1
|
Ssemasaazi AJ, Kalyesubula R, Manabe YC, Mbabazi P, Naikooba S, Ssekindi F, Nasuuna E, Kibwika PB, Castelnuovo B. Higher prevalence of kidney function impairment among older people living with HIV in Uganda. RESEARCH SQUARE 2024:rs.3.rs-4364155. [PMID: 38798422 PMCID: PMC11118683 DOI: 10.21203/rs.3.rs-4364155/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Background People living with HIV (PLWH) are at risk of kidney function impairment due to HIV-related inflammation, antiretroviral therapy (ART), diabetes mellitus, and hypertension. Older persons may experience a higher burden of chronic kidney disease (CKD) as kidney function declines with increasing age. There is a paucity of data comparing the prevalence of kidney function impairment in older PLWH to that in HIV-uninfected people in sub-Saharan Africa. Methods We conducted a cross-sectional study among people aged ≥ 60 years living with and without HIV in Kampala, Uganda who were matched 1:1 by community location. We collected data on sociodemographics, comorbidities, and HIV-related clinical characteristics. We defined kidney function impairment as an estimated glomerular filtration rate(eGFR) < 60mls/min/1.73m2 with or without proteinuria. We constructed multivariable logistic regression models to study associations between participant characteristics and kidney function impairment. Results We enrolled 278 people (median age 66 years); 50% were PLWH, and 51.8% were female. Overall, the prevalence of kidney function impairment was 23.0% (95% CI:18.4%-28.4%); 33.1% (95% CI: 25.7%-41.4%) versus 12.9% (95% CI: 8.3%-19.7%) among people living with and without HIV (p-value < 0.01). The prevalence of proteinuria among PLWH versus people without HIV was 43.9% (95% CI:35.8%-52.3%) versus 19.4% (95% CI:13.6%-26.9%) p-value < 0.01. Living with HIV (OR = 3.89(95% CI: 2.04-7.41), p-value < 0.01), older age (OR = 1.13, (95% CI:1.07-1.20), p-value < 0.01), female sex (OR = 1.95, (95% CI:1.06-3.62), p-value = 0.03) and a prior diagnosis of hypertension (OR = 2.19(95% CI:1.02-4.67), p-value = 0.04) were significantly associated with kidney function impairment. Conclusions HIV infection is strongly associated with kidney function impairment among older PLWH. Prioritizing routine measurements of kidney function and proteinuria in older PLWH will enable early detection and institution of measures to reduce the progression of kidney disease.
Collapse
|
2
|
Fiseha T, Ekong NE, Osborne NJ. Chronic kidney disease of unknown aetiology in Africa: A review of the literature. Nephrology (Carlton) 2024; 29:177-187. [PMID: 38122827 DOI: 10.1111/nep.14264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/25/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023]
Abstract
During the last two decades, an epidemic of a severe form of chronic kidney disease (CKD) unrelated to traditional risk factors (diabetes and hypertension) has been recognized in low- to middle-income countries. CKD of unknown aetiology (CKDu) mainly affects young working-age adults, and has become as an important and devastating public health issue. CKDu is a multifactorial disease with associated genetic and environmental risk factors. This review summarizes the current epidemiological evidence on the burden of CKDu and its probable environmental risk factors contributing to CKD in Africa. PubMed/Medline and the African Journals Online databases were searched to identify relevant population-based studies published in the last two decades. In the general population, the burden of CKD attributable to CKDu varied from 19.4% to 79%. Epidemiologic studies have established that environmental factors, including genetics, infectious agents, rural residence, low socioeconomic status, malnutrition, agricultural practise and exposure to agrochemicals, heavy metals, use of traditional herbs, and contaminated water sources or food contribute to the burden of CKD in the region. There is a great need for epidemiological studies exploring the true burden of CKDu and unique geographical distribution, and the role of environmental factors in the development of CKD/CKDu.
Collapse
Affiliation(s)
- Temesgen Fiseha
- Department of Clinical Laboratory Science, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | | | - Nicholas J Osborne
- Faculty of Medicine, School of Public Health, The University of Queensland, Brisbane, Queensland, Australia
- School of Population Health, University of New South Wales, Sydney, New South Wales, Australia
- European Centre for Environment and Human Health (ECEHH), University of Exeter Medical School, Knowledge Spa, Royal Cornwall Hospital, Truro, Cornwall, UK
| |
Collapse
|
3
|
Mukunya D, Oguttu F, Nambozo B, Nantale R, Makoko BT, Napyo A, Tumuhamye J, Wani S, Auma P, Atim K, Nahurira D, Okello D, Wamulugwa J, Ssegawa L, Wandabwa J, Kiguli S, Chebet M, Musaba MW. Decreased renal function among children born to women with obstructed labour in Eastern Uganda: a cohort study. BMC Nephrol 2024; 25:116. [PMID: 38549078 PMCID: PMC10976667 DOI: 10.1186/s12882-024-03552-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 03/20/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND Over two million children and adolescents suffer from chronic kidney disease globally. Early childhood insults such as birth asphyxia could be risk factors for chronic kidney disease in later life. Our study aimed to assess renal function among children aged two to four years, born to women with obstructed labour. METHODS We followed up 144 children aged two to four years, born to women with obstructed labor at Mbale regional referral hospital in Eastern Uganda. We used serum creatinine to calculate estimated glomerular filtration rate (eGFR) using the Schwartz formula. We defined decreased renal function as eGFR less than 90 ml/min/1.73m2. RESULTS The mean age of the children was 2.8 years, standard deviation (SD) of 0.4 years. Majority of the children were male (96/144: 66.7%). The mean umbilical lactate level at birth among the study participants was 8.9 mmol/L with a standard deviation (SD) of 5.0. eGFR of the children ranged from 55 to 163 ml/min/1.73m2, mean 85.8 ± SD 15.9. Nearly one third of the children (45/144) had normal eGFR (> 90 ml/Min/1.73m2), two thirds (97/144) had a mild decrease of eGFR (60-89 ml/Min/1.73m2), and only two children had a moderate decrease of eGFR (< 60 ml/Min/1.73m2). Overall incidence of reduced eGFR was 68.8% [(99/144): 95% CI (60.6 to 75.9)]. CONCLUSION We observed a high incidence of reduced renal function among children born to women with obstructed labour. We recommend routine follow up of children born to women with obstructed labour and add our voices to those calling for improved intra-partum and peripartum care.
Collapse
Affiliation(s)
- David Mukunya
- Department of Community and Public Health, Busitema University, Mbale, Uganda
- Department of Research, Nikao Medical Center, Kampala, Uganda
| | - Faith Oguttu
- Department of Community and Public Health, Busitema University, Mbale, Uganda.
