Ngianga‐bakwin Kandala
Biographic Data
| ID | 3995783 |
|---|---|
| NAME | Ngianga‐bakwin Kandala |
| GIVEN NAMES | Ngianga‐bakwin |
| FAMILY NAME | Kandala |
| SIGNATURE | KANDALA N B |
| AFFILIATIONS | University of the Witwatersrand |
| ORCID | 0000-0002-5654-5486 |
| VERIFIED | Yes |
| TOTAL WORKS | 19 |
| TOTAL CITATIONS | 3 |
| AUTHOR COUNT | 19 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2008 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 1 |
Predictors of pregnancy loss among urban and rural women aged 15 to 49 years in Pakistan
This study carries significant implications for alleviating the burden of pregnancy loss in Pakistan, in line with ENAP objectives. The separate analyses provide a novel perspective regarding the factors influencing pregnancy loss in urban and rural areas, allowing for targeted interventions
Determinants and spatial factors of anemia in women of reproductive age in Democratic Republic of Congo (drc)
The Bayesian Multilevel Spatial Ordinal Logistic Regression statistical model is able to adjust for risk and spatial factors of anemia in women of reproductive age in DRC highlighting the combined role of individual and environmental factors in the development of anemia in DRC
Bayesian Hierarchical Framework from Expert Elicitation in the South African Coal Mining Industry for Compliance Testing
Occupational exposure assessment is important in preventing occupational coal worker's diseases. Methods have been proposed to assess compliance with exposure limits which aim to protect workers from developing diseases. A Bayesian framework with informative prior distribution obtained from historical or expert judgements has been highly recommended for compliance testing. The compliance testing is assessed against the occupational exposure limit…
Geo-Climatic Factors of Malaria Morbidity in the Democratic Republic of Congo from 2001 to 2019
Background: Environmentally related morbidity and mortality still remain high worldwide, although they have decreased significantly in recent decades. This study aims to forecast malaria epidemics taking into account climatic and spatio-temporal variations and therefore identify geo-climatic factors predictive of malaria prevalence from 2001 to 2019 in the Democratic Republic of Congo. Methods: This is a retrospective longitudinal ecological stud…
Forecasting Malaria Morbidity to 2036 Based on Geo-Climatic Factors in the Democratic Republic of Congo
The stochastic trends in our time series observed in this study suggest an exponential increase in epidemic waves over the next 200 months of the study. The increase in new malaria cases is statistically related to population density, average number of rainy days, average wind speed, and unstable and intermediate epidemiological facies. Therefore, the results of this research should provide relevant information for the Congolese government to res…
Bayesian Hierarchical Modelling of Historical Data of the South African Coal Mining Industry for Compliance Testing
Bayesian hierarchical framework for exposure data compliance testing is highly recommended in occupational hygiene. However, it has not been used for coal dust exposure compliance testing in South Africa (SA). The Bayesian analysis incorporates prior information, which increases solid decision making regarding risk management. This study compared the posterior 95th percentile (P95) of the Bayesian non-informative and informative prior from histor…
Analysing Normative Influences on the Prevalence of Female Genital Mutilation/Cutting among 0–14 Years Old Girls in Senegal
Background: Female genital mutilation/cutting (FGM/C) is a harmful traditional practice affecting the health and rights of women and girls. This has raised global attention on the implementation of strategies to eliminate the practice in conformity with the Sustainable Development Goals (SDGs). A recent study on the trends of FGM/C among Senegalese women (aged 15–49) which examined how individual- and community-level factors affected the practice…
Mapping the Burden of Hypertension in South Africa
This study investigates the provincial variation in hypertension prevalence in South Africa in 2012 and 2016, adjusting for individual level demographic, behavioural and socio-economic variables, while allowing for spatial autocorrelation and adjusting simultaneously for the hierarchical data structure and risk factors. Data were analysed from participants aged ≥15 years from the South African National Health and Nutrition Examination Survey (SAN…
Hiv Epidemic Heterogeneity in Zimbabwe
Zimbabwe has one of the worst HIV epidemics in the world. This study investigated data from two successive Zimbabwe Demographic and Health Surveys (ZDHS) conducted in 2005–06 and 2010–11. A random representative sample of 30,000 men aged 15–59 and women aged 15–49 was selected from the two surveys. The HIV prevalence was mapped with a flexible, coherent regression framework using a geo-additive semi-parametric mixed model. HIV indicator prevalenc…
