containment. The pandemic has put additional strain on healthcare systems that are overburdened and under-resourced even in normal times and has exposed the vulnerabilities of high-risk population groups in addressing critical healthcare concerns. This study presents a mini review of how COVID-19 has disrupted maternal healthcare in Africa, and it further proposes ways to improve the situation. Main body COVID-19 has disrupted antenatal, skilled birth, and postnatal family planning services. Women and girls are vulnerable to the impact of COVID-19 on several fronts and represent a group whose needs including antenatal, skilled birth, and postnatal family planning services have been disrupted, leading to unmet needs for contraception and an increase in unintended pregnancies. Restricted travel due to the fear and anxiety associated with contracting COVID-19 has resulted in delays in accessing prompt skilled care and essential healthcare services such as pregnancy care, immunisation, and nutritional supplementation. Misconceptions relating to COVID-19 have prompted concerns and created distrust in the safety of the healthcare system. Innovative measures are required to address these obstacles and ensure women are not denied access to available, accessible, acceptable, and quality maternal healthcare services in spite of COVID-19. Conclusions In the immediate term while physical distancing measures remain in force, deliberate effort must be made to provide evidence-based guidelines, good practice and expert advice that addresses the unique sexual and reproductive health context of African countries. Efforts to train and motivate healthcare providers to adopt online, remote approaches such as use of telemedicine, and expand the involvement of frontline maternal healthcare providers to deliver information on the availability of services through phone-based referral networks, culturally appropriate social media, community radio and folklore messaging strategies are critical to mobilise and secure community confidence in the safety of sexual and reproductive health and maternal care services

Overweight and obesity among women of reproductive age in Mali: what are the determinants?

Background Existing evidence suggests that there has been a surge of overweight and obesity in low- and middle-income countries around the world. In this study we investigated the prevalence and factors associated with overweight and obesity among women in Mali. Methods We conducted the study among 5198 women using the 2018 Mali Demographic and Health Survey data. We used binary logistic regression for the analysis and pegged statistical significance at p<0.05. Results The prevalence of overweight and obesity was 26.9%. The likelihood of overweight and obesity was high among women 40–44 y of age (adjusted odds ratio [AOR] 5.94 [confidence interval {CI} 4.10 to 8.60]), those who were widowed/divorced/separated (AOR 1.59 [CI 1.04 to 2.43]), those with secondary education (AOR 1.41 [CI 1.13 to 1.75]), richest women (AOR 3.61 [CI 2.63 to 4.95]), those who watched television at least once a week (AOR 1.28 [CI 1.07 to 1.52]) and those who lived in the Kidal region (AOR 10.71 [CI 7.05 to 16.25]). Conversely, the likelihood of overweight and obesity was low among women who belonged to other religions compared with Muslims (AOR 0.63 [CI 0.43 to 0.92]). Conclusions This study found a predominance of overweight and obesity among women in Mali. The study showed that age, marital status, education, religion, region of residence, wealth status and frequency of watching television are associated with overweight and obesity among women in Mali. It is therefore critical for public health promotion programs in Mali to sensitize people to the negative effects associated with overweight and obesity. This implies that policies aimed at controlling overweight and obesity in Mali must take these factors into consideration

Unequal access and use of contraceptives among parenting adolescent girls in sub-Saharan Africa: a cross-sectional analysis of demographic and health surveys.

Objective We examined the divergent patterns, prevalence and correlates of contraceptive use among parenting adolescents in sub-Saharan Africa using the Demographic and Health Survey datasets of 17 countries. Design We included a weighted sample of 9488 parenting adolescent girls in our analysis. Current contraceptive use was defined as the use of any methods to delay or avoid getting pregnant at the survey time. We reported the prevalence of any contraceptive use for all countries and used multilevel binary logistic regression analysis to examine the individual and contextual factors associated with contraceptive use. Outcome measures Contraceptive use. Results We found an overall contraceptive prevalence of 27.12% (CI 27.23% to 28.03%) among parenting adolescent girls in sub-Saharan Africa, ranging from 70.0% (CI 61.76% to 77.16%) in South Africa to only 5.10% (CI 3.04% to 8.45%) in Chad. The prevalence of contraceptive use was lowest in West andCentral Africa, with most countries having less than 20% prevalence. Increasing age (adjusted OR (aOR)=1.46, 95% CI 1.28 to 1.65), being married (aOR=1.63, 95% CI 1.43 to 1.87), having a secondary or higher level of education (aOR=2.72, 95% CI 2.25 to 2.3.27), and media exposure (aOR=1.21, 95% CI 1.08 to 1.36), were associated with higher odds of contraceptive use in the pooled data but preference for a higher number of children (more than five children) (aOR=0.61, 95% CI 0.52 to 0.72) was related to lower likelihood of use. Significant heterogeneity was observed in the country-level disaggregated results. Conclusion African countries differ widely when it comes to contraceptive use among parenting adolescent girls, with only three countries having a relatively high prevalence of use. The governments of countries in sub-Saharan Africa, particularly those in West and Central Africa, should invest in expanding access to contraceptives for adolescent mothers to prevent repeat pregnancy and improve the overall well-being of parenting adolescent girls