| | - Brendah Nambozo
- Department of Community and Public Health, Busitema University, Mbale, Uganda
| | - Ritah Nantale
- Department of Obstetrics and Gynecology, Busitema University, Mbale, Uganda
- Busitema University Centre of Excellency for Maternal and Child Health, Mbale, Uganda
| | - Brian Tonny Makoko
- Department of Community and Public Health, Busitema University, Mbale, Uganda
| | - Agnes Napyo
- Department of Community and Public Health, Busitema University, Mbale, Uganda
| | | | - Solomon Wani
- Department of Community and Public Health, Busitema University, Mbale, Uganda
| | - Prossy Auma
- Mbale Regional Referral Hospital, Mbale, Uganda
| | - Ketty Atim
- Mbale Regional Referral Hospital, Mbale, Uganda
| | - Doreck Nahurira
- Department of Obstetrics and Gynecology, Busitema University, Mbale, Uganda
| | - Dedan Okello
- Department of Paediatrics and Child Health, Busitema University, Mbale, Uganda
| | | | - Lawrence Ssegawa
- Department of Research, Sanyu Africa Research Institute, Mbale, Uganda
| | - Julius Wandabwa
- Department of Obstetrics and Gynecology, Busitema University, Mbale, Uganda
| | - Sarah Kiguli
- Department of Paediatrics and Child Health, Makerere University, Kampala, Uganda
| | - Martin Chebet
- Department of Paediatrics and Child Health, Busitema University, Mbale, Uganda
- Department of Research, Sanyu Africa Research Institute, Mbale, Uganda
| | - Milton W Musaba
- Department of Obstetrics and Gynecology, Busitema University, Mbale, Uganda
- Busitema University Centre of Excellency for Maternal and Child Health, Mbale, Uganda
| |
Collapse
|
4
|
Kirya M, Bwayo D, Otim ME, Mutoo PB, Masaba JPM, Okibure A, Katuramu R. Prevalence of Biomarkers and Associated Factors for Chronic Kidney Disease in Adult Diabetic Out-patients in a Tertiary Hospital in Eastern Uganda - a Cross-sectional Study. RESEARCH SQUARE 2024:rs.3.rs-3992049. [PMID: 38496471 PMCID: PMC10942569 DOI: 10.21203/rs.3.rs-3992049/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Background Chronic kidney disease (CKD) is one of the most common complications of Diabetes Mellitus (DM). DM contributes to about 66% of CKD cases globally. CKiiiD results in increased morbidity and mortality and advanced stages often require renal replacement therapy that is unaffordable for the majority of the patients. Developing countries have scanty data regarding CKD burden in diabetic patients. OBJECTIVES This study aimed at determining the prevalence of biomarkers for CKD and associated factors among diabetic patients attending the adult diabetic clinic of Mbale Regional Referral Hospital (MRRH). Methods A cross-sectional study was conducted at the adult diabetic clinic of Mbale Regional Referral Hospital in Eastern Uganda. 374 adult diabetic patients who consented, were recruited and interviewed. A urine sample for Urine Albumin Creatinine Ratio (UACR) determination and a venous blood sample for measurement of serum creatinine were obtained from each participant. The estimated glomerular filtration rate (eGFR) was determined using the CKD-EPI equation and CKD was staged according to the Kidney Disease Improving Global Outcomes (KDIGO) systems. Results A total of 318 (85%) participants had an eGFR of ≤ 60mls/min/1.72m2, significant proteinuria, or both. 6.1% were aware. Age, Duration of DM, Hypertension, and Dyslipidemia were associated with CKD biomarkers. Conclusion There is a high prevalence of biomarkers for CKD among DM patients, the majority of them being undiagnosed. Over half of the DM patients had an eGFR consistent with advanced CKD. Strengthening routine screening for CKD biomarkers and enhancing the DM clinics with more diagnostic resources is recommended.
Collapse
|
5
|
Ogwang AJ, Murungi EB, Vallence N, Esther B. Lived Experiences of Patients on Hemodialysis Treatment at Kiruddu National Referral Hospital: A Phenomenological Study. Patient Relat Outcome Meas 2023; 14:393-408. [PMID: 38107024 PMCID: PMC10725628 DOI: 10.2147/prom.s431746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023] Open
Abstract
Background There is increasing number of patients undergoing hemodialysis globally. Patients on hemodialysis experience physical and emotional stress due to the changes brought by chronic kidney disease. Aim The study aimed at exploring the lived experiences of patients on hemodialysis treatment in Kiruddu National Referral Hospital. Methods The study employed a phenomenological design. Data was collected using audio tape recording of the interview from 9 participants selected through purposive sampling at Kiruddu National Referral Hospital. The thematic aspects of the lived experience were uncovered using Van Manen data analysis which included three approaches: the detailed or line-by-line approach, selective or highlighting approach and holistic approach. Results Six themes emerged during the analysis as hemodialysis prolongs survival; hemodialysis is indispensable, family financial support, physical limitations, emotional distress and adaptation. Conclusion It was concluded from the findings that the patients undergoing haemodialysis are facing a wide range of problems such as physical and emotional problems during the course of their treatment and think that haemodialysis is the only way of survival, and these problems need to be addressed. Understanding gained in this study can help nurses to utilize this information in improving the quality of nursing care and guide patients to provide positive reinforcement for their future living.
Collapse
Affiliation(s)
- Alobo Jennifer Ogwang
- Nursing Department, Mbarara University of Science and Technology, Mbarara City, Uganda
| | - Eric Baluku Murungi
- Nursing Department, Mbarara University of Science and Technology, Mbarara City, Uganda
| | - Niyonzima Vallence
- Nursing Department, Mbarara University of Science and Technology, Mbarara City, Uganda
| | - Beebwa Esther
- Nursing Department, Mbarara University of Science and Technology, Mbarara City, Uganda
| |
Collapse
|
6
|
Rage HI, Ers SA, Kahin AY, Elmi MM, Mohamed AA, Kumar Jha P. Causes of kidney failure among patients undergoing maintenance hemodialysis in Somalia: a multi-center study. BMC Nephrol 2023; 24:347. [PMID: 38012593 PMCID: PMC10683205 DOI: 10.1186/s12882-023-03402-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/20/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Kidney failure is one of the leading causes of morbidity and mortality worldwide. The incidence of kidney failure in Somalia has been increasing in recent years. There is no data available on the causes of chronic kidney disease (CKD) leading to kidney failure in Somalia. METHODS This is a multicentre, descriptive cross-sectional study designed to determine the aetiology of kidney failure among patients receiving haemodialysis in four major demographic areas of Somalia. The study was conducted over a one-year period, from June 2021 to June 2022. Participants were eligible for inclusion if they had been diagnosed with kidney failure, were on regular haemodialysis, and were over 18 years of age. RESULTS A total of 127 patients were evaluated, 84 (66.1%) were males and 43 (33.9%) were female. The mean age of kidney failure patients was 49.3 ± 12.2 years. They originated from various regions, 5.6% from the south, 29.9% from the north-eastern, and 64.5% from the northwest. The mean duration of haemodialysis was 4.4 ± 2.2 years. The most common cause of kidney failure in our study was hypertension (33.1%), followed by diabetes mellitus (27.6%), uncertain aetiology (24.4%), glomerulonephritis (7.1%), obstructive uropathy (3.8%), renovascular hypertension (1.6%), neurogenic bladder, polycystic kidney disease, congenital and hereditary diseases (0.8%). CONCLUSIONS Our study showed the leading cause of kidney failure among maintenance haemodialysis patients was hypertension, followed by diabetes mellitus. To reduce the burden of kidney failure in Somalia, primary prevention of hypertension and diabetes and early detection and prompt management of chronic kidney disease (CKD) in high-risk populations should be a fundamental focus.
Collapse
Affiliation(s)
| | - Suleyman A Ers
- Sheikh Khalifa Bin Zayed Al-Nahyan Hospital, Burao, Somaliland
| | - Abdirazak Y Kahin
- Department of Nephrology, Hargeisa Group hospital, Hargeisa, Somaliland
| | - Muraad M Elmi
- Department of Nephrology, Hargeisa Group hospital, Hargeisa, Somaliland
| | | | - Pranaw Kumar Jha
- Department of Nephrology, Medanta - The Medicity, Gurugram, Haryana, India
| |
Collapse
|
7
|
Sembajwe FL, Namaganda A, Nfambi J, Muwonge H, Katamba G, Nakato R, Nabachenje P, Kawala Kagoya E, Namubamba A, Kiggundu D, Bitek B, Kalyesubula R, Iputo J. Dietary intake, body composition and micronutrient profile of patients on maintenance hemodialysis attending Kiruddu National Referral Hospital, Uganda: A cross sectional study. PLoS One 2023; 18:e0291813. [PMID: 37856499 PMCID: PMC10586598 DOI: 10.1371/journal.pone.0291813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 09/05/2023] [Indexed: 10/21/2023] Open
Abstract
Patients on maintenance hemodialysis are at a great risk for altered nutritional status, characterized by protein energy wasting and micronutrient deficiency due to medication interactions and dietary restrictions. This study determined the dietary intake, micronutrient profile and body composition of patients on maintenance hemodialysis at Kiruddu National referral hospital (KNRH), Uganda. A cross sectional study was done among adult CKD patients on maintenance hemodialysis therapy at KNRH. Data concerning patients' demographics, clinical history and dietary intake was obtained using interactive and quantitative food frequency questionnaires. Body composition was obtained using the TANITA BC-351, Japan weighing Bathroom scale and anthropometric measurements using standard methods and procedures. Serum micronutrient profile assessment was done using the COBAS Auto analyzer. Data analysis was done using the SPSS software version 20. T-test was used to make comparisons and logistic regression analysis was done to check for any correlations. A P-value of < 0.05 was considered statistically significant. Among the 63 hemodialysis patients, 38% were female, with a median duration of hemodialysis of 12 months and the overall age range of patients was 31-40 years. Majority (92.1%) of the patients had hypertension. Carbohydrates like maize flour were highly consumed, in addition to eggs among the proteins on the daily basis. Fruits and vegetables were not highly consumed. Regarding body composition; 75% of the study participants had normal Body mass Index (BMI), the mean muscle mass was 51.94±8.68, body fat was 15.25±7.35, bone mass was 2.77±0.46 and body water was 62.04±9.06. Patients had deranged micronutrient levels especially for Vitamin D, Potassium and phosphorus. In conclusion, hemodialysis patients at KNRH, have altered nutritional status as evidenced by altered body weight for some patients and deranged micronutrient levels. We recommend that hemodialysis patients should be regularly assessed for nutritional status, appropriately treated and educated about their nutritional status.