Geographic Variations in Cardiometabolic Risk Factors in Luxembourg
Cardiovascular disease (CVD) and associated behavioural and metabolic risk factors constitute a major public health concern at a global level. Many reports worldwide have documented different risk profiles for populations with demographic variations. The objective of this study was to examine geographic variations in the top leading cardio metabolic and behavioural risk factors in Luxembourg, in order to provide an overall picture of CVD burden a…
Environmental predictors of stunting among children under-five in Somalia
Stunting in Somalia is spatially and temporally heterogeneous. Rainfall and vegetation are major drivers of these variations. The use of environmental covariates for forecasting of stunting is a potentially useful and affordable tool for planning interventions to reduce the high burden of malnutrition in Somalia
Disparities in Modern Contraception Use Among Women in the Democratic Republic of Congo
This study investigates inequalities at the province level of the use of modern contraception and the proportion of short birth intervals among women in the DRC using data from the 2007 Demographic and Health Survey. Logistic regression and Bayesian geo-additive models were used. The posterior odds ratio and the associated 95% credible interval (95% CI) were estimated using Markov Chain Monte Carlo (MCMC) techniques. Posterior spatial effects wer…
Household food (in)security and nutritional status of urban poor children aged 6 to 23 months in Kenya
Our results shed light on the joint effect of food security and wealth status on stunting. Study findings underscore the need for social protection policies to reduce the high rates of child malnutrition in the urban informal settlements
Predictors of the risk of malnutrition among children under the age of 5 years in Somalia
Objective To investigate the predictors of wasting, stunting and low mid-upper arm circumference among children aged 6–59 months in Somalia using data from household cross-sectional surveys from 2007 to 2010 in order to help inform better targeting of nutritional interventions. Design Cross-sectional nutritional assessment surveys using structured interviews were conducted among communities in Somalia each year from 2007 to 2010. A two-stage clus…
Contextual socioeconomic factors associated with childhood mortality in Nigeria
BACKGROUND: Childhood mortality is a well-known public health issue, particularly in the low and middle income countries. The overarching aim of this study was to examine whether neighbourhood socioeconomic disadvantage is associated with childhood mortality beyond individual-level measures of socioeconomic status in Nigeria. METHODS: Multilevel logistic regression models were applied to data on 31 482 under-five children whether alive or dead (l…
Child mortality in the Democratic Republic of Congo
This study reveals clear geographic patterns in rates of U5M in the DRC and shows the potential role of individual child, household and environmental factors, which are unexplained by the ongoing conflict. The displacement of mothers to safer areas may explain the lower U5MR observed at the epicentre of the conflict in North Kivu, compared with rates in conflict-free areas. Overall, the U5M maps point to a lack of progress towards the Millennium …
Malnutrition among children under the age of five in the Democratic Republic of Congo (DRC)
Childhood malnutrition is spatially structured and rates remain very high in the provinces that rely on the mining industry and comparable to the level seen in Eastern provinces under conflicts. Even in provinces such as Bas-Congo that produce foods, childhood malnutrition is higher probably because of the economic decision to sell more than the population consumes. Improving maternal and child nutritional status is a prerequisite for achieving M…
Diarrhoea, acute respiratory infection, and fever among children in the Democratic Republic of Congo
Geo‐additive models of childhood undernutrition in three sub‐Saharan African countries
We investigate the geographical and socioeconomic determinants of childhood undernutrition in Malawi, Tanzania and Zambia, three neighbouring countries in southern Africa, using the 1992 Demographic and Health Surveys. In particular, we estimate models of undernutrition jointly for the three countries to explore regional patterns of undernutrition that transcend boundaries, while allowing for country‐specific interactions. We use geo‐additive reg…
Geo‐additive models of childhood undernutrition in three sub‐Saharan African countries