Prenatal care coverage and correlates of HIV testing in sub-Saharan Africa: Insight from demographic and health surveys of 16 countries.

BackgroundPrenatal screening of pregnant women for HIV is central to eliminating mother-to-child-transmission (MTCT) of HIV. While some countries in sub-Saharan Africa (SSA) have scaled up their prevention of MTCT programmes, ensuring a near-universal prenatal care HIV testing, and recording a significant reduction in new infection among children, several others have poor outcomes due to inadequate testing. We conducted a multi-country analysis of demographic and health surveys (DHS) to assess the coverage of HIV testing during pregnancy and also examine the factors associated with uptake.MethodsWe analysed data of 64,933 women from 16 SSA countries with recent DHS datasets (2015-2018) using Stata version 16. Adjusted and unadjusted logistic regression models were used to examine correlates of prenatal care uptake of HIV testing. Statistical significance was set at pResultsProgress in scaling up of prenatal care HIV testing was uneven across SSA, with only 6.1% of pregnant women tested in Chad compared to 98.1% in Rwanda. While inequality in access to HIV testing among pregnant women is pervasive in most SSA countries and particularly in West and Central Africa sub-regions, a few countries, including Rwanda, South Africa, Zimbabwe, Malawi and Zambia have managed to eliminate wealth and rural-urban inequalities in access to prenatal care HIV testing.ConclusionOur findings highlight the between countries and sub-regional disparities in prenatal care uptake of HIV testing in SSA. Even though no country has universal coverage of prenatal care HIV testing, East and Southern African regions have made remarkable progress towards ensuring no pregnant woman is left untested. However, the West and Central Africa regions had low coverage of prenatal care testing, with the rich and well educated having better access to testing, while the poor rarely tested. Addressing the inequitable access and coverage of HIV testing among pregnant women is vital in these sub-regions

Determinants of early initiation of breastfeeding in Ghana: a population-based cross-sectional study using the 2014 Demographic and Health Survey data.

BACKGROUND:The World Health Organisation (WHO) recommends that breastfeeding should be initiated within the first hour of delivery followed by exclusive breastfeeding up to 6 months. This study examined the determinants of early initiation of breastfeeding in Ghana using data from the 2014 Ghana Demographic and Health Survey. METHODS:A sample size of 4219 was used for the study. Descriptive statistics was conducted to ascertain the proportion of children who had early initiation of breastfeeding after which binary logistic regression analysis was carried out. Results were presented using frequencies, percentages, unadjusted and adjusted odds ratios. Statistical significance was pegged at p<0.05. RESULTS:Children of first birth order [AOR = 0.71, CI = 0.61-0.84], those who were delivered by non-professionals [AOR = 0.51, CI = 0.30-0.88] and those whose mothers were Traditionalists [AOR = 0.65, CI = 0.46-0.92] and Mole-Dagbanis [AOR = 0.69, CI = 0.54-0.89] were less likely to go through early initiation of breastfeeding compared to those of 2-4 birth order, those who were delivered by health professionals, those whose mothers were Christians and Akan, respectively. Conversely, children born to mothers who read newspaper/magazine at least once a week were more likely to go through early initiation of breastfeeding, compared to those who never read newspaper/magazine [AOR = 1.40, CI = 1.01-1.95]. Children born to mothers who watched television less than once a week were more likely to go through early initiation of breastfeeding compared to those who watched television at least once a week [AOR = 1.40, CI = 1.01-1.95]. Finally, women from the Northern [AOR = 2.40, CI = [1.77-3.26] and Upper East regions [AOR = 2.57, CI = [1.86-3.56] practiced early initiation of breastfeeding compared to those from the Ashanti region. CONCLUSIONS:Empowering healthcare providers to be consistent in early breastfeeding initiation advocacy and effective community engagement on the need to embrace and practice early initiation of breastfeeding can improve the situation