Collapse
Affiliation(s)
- Fred Lawrence Sembajwe
- Department of Medical Physiology, Faculty of Health Sciences, Busitema University, Mbale, Uganda
| | - Agnes Namaganda
- Department of Medical Physiology, Faculty of Health Sciences, Busitema University, Mbale, Uganda
- Department of Medical Physiology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Joshua Nfambi
- Department of Medical Physiology, Faculty of Health Sciences, Busitema University, Mbale, Uganda
| | - Haruna Muwonge
- Department of Medical Physiology, Faculty of Health Sciences, Busitema University, Mbale, Uganda
| | - Godfrey Katamba
- Department of Physiology, College of Health, Medicine and Life Sciences, King Ceasor University, Kampala, Uganda
| | - Ritah Nakato
- Department of Pharmacology, College of Medicine, Lira University, Lira, Uganda
| | - Prossy Nabachenje
- Department of Pediatrics, Faculty of Health Sciences, Busitema University, Mbale, Uganda
| | - Enid Kawala Kagoya
- Department of Community Health and Behavioural Sciences, Faculty of Health Sciences, Busitema University, Mbale, Uganda
| | - Annet Namubamba
- Department of Public Health, School of public Health Kololo Annex, Makerere University, Kampala, Uganda
| | - Daniel Kiggundu
- Department of Medicine, Dialysis Unit, Kiruddu National Referral Hospital, Kampala, Uganda
| | - Brian Bitek
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Gulu University, Gulu, Uganda
| | - Robert Kalyesubula
- Department of Medical Physiology, Faculty of Health Sciences, Busitema University, Mbale, Uganda
| | - Jehu Iputo
- Department of Medical Physiology, College of Health Sciences, Makerere University, Kampala, Uganda
| |
Collapse
|
8
|
Kibirige D, Sekitoleko I, Lumu W. Burden and predictors of diabetic kidney disease in an adult Ugandan population with new-onset diabetes. BMC Res Notes 2023; 16:234. [PMID: 37770935 PMCID: PMC10540316 DOI: 10.1186/s13104-023-06500-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 09/04/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND Despite the growing evidence of diabetic kidney disease (DKD) in adult patients with long-standing diabetes in sub-Saharan Africa, data on its burden and correlates in adult African patients with new-onset diabetes are limited. We, therefore, undertook this study to determine the burden and predictors of DKD in an adult population with new-onset diabetes in Uganda. METHODS We collected data on the relevant sociodemographic, clinical, anthropometric, and metabolic characteristics in 519 participants with newly diagnosed diabetes recruited from seven tertiary hospitals. A spot mid-stream urine sample was collected for determination of the urine albumin creatinine ratio (UACR) using Clinitek® microalbumin strips and a point-of-care Clinitek® status analyser. The estimated glomerular filtration rate (e-GFR) was determined using the Chronic Kidney Disease Epidemiology formula. The presence of DKD was defined as a spot UACR ≥ 3 mg/mmol with or without an e-GFR < 60 ml/min/1.73m2. RESULTS The median (IQR) age, UACR, and e-GFR of the participants were 48 years (39-57), 2.27 mg/mmol (1.14-3.41), and 121.8 ml/min/1.73m2 (105.4-133.9). UACR ≥ 3 mg/mmol and e-GFR < 60 ml/min/1.73m2 was noted in 175 (33.7%) and 7 (1.4%) participants, respectively. DKD was documented in 175 participants (33.7%). Compared with those without DKD, participants with DKD were more likely to be ≥ 50 years of age (53.7% vs. 43%, p = 0.02) and to have co-existing hypertension at the time of diagnosis (40.6% vs. 30.1%, p = 0.02). On multivariate analysis, self-reported hypertension comorbidity (OR 1.76 95% CI 1.24-2.48, p = 0.002) and body mass index (BMI) ≥ 30 kg/m2 (OR 0.61 95% CI 0.41-0.91, p = 0.02) were noted to independently predict DKD. CONCLUSION In this study population, DKD was relatively common and was independently associated with self-reported hypertension comorbidity and BMI ≥ 30 kg/m2.
Collapse
Affiliation(s)
- Davis Kibirige
- Non-Communicable Diseases Program, Medical Research Council, Research Unit, Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda, Entebbe, Uganda.
- Department of Medicine, Uganda Martyrs Hospital Lubaga, Kampala, Uganda.
| | - Isaac Sekitoleko
- Non-Communicable Diseases Program, Medical Research Council, Research Unit, Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda, Entebbe, Uganda
| | - William Lumu
- Department of Medicine, Mengo Hospital, Kampala, Uganda
| |
Collapse
|
9
|
Bu LK, Jia PP, Li WG, Li YZ, Li TY, Pei DS. Probiotics mitigate kidney damage after exposure to Sri Lanka's local groundwater from chronic kidney disease with uncertain etiology (CKDu) prevalent area in zebrafish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 262:106671. [PMID: 37657145 DOI: 10.1016/j.aquatox.2023.106671] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/03/2023]
Abstract
Groundwater in Sri Lanka, contaminated with environmental toxins, is suspected to potentially induce chronic kidney disease of uncertain etiology (CKDu) in humans. This study aims to elucidate the potential mitigating effects of probiotics on kidney damage induced by exposure to this local groundwater (LW) in zebrafish. We used zebrafish as a model organism and exposed them to local groundwater to evaluate the risk of CKDu. Probiotics were then added at a concentration of 108 colony-forming units per milliliter (CFU/mL). Our findings revealed that exposure to local groundwater resulted in abnormalities, such as tail deletion and spinal curvature in zebrafish larvae. However, the addition of probiotics mitigated these effects, improving the hatching rate, heart rate, length, weight, deformity rate, survival rate, and abnormal behavior of zebrafish. It also positively influenced the differential expression levels of kidney development and immunity-related genes (dync2h1, foxj1, pkd2, gata3, slc20a1, il1β, and lyso). Furthermore, exposure to LW decreased both the diversity and abundance of microbiota in zebrafish larvae. However, treatment with probiotics, such as L. plantarum and L. rhamnosus partially restored the disrupted gut microbiota and significantly impacted the cellular process pathways of the microbial community, as determined by KEGG (Kyoto Encyclopedia of Genes and Genomes) analysis. In conclusion, this study highlights the risks associated with Sri Lanka's local groundwater from a CKDu prevalent area and confirms the beneficial effects of different probiotics. These findings may provide new insights into bacterial function in host kidney health.