We investigate the geographical and socioeconomic determinants of childhood undernutrition in Malawi, Tanzania and Zambia, three neighbouring countries in southern Africa, using the 1992 Demographic and Health Surveys. In particular, we estimate models of undernutrition jointly for the three countries to explore regional patterns of undernutrition that transcend boundaries, while allowing for country‐specific interactions. We use geo‐additive reg…
Diarrhoea, acute respiratory infection, and fever among children in the Democratic Republic of Congo
Geo‐additive models of childhood undernutrition in three sub‐Saharan African countries
We investigate the geographical and socioeconomic determinants of childhood undernutrition in Malawi, Tanzania and Zambia, three neighbouring countries in southern Africa, using the 1992 Demographic and Health Surveys. In particular, we estimate models of undernutrition jointly for the three countries to explore regional patterns of undernutrition that transcend boundaries, while allowing for country‐specific interactions. We use geo‐additive reg…
Diarrhoea, acute respiratory infection, and fever among children in the Democratic Republic of Congo
Malnutrition among children under the age of five in the Democratic Republic of Congo (DRC)
Childhood malnutrition is spatially structured and rates remain very high in the provinces that rely on the mining industry and comparable to the level seen in Eastern provinces under conflicts. Even in provinces such as Bas-Congo that produce foods, childhood malnutrition is higher probably because of the economic decision to sell more than the population consumes. Improving maternal and child nutritional status is a prerequisite for achieving M…
Child mortality in the Democratic Republic of Congo
This study reveals clear geographic patterns in rates of U5M in the DRC and shows the potential role of individual child, household and environmental factors, which are unexplained by the ongoing conflict. The displacement of mothers to safer areas may explain the lower U5MR observed at the epicentre of the conflict in North Kivu, compared with rates in conflict-free areas. Overall, the U5M maps point to a lack of progress towards the Millennium …
Disparities in Modern Contraception Use Among Women in the Democratic Republic of Congo
This study investigates inequalities at the province level of the use of modern contraception and the proportion of short birth intervals among women in the DRC using data from the 2007 Demographic and Health Survey. Logistic regression and Bayesian geo-additive models were used. The posterior odds ratio and the associated 95% credible interval (95% CI) were estimated using Markov Chain Monte Carlo (MCMC) techniques. Posterior spatial effects wer…
Household food (in)security and nutritional status of urban poor children aged 6 to 23 months in Kenya
Our results shed light on the joint effect of food security and wealth status on stunting. Study findings underscore the need for social protection policies to reduce the high rates of child malnutrition in the urban informal settlements
Predictors of the risk of malnutrition among children under the age of 5 years in Somalia
Objective To investigate the predictors of wasting, stunting and low mid-upper arm circumference among children aged 6–59 months in Somalia using data from household cross-sectional surveys from 2007 to 2010 in order to help inform better targeting of nutritional interventions. Design Cross-sectional nutritional assessment surveys using structured interviews were conducted among communities in Somalia each year from 2007 to 2010. A two-stage clus…
Contextual socioeconomic factors associated with childhood mortality in Nigeria
BACKGROUND: Childhood mortality is a well-known public health issue, particularly in the low and middle income countries. The overarching aim of this study was to examine whether neighbourhood socioeconomic disadvantage is associated with childhood mortality beyond individual-level measures of socioeconomic status in Nigeria. METHODS: Multilevel logistic regression models were applied to data on 31 482 under-five children whether alive or dead (l…
Environmental predictors of stunting among children under-five in Somalia
Stunting in Somalia is spatially and temporally heterogeneous. Rainfall and vegetation are major drivers of these variations. The use of environmental covariates for forecasting of stunting is a potentially useful and affordable tool for planning interventions to reduce the high burden of malnutrition in Somalia
Geographic Variations in Cardiometabolic Risk Factors in Luxembourg
Cardiovascular disease (CVD) and associated behavioural and metabolic risk factors constitute a major public health concern at a global level. Many reports worldwide have documented different risk profiles for populations with demographic variations. The objective of this study was to examine geographic variations in the top leading cardio metabolic and behavioural risk factors in Luxembourg, in order to provide an overall picture of CVD burden a…