Collapse
Affiliation(s)
- Ling-Kang Bu
- College of Life Science, Henan Normal University, Xinxiang 453007, China; School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Pan-Pan Jia
- School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Wei-Guo Li
- College of Life Science, Henan Normal University, Xinxiang 453007, China
| | - Yong-Zhi Li
- Chongqing Institute of Green and Intelligent Technology, Chongqing School of University of Chinese Academy of Sciences, CAS, Chongqing 400714, China
| | - Tian-Yun Li
- Chongqing Institute of Green and Intelligent Technology, Chongqing School of University of Chinese Academy of Sciences, CAS, Chongqing 400714, China
| | - De-Sheng Pei
- School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| |
Collapse
|
10
|
Mukunya D, Oguttu F, Nambozo B, Nantale R, Makoko TB, Napyo A, Tumuhamye J, Wani S, Auma P, Atim K, Okello D, Wamulugwa J, Ssegawa L, Wandabwa J, Kiguli S, Chebet M, Musaba MW, Nahurira D. Decreased renal function among children born to women with obstructed labour in Eastern Uganda: a cohort study. RESEARCH SQUARE 2023:rs.3.rs-3121633. [PMID: 37503197 PMCID: PMC10371083 DOI: 10.21203/rs.3.rs-3121633/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Background Over two million children and adolescents suffer from chronic kidney disease globally. Early childhood insults such as birth asphyxia could be risk factors for development of chronic kidney disease in infancy. Our study aimed to assess renal function among children aged two to four years, born to women with obstructed labour. Methods We followed up 144 children aged two to four years, born to women with obstructed labor at Mbale regional referral hospital in Eastern Uganda. We used estimated glomerular filtration rate (eGFR) by the Schwartz formula to calculate eGFR (0.413*height)/ serum creatinine as a measure of renal function. eGFR less than 90 ml/min/1.73m2 was classified as decreased renal function. Results The mean age of the children was 2.8 years, standard deviation (SD) of 0.4 years. Majority of the children were male (96/144: 66.7%). The mean umbilical lactate level at birth among the study participants was 8.9 mmol/L with a standard deviation (SD) of 5.0. eGFR values ranged from 55 to 163ml/min/1.72m2, mean 85.8 ± SD 15.9. One third (31.3%) 45/144 had normal eGFR (> 90 ml/Min/1.72m2), two thirds (67.4%) 97/144 had a mild decrease of eGFR (60-89 ml/Min/1.72m2), and only 2/144 (1.4%) had a moderate decrease of eGFR. Overall incidence of reduced eGFR was 68.8% (99/144). Conclusion We observed a high incidence of impaired renal function among children born to women with obstructed labour. We recommend routine follow up of children born to women with obstructed labour and add our voices to those calling for improved intra-partum and peripartum care.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Josephine Tumuhamye
- Busitema University Centre of Excellency for Maternal Reproductive and Child Health
| | | | | | | | | | | | | | | | - Sarah Kiguli
- Makerere University Hospital, Makerere University Kampala
| | | | | | | |
Collapse
|
11
|
Paengsai N, Noppakun K, Jourdain G, Cressey TR, Salvadori N, Chaiwarith R, Tantraworasin A, Mary JY, Bowonwatanuwong C, Bhakeecheep S, Traisathit P, Kosachunhanun N. Chronic Kidney Disease in a Large National Human Immunodeficiency Virus Treatment Program. Healthcare (Basel) 2022; 10:healthcare10081490. [PMID: 36011147 PMCID: PMC9408286 DOI: 10.3390/healthcare10081490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/28/2022] [Accepted: 08/04/2022] [Indexed: 11/29/2022] Open
Abstract
Tenofovir disoproxil fumarate (TDF) is associated with a risk of chronic kidney disease (CKD), especially in Asian populations. Data from the Thai national health insurance system was used to assess CKD incidence in patients receiving antiretroviral therapy in real-world practice. We analyzed data from patients who initiated one of the following first-line regimens: zidovudine + lamivudine + nevirapine (AZT + 3TC + NVP); zidovudine + lamivudine + efavirenz (AZT + 3TC + EFV); tenofovir + lamivudine + nevirapine (TDF + 3TC + NVP); tenofovir + lamivudine/emtricitabine + efavirenz (TDF + 3TC/FTC + EFV); and tenofovir +lamivudine +lopinavir/ritonavir (TDF + 3TC + LPV/r). CKD was defined as glomerular filtration rate <60 mL/min/1.73 m2 for >3 months, or a confirmed 2010 WHO diagnosis (ICD-10 code N183, N184, or N185). Death competing risk survival regression models were used. Among 27,313 participants, with a median age of 36.8 years and median follow-up of 2.3 years, 245 patients (0.9%) were diagnosed with CKD (incidence 3.2 per 1000 patient-years; 95% CI 2.8−3.6). Compared with patients receiving AZT + 3TC + NVP, the risk of CKD measured by adjusted sub-distribution hazard ratio (aSHR) was 6.5 (95% CI 3.9−11.1) in patients on TDF + 3TC + LPV/r, 3.8 (95% CI 2.3−6.0) in TDF + 3TC + NVP, and 1.6 (95% CI 1.2−2.3) in TDF + 3TC/FTC + EFV. Among patients receiving TDF, compared with those receiving TDF + 3TC/FTC + EFV, the aSHR was 4.0 (95% CI 2.3−6.8) in TDF + 3TC + LPV/r and 2.3 (95% CI 1.4−3.6) in TDF + 3TC + NVP. TDF was associated with an increased risk of CKD, especially when combined with LPV/r or NVP.
Collapse
Affiliation(s)
- Ninutcha Paengsai
- Clinical Epidemiology Program, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- National Health Security Office (NHSO), Bangkok 10210, Thailand
- Clinical Epidemiology and Clinical Statistics Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kajohnsak Noppakun
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Pharmacoepidemiology and Statistics Research Center (PESRC), Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence:
| | - Gonzague Jourdain
- Institut de Recherche pour le Développement (IRD), MIVEGEC, 13002 Marseille, France
- Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
- Data Science Research Center, Department of Statistics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Tim Roy Cressey
- Institut de Recherche pour le Développement (IRD), MIVEGEC, 13002 Marseille, France
- Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool L69 3GF, UK
- Department of Statistics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nicolas Salvadori
- Institut de Recherche pour le Développement (IRD), MIVEGEC, 13002 Marseille, France
- Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Statistics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Romanee Chaiwarith
- Division of Infectious Disease and Tropical Medicine, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Apichat Tantraworasin
- Clinical Epidemiology Program, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Clinical Epidemiology and Clinical Statistics Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Clinical Surgical Research Center, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jean Yves Mary
- INSERM UMR 1135, Equipe ECSTRRA, Centre de Recherche Epidémiologie Statistique Sorbonne Paris Cité, Université Paris Diderot, 75004 Paris, France
| | | | | | - Patrinee Traisathit
- Data Science Research Center, Department of Statistics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Natapong Kosachunhanun
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| |
Collapse
|
12
|
Ronny SSF, Joaniter NI, Robert K, Bonnie W, Bruce K, James K, Posiano O, Peace B. Comparison of the prevalence of kidney disease by proteinuria and decreased estimated glomerular filtration rate determined using three creatinine-based equations among patients admitted on medical wards of Masaka Regional Referral Hospital in Uganda: a prospective study. BMC Nephrol 2022; 23:242. [PMID: 35799132 PMCID: PMC9264612 DOI: 10.1186/s12882-022-02865-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 06/20/2022] [Indexed: 11/10/2022] Open
Abstract
Background Despite estimated glomerular filtration rate (eGFR) being the best marker for kidney function, there are no studies in sub-Saharan Africa comparing the performance of various equations used to determine eGFR. We compared prevalence of kidney disease determined by proteinuria of ≥ + 1 and or kidney disease improving global outcomes (KDIGO) eGFR criteria of < 60 ml/minute/1.73m2 determined using three creatinine-based equations among patients admitted on medical ward of Masaka Regional Referral Hospital. Methods This was a prospective study conducted among adult patients admitted on medical wards between September 2020 to March 2021. Spot urine samples were collected to assess for proteinuria and blood samples were collected to assess serum creatinine levels. Kidney disease was defined as proteinuria of ≥ 1 + on spot urine dipstick and or KDIGO eGFR criteria of < 60 ml/minute/1.73m2. Estimated glomerular filtration rate was calculated using three creatinine-based equations: a) Full Age Spectrum equation (FAS), b) chronic kidney disease-Epidemiology collaboration (CKD-EPI) 2021 equation, c) CKD EPI 2009 (without and with race factor) equation. CKD was determined after followed up at 90 days post enrollment to determine the chronicity of proteinuria of ≥ + 1 and or KDIGO eGFR criteria of < 60mls /minute/1.73m2. We also compared prevalence of CKD determined by KDIGO eGFR criteria of < 60mls /minute/1.73m2 vs age adapted eGFR threshold criteria for defining CKD. Results Among the 357 patients enrolled in the study, KDIGO eGFR criteria of < 60mls / minute determined using FAS and CKD-EPI 2009 without race factor equations and or proteinuria of ≥ + 1 showed the highest overall prevalence of kidney disease at 27.2%. Prevalence of confirmed CKD at 90 days was highest with proteinuria ≥ + 1 and or KDIGO eGFR criteria of < 60mls/min determined using CKD EPI 2009 without race factor Equation (15.1%). Conclusions Use of KDIGO eGFR criteria of < 60mls / minute /1.73m2 using FAS and CKD-EPI 2009 without race equations identifies the largest number of patients with CKD. Health care systems in sub-Saharan Africa should calculate eGFR using FAS equations or CKD-EPI 2009 without race equations during basic screening and management protocols. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-022-02865-w.
Collapse
Affiliation(s)
- SSenabulya F Ronny
- Department of Medicine, Makerere University College of Health Sciences, P.O.BOX 7062, Kampala, Uganda.
| | - Nankabirwa I Joaniter
- Department of Medicine, Makerere University College of Health Sciences, P.O.BOX 7062, Kampala, Uganda.,Infectious Disease Research Collaboration, Kampala, Uganda
| | - Kalyesubula Robert
- Department of Medicine, Makerere University College of Health Sciences, P.O.BOX 7062, Kampala, Uganda
| | - Wandera Bonnie
- Makerere NCD Training Program, Makerere Lung Institute, Kampala, Uganda
| | - Kirenga Bruce
- Department of Medicine, Makerere University College of Health Sciences, P.O.BOX 7062, Kampala, Uganda.,Makerere NCD Training Program, Makerere Lung Institute, Kampala, Uganda
| | - Kayima James
- Department of Medicine, Makerere University College of Health Sciences, P.O.BOX 7062, Kampala, Uganda.,Uganda Heart Institute, Mulago Hospital, Kampala, Uganda
| | - Ocama Posiano
- Department of Medicine, Makerere University College of Health Sciences, P.O.BOX 7062, Kampala, Uganda
| | - Bagasha Peace
- Department of Medicine, Makerere University College of Health Sciences, P.O.BOX 7062, Kampala, Uganda.,Mulago National Referral Hospital, Kampala, Uganda
| |
Collapse
|
13
|
Zou X, Wang R, Yang Z, Wang Q, Fu W, Huo Z, Ge F, Zhong R, Jiang Y, Li J, Xiong S, Hong W, Liang W. Family Socioeconomic Position and Lung Cancer Risk: A Meta-Analysis and a Mendelian Randomization Study. Front Public Health 2022; 10:780538. [PMID: 35734761 PMCID: PMC9207765 DOI: 10.3389/fpubh.2022.780538] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundFamily socioeconomic position (SEP) in childhood is an important factor to predict some chronic diseases. However, the association between family SEP in childhood and the risk of lung cancer is not clear.MethodsA systematic search was performed to explore their relationship. We selected education level, socioeconomic positions of parents and childhood housing conditions to represent an individual family SEP. Hazard ratios (HRs) of lung cancer specific-mortality were synthesized using a random effects model. Two-sample Mendelian randomization (MR) was carried out with summary data from published genome-wide association studies of SEP to assess the possible causal relationship of SEP and risk of lung cancer.ResultsThrough meta-analysis of 13 studies, we observed that to compared with the better SEP, the poorer SEP in the childhood was associated with the increased lung cancer risk in the adulthood (HR: 1.25, 95% CI: 1.10 to 1.43). In addition, the dose-response analysis revealed a positive correlation between the poorer SEP and increased lung cancer risk. Same conclusion was reached in MR [(education level) OR 0.50, 95% CI: 0.39 to 0.63; P < 0.001].ConclusionThis study indicates that poor family socioeconomic position in childhood is causally correlated with lung cancer risk in adulthood.Systematic Review Registrationidentifier: 159082.
Collapse
Affiliation(s)
- Xusen Zou
- South China University of Technology, School of Public Administration, Guangzhou, China
| | - Runchen Wang
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Nanshan School, Guangzhou Medical University, Guangzhou, China
| | - Zhao Yang
- Peking University First Hospital, Beijing, China
| | - Qixia Wang
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Nanshan School, Guangzhou Medical University, Guangzhou, China
| | - Wenhai Fu
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- First Clinical School, Guangzhou Medical University, Guangzhou, China
| | - Zhenyu Huo
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Nanshan School, Guangzhou Medical University, Guangzhou, China
| | - Fan Ge
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- First Clinical School, Guangzhou Medical University, Guangzhou, China
| | - Ran Zhong
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yu Jiang
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Nanshan School, Guangzhou Medical University, Guangzhou, China
| | - Jiangfu Li
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shan Xiong
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wen Hong
- South China University of Technology, School of Public Administration, Guangzhou, China
- Wen Hong
| | - Wenhua Liang
- Department of Thoracic Oncology and Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- *Correspondence: Wenhua Liang
| |
Collapse
|
14
|
Kalyesubula R, Brewster U, Kansiime G. Global Dialysis Perspective: Uganda. KIDNEY360 2022; 3:933-936. [PMID: 36128482 PMCID: PMC9438417 DOI: 10.34067/kid.0007002021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/01/2022] [Indexed: 01/10/2023]
Affiliation(s)
- Robert Kalyesubula
- Departments of Physiology and Medicine, Makerere University College of Health Sciences, Kampala, Uganda.,Section of Nephrology, Yale School of Medicine, Connecticut
| | | | - Grace Kansiime
- Department of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| |
Collapse
|
15
|
Kebede KM, Abateneh DD, Teferi MB, Asres A. Chronic kidney disease and associated factors among adult population in Southwest Ethiopia. PLoS One 2022; 17:e0264611. [PMID: 35239741 PMCID: PMC8893675 DOI: 10.1371/journal.pone.0264611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 02/14/2022] [Indexed: 11/19/2022] Open
Abstract
In Ethiopia, data on the burden and determinants of chronic kidney disease (CKD) in the general population is limited. This community-based study was conducted to assess the burden and associated factors of CKD among adults in Southwest Ethiopia. The study was conducted from August 23, 2018-October 16, 2018. Study participants were selected using a random sampling method. A structured questionnaire was used to collect relevant data. Blood pressure and anthropometric indices were measured following standard procedures. About 5 ml of urine sample was collected and the dipstick test was performed immediately. A blood sample of 3-5ml was collected for serum creatinine and blood glucose level determination. The three commonest estimators of glomerular filtration rate and the National Kidney Foundation Kidney Disease Outcomes Quality Initiative were used to define and stage CKD. Data were analyzed using SPSS 21. Multivariable logistic regression was employed and p-value <0.05 was used to indicate statistically significant results. A total of 326 participants with a mean age of 39.9(SD±11.2) years were enrolled in the study. The proportions of female participants (59.8%) were relatively higher than male participants (40.2%). The mean eGFR using CKD-EPI, CG and MDRD was 124.34 (SD±23.8) mL/min/1.73m2, 110.67(SD±33.0) mL/min/1.73m2 and 131.29 (SD±32.5) mL/min/1.73m2 respectively. The prevalence of CKD was 7.4% using CKD-EPI & MDRD and 8% using CG. Similar finding using CKD-EPI & MDRD may indicate that either CKD-EPI or MDRD can be used to estimate GFR in this study area. In the age and sex-adjusted logistic regression model, hypertension was significantly associated with CKD using CKD-EPI & MDRD and age ≥40 years old was significantly associated with CKD using CG. Behavioral characteristics and other traditional risk factors were not significantly associated with CKD in the current study. The prevalence of CKD was high in the study area. Only hypertension and age ≥40 years old were significantly associated with CKD. More of the increased prevalence of CKD in the current study remained unexplained and deserves further study.