Hiv Epidemic Heterogeneity in Zimbabwe
Zimbabwe has one of the worst HIV epidemics in the world. This study investigated data from two successive Zimbabwe Demographic and Health Surveys (ZDHS) conducted in 2005–06 and 2010–11. A random representative sample of 30,000 men aged 15–59 and women aged 15–49 was selected from the two surveys. The HIV prevalence was mapped with a flexible, coherent regression framework using a geo-additive semi-parametric mixed model. HIV indicator prevalenc…
Analysing Normative Influences on the Prevalence of Female Genital Mutilation/Cutting among 0–14 Years Old Girls in Senegal
Background: Female genital mutilation/cutting (FGM/C) is a harmful traditional practice affecting the health and rights of women and girls. This has raised global attention on the implementation of strategies to eliminate the practice in conformity with the Sustainable Development Goals (SDGs). A recent study on the trends of FGM/C among Senegalese women (aged 15–49) which examined how individual- and community-level factors affected the practice…
Mapping the Burden of Hypertension in South Africa
This study investigates the provincial variation in hypertension prevalence in South Africa in 2012 and 2016, adjusting for individual level demographic, behavioural and socio-economic variables, while allowing for spatial autocorrelation and adjusting simultaneously for the hierarchical data structure and risk factors. Data were analysed from participants aged ≥15 years from the South African National Health and Nutrition Examination Survey (SAN…
Geo-Climatic Factors of Malaria Morbidity in the Democratic Republic of Congo from 2001 to 2019
Background: Environmentally related morbidity and mortality still remain high worldwide, although they have decreased significantly in recent decades. This study aims to forecast malaria epidemics taking into account climatic and spatio-temporal variations and therefore identify geo-climatic factors predictive of malaria prevalence from 2001 to 2019 in the Democratic Republic of Congo. Methods: This is a retrospective longitudinal ecological stud…
Forecasting Malaria Morbidity to 2036 Based on Geo-Climatic Factors in the Democratic Republic of Congo
The stochastic trends in our time series observed in this study suggest an exponential increase in epidemic waves over the next 200 months of the study. The increase in new malaria cases is statistically related to population density, average number of rainy days, average wind speed, and unstable and intermediate epidemiological facies. Therefore, the results of this research should provide relevant information for the Congolese government to res…
Bayesian Hierarchical Modelling of Historical Data of the South African Coal Mining Industry for Compliance Testing
Bayesian hierarchical framework for exposure data compliance testing is highly recommended in occupational hygiene. However, it has not been used for coal dust exposure compliance testing in South Africa (SA). The Bayesian analysis incorporates prior information, which increases solid decision making regarding risk management. This study compared the posterior 95th percentile (P95) of the Bayesian non-informative and informative prior from histor…
Bayesian Hierarchical Framework from Expert Elicitation in the South African Coal Mining Industry for Compliance Testing
Occupational exposure assessment is important in preventing occupational coal worker's diseases. Methods have been proposed to assess compliance with exposure limits which aim to protect workers from developing diseases. A Bayesian framework with informative prior distribution obtained from historical or expert judgements has been highly recommended for compliance testing. The compliance testing is assessed against the occupational exposure limit…
Determinants and spatial factors of anemia in women of reproductive age in Democratic Republic of Congo (drc)
The Bayesian Multilevel Spatial Ordinal Logistic Regression statistical model is able to adjust for risk and spatial factors of anemia in women of reproductive age in DRC highlighting the combined role of individual and environmental factors in the development of anemia in DRC
Predictors of pregnancy loss among urban and rural women aged 15 to 49 years in Pakistan
This study carries significant implications for alleviating the burden of pregnancy loss in Pakistan, in line with ENAP objectives. The separate analyses provide a novel perspective regarding the factors influencing pregnancy loss in urban and rural areas, allowing for targeted interventions
Demography (15 works) · Medicine (15 works) · Environmental health (14 works) · Demography (12 works) · Geography (10 works) · Child Nutrition and Water Access (9 works) · Public health (9 works) · Population (7 works) · Biostatistics (5 works) · Food Security and Health in Diverse Populations (5 works)