Collapse
Affiliation(s)
- Kindie Mitiku Kebede
- College of Medicine and Health Sciences, Mizan Tepi University, Mizan Teferi, Ethiopia
| | - Dejene Derseh Abateneh
- College of Medicine and Health Sciences, Mizan Tepi University, Mizan Teferi, Ethiopia
- Menelik II College of Medicine and Health Sciences, Kotebe Metropolitan University, Addis Ababa, Ethiopia
- * E-mail:
| | - Melkamu Beyene Teferi
- College of Medicine and Health Sciences, Mizan Tepi University, Mizan Teferi, Ethiopia
| | - Abyot Asres
- College of Medicine and Health Sciences, Mizan Tepi University, Mizan Teferi, Ethiopia
| |
Collapse
|
16
|
Siddharthan T, Kalyesubula R, Morgan B, Ermer T, Rabin TL, Kayongo A, Munana R, Anton N, Kast K, Schaeffner E, Kirenga B, Knauf F. The rural Uganda non-communicable disease (RUNCD) study: prevalence and risk factors of self-reported NCDs from a cross sectional survey. BMC Public Health 2021; 21:2036. [PMID: 34743687 PMCID: PMC8572568 DOI: 10.1186/s12889-021-12123-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 10/28/2021] [Indexed: 11/29/2022] Open
Abstract
Background Non-communicable diseases (NCDs) are an increasing global concern, with morbidity and mortality largely occurring in low- and middle-income settings. We established the prospective Rural Uganda Non-Communicable Disease (RUNCD) cohort to longitudinally characterize the NCD prevalence, progression, and complications in rural Africa. Methods We conducted a population-based census for NCD research. We systematically enrolled adults in each household among three sub-counties of the larger Nakaseke Health district and collected baseline demographic, health status, and self-reported chronic disease information. We present our data on self-reported chronic disease, as stratified by age, sex, educational attainment, and sub-county. Results A total of 16,694 adults were surveyed with 10,563 (63%) respondents enrolled in the self-reported study. Average age was 37.8 years (SD = 16.5) and 45% (7481) were male. Among self-reported diseases, hypertension (HTN) was most prevalent (6.3%). 1.1% of participants reported a diagnosis of diabetes, 1.1% asthma, 0.7% COPD, and 0.4% kidney disease. 2.4% of the population described more than one NCD. Self-reported HTN was significantly higher in the peri-urban subcounty than in the other two rural sub-counties (p < 0.001); diagnoses for all other diseases did not differ significantly between sub-counties. Odds for self-reported HTN increased significantly with age (OR = 1.87 per 10 years of age, 95% CI 1.78–1.96). Male sex was associated with lower odds of reporting asthma (OR = 0.53, 95% CI 0.34–0.82) or HTN (OR = 0.31, 95% CI 0.26–0.40). Conclusions The RUNCD will establish one of the largest NCD patient cohorts in rural Africa. First analysis highlights the feasibility of systematically enrolling large numbers of adults living in a rural Ugandan district. In addition, our study demonstrates low levels of self-reported NCDs compared to the nation-wide established levels, emphasizing the need to better educate, characterize, and care for the majority of rural communities. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-021-12123-7.
Collapse
Affiliation(s)
- Trishul Siddharthan
- Division of Pulmonary and Critical Care, School of Medicine, University of Miami, 1951 NW 7th Ave, Suite 2308, Miami, FL, 33136, USA. .,Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA.
| | - Robert Kalyesubula
- Makerere College of Health Sciences, Makerere University, Kampala, Uganda.,African Community Center for Social Sustainability (ACCESS), Nakaseke, Uganda
| | - Brooks Morgan
- Division of Pulmonary and Critical Care, School of Medicine, University of Miami, 1951 NW 7th Ave, Suite 2308, Miami, FL, 33136, USA.,Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Theresa Ermer
- Faculty of Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Tracy L Rabin
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.,Uganda Initiative for Integrated Management of Non-Communicable Diseases, Kampala, Uganda
| | - Alex Kayongo
- Makerere College of Health Sciences, Makerere University, Kampala, Uganda.,African Community Center for Social Sustainability (ACCESS), Nakaseke, Uganda
| | - Richard Munana
- Makerere College of Health Sciences, Makerere University, Kampala, Uganda.,African Community Center for Social Sustainability (ACCESS), Nakaseke, Uganda
| | - Nora Anton
- World Health Summit c/o Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Katharina Kast
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Elke Schaeffner
- Institute of Public Health, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Bruce Kirenga
- Makerere College of Health Sciences, Makerere University, Kampala, Uganda
| | - Felix Knauf
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.,Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | | |
Collapse
|
17
|
Prevalence of Chronic Kidney Disease as a Marker of Hypertension Target Organ Damage in Africa: A Systematic Review and Meta-Analysis. Int J Hypertens 2021; 2021:7243523. [PMID: 34671490 PMCID: PMC8523261 DOI: 10.1155/2021/7243523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/21/2021] [Accepted: 09/15/2021] [Indexed: 11/17/2022] Open
Abstract
Introduction Hypertension is a major global cause of cardiovascular disease and death with rising worldwide prevalence, particularly in low-income countries. With low awareness, poor treatment, and low control of hypertension in Africans, there is an increased number of patients with target organ damage (TOD), especially chronic kidney disease (CKD), as a consequence of hypertension. The aim of our study is to assess the prevalence of CKD from studies in Africa reporting TOD related to hypertension. Methods We performed a search of PubMed/MEDLINE, Web of Science, EBSCOhost, and African Journals Online (AJOL) for studies reporting on CKD as TOD in patients with hypertension. The pooled estimate of CKD was then presented by subregions, age group, eGFR equations, and urban or rural location. Results We identified 1,334 articles from which 12 studies were included for quantitative analysis. The studies included 5297 participants from 6 countries (Ghana, Nigeria, Uganda, Tanzania, Democratic Republic of Congo, and South Africa). The pooled prevalence of CKD was 17.8% (95% CI 13.0-23.3%), and CKD was significantly more prevalent in West Africa (21.3% (95% CI: 16.1-27.0); p < 0.0001) and in studies conducted in urban settings (p < 0.001). CKD prevalence was not significantly different by type of GFR equation or age. Conclusion This study reports a high prevalence of CKD related to hypertension with a higher prevalence in urban than rural areas. This emphasizes the role of hypertension in causing kidney damage, and the need for strategies to improve awareness, treatment, and control of hypertension in Africans. This study is registered with PROSPERO registration number CRD42018089263.
Collapse
|
18
|
George C, Stoker S, Okpechi I, Woodward M, Kengne A. The Chronic Kidney Disease in Africa (CKD-Africa) collaboration: lessons from a new pan-African network. BMJ Glob Health 2021; 6:e006454. [PMID: 34348933 PMCID: PMC8340290 DOI: 10.1136/bmjgh-2021-006454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/20/2021] [Indexed: 11/03/2022] Open
Abstract
Chronic kidney disease (CKD) is a global public health problem, seemingly affecting individuals from low-income and-middle-income countries (LMICs) disproportionately, especially in sub-Saharan Africa. Despite the growing evidence pointing to an increasing prevalence of CKD across Africa, there has not been an Africa-wide concerted effort to provide reliable estimates that could adequately inform health services planning and policy development to address the consequences of CKD. Therefore, we established the CKD in Africa (CKD-Africa) Collaboration. To date, the network has curated data from 39 studies conducted in 12 African countries, totalling 35 747 participants, of which most are from sub-Saharan Africa. We are, however, continuously seeking further collaborations with other groups who have suitable data to grow the network. Although many successful research consortia exist, few papers have been published (with none from Africa) detailing the challenges faced and lessons learnt in setting up and managing a research consortium. Drawing on our experience, we describe the steps taken and the key factors required to establish a functional collaborative consortium among researchers in Africa. In addition, we present the challenges we encountered in building our network, how we managed those challenges and the benefit of such a collaboration for Africa. Although the CKD-Africa Collaboration is focused primarily on CKD research, many of the lessons learnt can be applied more widely in public health research in LMICs.
Collapse
Affiliation(s)
- Cindy George
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Suzaan Stoker
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Ikechi Okpechi
- Division of Nephrology and Hypertension, University of Cape Town, Cape Town, South Africa
- Division of Nephrology and Immunology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
- Kidney and Hypertension Research Unit, University of Cape Town, Cape Town, South Africa
| | - Mark Woodward
- The George Institute for Global Health, Department of Epidemiology and Biostatistics, Imperial College, London, UK
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Andre Kengne
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
19
|
Abstract
OBJECTIVE AND DESIGN People living with HIV (PLH) suffer disproportionately from the chronic diseases exacerbated by smoking tobacco. We performed a systematic review and meta-analysis to establish the relative prevalence of smoking among PLH. METHODS We included observational studies reporting current smoking rates among PLH and comparators without HIV. We searched Medline, EMBASE, LILACS and SciELO from inception to 31 August 2019. We excluded studies that recruited participants with smoking related illness. We used a random effects model to estimate the odds ratio for current smoking in PLH and people without HIV. We used the Newcastle--Ottawa scale to assess methodological bias. We performed subgroup analysis based on sex and WHO region. We quantified heterogeneity with meta-regression and predictive distributions. PROSPERO registration:CRD42016052608. RESULTS We identified 6116 studies and included 37. Of 111 258 PLH compared with 10 961 217 HIV-negative participants pooled odds of smoking were 1.64 [(95% confidence interval, 95% CI: 1.45-1.85) (95% prediction interval: 0.66-4.10, I2 = 98.1%)]. Odds for men and women living with HIV were 1.68 [(95% CI: 1.44-1.95) (95% prediction interval: 0.71-3.98, I2 = 91.1%)] and 2.16 [(95% CI: 1.77-2.63) (95% prediction interval: 0.92-5.07, I2 = 81.7%)] respectively. CONCLUSION PLH are more likely to be smokers than people without HIV. This finding was true in subgroup analyses of men, women and in four of five WHO regions from which data were available. Meta-regression did not explain heterogeneity, which we attribute to the diversity of PLH populations worldwide. Smoking is a barrier to PLH achieving parity in life expectancy and an important covariate in studies of HIV-associated multimorbidity.
Collapse
|
20
|
Bagasha P, Namukwaya E, Leng M, Kalyesubula R, Mutebi E, Naitala R, Katabira E, Petrova M. Comparison of the health-related quality of life of end stage kidney disease patients on hemodialysis and non-hemodialysis management in Uganda. BMC Palliat Care 2021; 20:52. [PMID: 33794849 PMCID: PMC8017791 DOI: 10.1186/s12904-021-00743-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 03/15/2021] [Indexed: 11/04/2022] Open
Abstract
Background Health-related quality of life is recognized as a key outcome in chronic disease management, including kidney disease. With no national healthcare coverage for hemodialysis, Ugandan patients struggle to pay for their care, driving families and communities into poverty. Studies in developed countries show that patients on hemodialysis may prioritize quality of life over survival time, but there is a dearth of information on this in developing countries. We therefore measured the quality of life (QOL) and associated factors in end stage renal disease (ESRD) patients in a major tertiary care hospital in Uganda. Methods Baseline QOL measurement in a longitudinal cohort study was undertaken using the Kidney Disease Quality of Life Short Form Ver 1.3. Patients were recruited from the adult nephrology unit if aged > 18 years with an estimated glomerular filtration rate ≤ 15mls/min/1,73m2. Clinical, demographic and micro-financial information was collected to determine factors associated with QOL scores. Results Three hundred sixty-four patients (364) were recruited, of whom 124 were on hemodialysis (HD) and 240 on non-hemodialysis (non-HD) management. Overall, 94.3% of participants scored less than 50 (maximum 100). Mean QOL scores were low across all three principal domains: physical health (HD: 33.14, non-HD: 34.23), mental health (HD: 38.01, non-HD: 38.02), and kidney disease (HD: 35.16, non-HD: 34.00). No statistically significant difference was found between the overall quality of life scores of the two management groups. Breadwinner status (p < 0.001), source of income (p0.026) and hemodialysis management type (p0.032) were the only factors significantly associated with QOL scores, and this was observed in the physical health and kidney disease principal domains only. No factors were significantly associated with scores for the mental health principal domain and/or overall QOL score. Conclusion The quality of life of Ugandan patients with ESRD has been found to be lower across all three domains of the Kidney Disease Quality of Life Short Form than reported anywhere in the world, with no difference observed between the non-HD and HD management groups. Interventions targeting all domains of QOL are needed among patients with ESRD in Uganda and, potentially, in other resource limited settings.
Collapse
Affiliation(s)
- Peace Bagasha
- School of Medicine, Department of Internal medicine, Makerere University College of Health Sciences, P.O. Box 7072, Kampala, Uganda. .,Makerere-Mulago Palliative Care Unit, Clinical Research Building, Mulago hospital site, P.O. Box 7072, Kampala, Uganda.
| | - Elizabeth Namukwaya
- School of Medicine, Department of Internal medicine, Makerere University College of Health Sciences, P.O. Box 7072, Kampala, Uganda.,Makerere-Mulago Palliative Care Unit, Clinical Research Building, Mulago hospital site, P.O. Box 7072, Kampala, Uganda
| | - Mhoira Leng
- School of Medicine, Department of Internal medicine, Makerere University College of Health Sciences, P.O. Box 7072, Kampala, Uganda.,Makerere-Mulago Palliative Care Unit, Clinical Research Building, Mulago hospital site, P.O. Box 7072, Kampala, Uganda
| | - Robert Kalyesubula
- School of Medicine, Department of Internal medicine, Makerere University College of Health Sciences, P.O. Box 7072, Kampala, Uganda
| | - Edrisa Mutebi
- School of Medicine, Department of Internal medicine, Makerere University College of Health Sciences, P.O. Box 7072, Kampala, Uganda
| | - Ronald Naitala
- School of Medicine, Department of Internal medicine, Makerere University College of Health Sciences, P.O. Box 7072, Kampala, Uganda.,Baylor College of Medicine Children's Foundation Uganda, P. O Box 72052, New Mulago Road, Kampala, Uganda
| | - Elly Katabira
- School of Medicine, Department of Internal medicine, Makerere University College of Health Sciences, P.O. Box 7072, Kampala, Uganda
| | - Mila Petrova
- Cambridge Palliative and End of Life Care Research Group, Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.,Cambridge Institute of Public Health, Forvie Site, Cambridge, CB2 0SR, UK
| |
Collapse
|
21
|
Hodel NC, Hamad A, Reither K, Kasella IM, Abdulla S, Schoetzau A, Hatz CFR, Mayr M. Comparison of Two Different Semiquantitative Urinary Dipstick Tests with Albumin-to-Creatinine Ratio for Screening and Classification of Albuminuria According to KDIGO. A Diagnostic Test Study. Diagnostics (Basel) 2021; 11:diagnostics11010081. [PMID: 33419091 PMCID: PMC7825407 DOI: 10.3390/diagnostics11010081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/18/2020] [Accepted: 12/18/2020] [Indexed: 11/16/2022] Open
Abstract
Background: Semiquantitative dipstick tests are utilized for albuminuria screening. Methods: In a prospective cross-sectional survey, we analyzed the diagnostic test validity of the semiquantitative colorimetric indicator-dye-based Combur9-Test® and the albumin-specific immunochromatographic assay Micral-Test® for the detection of albuminuria, the distribution of the semiquantitative measurements within the albuminuria stages according to KDIGO, and the utility for albuminuria screening compared with an albumin-to-creatinine ratio (ACR) in a walk-in population. Results: In 970 subjects, albuminuria (≥30 mg/g) was detected in 12.7% (95% CI 85.6–96.3%) with the ACR. Sensitivity was 82.9% (95% CI 75.1–89.1%) and 91.9% (95% CI 88.7–96.9%) and specificity 71.5% (95% CI 68.4–74.6%) and 17.5% (95% CI 15.0–20.2%) for the Combur9-Test® and Micral-Test®, respectively. Correct classification to KDIGO albuminuria stages A2/A3 with the Combur9-Test® was 15.4%, 51.4%, and 87.9% at cut-offs of 30, 100, and ≥300 mg/dL, and with the Micral-Test® it was 1.8%, 10.5%, and 53.6% at cut-offs of 2, 5, and 10 mg/dL, respectively. Overall, disagreement to KDIGO albuminuria was seen in 27% and 73% with the Combur9-Test® and Micral-Test®, respectively. From the total population, 62.5% and 15.3% were correctly ruled out and 2.2% and 1% were missed as false-negatives by the Combur9-Test® and Micral-Test®, respectively. Conclusion: Compared to the Combur9-Test®, the utility of the Micral-Test® is limited, because the fraction of correctly ruled out patients is small and a large proportion with a positive Micral-Test® require a subsequent ACR conformation test.
Collapse
Affiliation(s)
- Nikolai C. Hodel
- Medical Outpatient Department, University Hospital Basel, 4031 Basel, Switzerland;
- Clinical Research Unit, Swiss Tropical and Public Health Institute, 4051 Basel, Switzerland; (K.R.); (C.F.R.H.)
| | - Ali Hamad
- Chronic Disease Clinic, Ifakara Health Institute, Bagamoyo P.O. Box 74, Tanzania; (A.H.); (S.A.)
| | - Klaus Reither
- Clinical Research Unit, Swiss Tropical and Public Health Institute, 4051 Basel, Switzerland; (K.R.); (C.F.R.H.)
- Chronic Disease Clinic, Ifakara Health Institute, Bagamoyo P.O. Box 74, Tanzania; (A.H.); (S.A.)
- Faculty of Science, University of Basel, 4001 Basel, Switzerland;
| | | | - Salim Abdulla
- Chronic Disease Clinic, Ifakara Health Institute, Bagamoyo P.O. Box 74, Tanzania; (A.H.); (S.A.)
| | | | - Christoph F. R. Hatz
- Clinical Research Unit, Swiss Tropical and Public Health Institute, 4051 Basel, Switzerland; (K.R.); (C.F.R.H.)
- Faculty of Science, University of Basel, 4001 Basel, Switzerland;
- Infectiology/Hospital Hygiene Department, Cantonal Hospital, 9007 St. Gallen, Switzerland
| | - Michael Mayr
- Medical Outpatient Department, University Hospital Basel, 4031 Basel, Switzerland;
- Correspondence:
| |
Collapse
|
22
|
Redmon JH, Levine KE, Lebov J, Harrington J, Kondash AJ. A comparative review: Chronic Kidney Disease of unknown etiology (CKDu) research conducted in Latin America versus Asia. ENVIRONMENTAL RESEARCH 2021; 192:110270. [PMID: 33035557 DOI: 10.1016/j.envres.2020.110270] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/19/2020] [Accepted: 09/19/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION The incidence of chronic kidney disease of unknown or uncertain etiology (CKDu) is recognized as a global non-communicable health crisis. The goal of this work is to compare the types of research studies in Latin America and Asia, two regions with increasing CKDu incidence. METHODS A comparative literature review was conducted to evaluate the CKDu research design for peer-reviewed articles published from 2015 to 2019. Full texts were reviewed to identify study location, study type, study design, risk factors evaluated, and if applicable, sample type and number. RESULTS In Asia and Latin America, 82 and 65 articles were identified in total, respectively, with 55 field studies in Asia versus 34 in Latin America. In Asia, research was focused on drinking water (34), heavy metals (20), and agrochemical product usage (19) as potential risk factors. In Latin America, research focused mostly on heat stress/dehydration (36) and agrochemical product usage (18) as potential CKDu risk factors. Biological samples were collected more frequently than environmental samples, especially in Latin America. DISCUSSION Research to pinpoint the risk factors associated with CKDu to date is not standardized and typically limited in geographical scope. The emphasis of CKDu research varies by geographic region, with a greater priority placed on water quality and chemical exposure in Asia, versus dehydration and heat stress in Latin America. Using a harmonized approach to CKDu research would yield improved understanding of the risk factors associated with CKDu and how they compare across affected regions.
Collapse
Affiliation(s)
| | | | - Jill Lebov
- RTI International, Research Triangle Park, NC, USA
| | | | - A J Kondash
- RTI International, Research Triangle Park, NC, USA
| |
Collapse
|
23
|
Olanrewaju TO, Aderibigbe A, Popoola AA, Braimoh KT, Buhari MO, Adedoyin OT, Kuranga SA, Biliaminu SA, Chijioke A, Ajape AA, Grobbee DE, Blankestijn PJ, Klipstein-Grobusch K. Prevalence of chronic kidney disease and risk factors in North-Central Nigeria: a population-based survey. BMC Nephrol 2020; 21:467. [PMID: 33167899 PMCID: PMC7654149 DOI: 10.1186/s12882-020-02126-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 10/26/2020] [Indexed: 01/24/2023] Open
Abstract
Background Chronic kidney disease (CKD) is a growing challenge in low- and middle-income countries, particularly in sub-Saharan Africa. There is insufficient population-based data on CKD in Nigeria that is required to estimate its true burden, and to design prevention and management strategies. The study aims to determine the prevalence of CKD and its risk factors in Nigeria. Methods We studied 8 urban communities in Kwara State, North-Central zone of Nigeria. Blood pressure, fasting blood sugar, urinalysis, weight, height, waist circumference and hip circumference were obtained. Albuminuria and kidney length were measured by ultrasound while estimated glomerular filtration rate (eGFR) was derived from serum creatinine, using chronic disease epidemiology collaboration (CKD-EPI) equation. Associations of risk factors with CKD were determined by multivariate logistic regression and expressed as adjusted odds ratio (aOR) with corresponding 95% confidence intervals. Results One thousand three hundred and fifty-three adults ≥18 years (44% males) with mean age of 44.3 ± 14.4 years, were screened. Mean kidney lengths were: right, 93.5 ± 7.0 cm and left, 93.4 ± 7.5 cm. The age-adjusted prevalence of hypertension was 24%; diabetes 4%; obesity 8.7%; albuminuria of > 30 mg/L 7%; and dipstick proteinuria 13%. The age-adjusted prevalence of CKD by estimated GFR < 60 ml/min/1.73m2 and/or Proteinuria was 12%. Diabetes (aOR 6.41, 95%CI = 3.50–11.73, P = 0.001), obesity (aOR 1.50, 95%CI = 1.10–2.05, P = 0.011), proteinuria (aOR 2.07, 95%CI = 1.05–4.08, P = 0.035); female sex (aOR 1.67, 95%CI = 1.47–1.89, P = 0.001); and age (aOR 1.89, 95%CI = 1.13–3.17, P = 0.015) were the identified predictors of CKD. Conclusions CKD and its risk factors are prevalent among middle-aged urban populations in North-Central Nigeria. It is common among women, fueled by diabetes, ageing, obesity, and albuminuria. These data add to existing regional studies of burden of CKD that may serve as template for a national prevention framework for CKD in Nigeria. One of the limitations of the study is that the participants were voluntary community dwellers and as such not representative for the community. The sample may thus have been subjected to selection bias possibly resulting in overestimation of CKD risk factors.
Collapse
Affiliation(s)
- Timothy Olusegun Olanrewaju
- Division of Nephrology, Department of Medicine, University of Ilorin and University of Ilorin Teaching Hospital, Ilorin, Nigeria. .,Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
| | - Ademola Aderibigbe
- Division of Nephrology, Department of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria
| | - Ademola Alabi Popoola
- Division of Urology, Department of Surgery, University of Ilorin and University of Ilorin Teaching Hospital, Ilorin, Nigeria
| | - Kolawole Thomas Braimoh
- Department of Radiology, University of Ilorin and University of Ilorin Teaching Hospital, Ilorin, Nigeria
| | - Mikhail Olayinka Buhari
- Department of Pathology, University of Ilorin and University of Ilorin Teaching Hospital, Ilorin, Nigeria
| | | | - Sulyman Alege Kuranga
- Division of Urology, Department of Surgery, University of Ilorin and University of Ilorin Teaching Hospital, Ilorin, Nigeria
| | - Sikiru Abayomi Biliaminu
- Department of Chemical Pathology, University of Ilorin and University of Ilorin Teaching Hospital, Ilorin, Nigeria
| | - Adindu Chijioke
- Division of Nephrology, Department of Medicine, University of Ilorin and University of Ilorin Teaching Hospital, Ilorin, Nigeria
| | - Abdulwahab Akanbi Ajape
- Division of Urology, Department of Surgery, University of Ilorin and University of Ilorin Teaching Hospital, Ilorin, Nigeria
| | - Diederick E Grobbee
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Peter J Blankestijn
- Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Kerstin Klipstein-Grobusch
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | | |
Collapse
|
24
|
Seeley J, Kabunga E, Ssembatya J, Tomlinson L, Fabian J, Smeeth L, Nyirenda M, Newton R, Kalyesubula R, Bukenya D. Understanding kidney disease in rural central Uganda - Findings from a qualitative study. Glob Public Health 2020; 15:1566-1577. [PMID: 32352888 PMCID: PMC7613296 DOI: 10.1080/17441692.2020.1758186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/11/2020] [Indexed: 10/24/2022]
Abstract
As part of a multicentre study on kidney disease (ARK) undertaken in Malawi, South Africa and Uganda we undertook a social science component in Uganda to gather information on people's understandings and perceptions of a diagnosis of kidney dysfunction, treatment and treatment seeking. We recruited 46 people who had been given information about kidney dysfunction and had been found to have some, usually early, signs of mild impairment. Data were collected during two in-depth interviews. Most participants had heard of the condition, but half denied knowledge of the health status of their kidneys or receiving results of tests from the clinic team. This response may have been linked to a lack of symptoms, for those with early stage kidney dysfunction. The treatment people reported receiving caused some uncertainty about condition severity. This may be because several people were treated for other conditions (such as urinary tract infections) and did not require treatment specifically for kidney disease. In our study, participants assessed illness severity based on symptoms and treatment and compared with the progression of other conditions.
Collapse
Affiliation(s)
- Janet Seeley
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
- Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, UK
| | | | | | - Laurie Tomlinson
- Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Global Health, London School of Hygiene & Tropical Medicine, UK
| | - June Fabian
- Wits Donald Gordon Medical Centre, Parktown, Johannesburg, South Africa
- Medical Research Council/Wits University Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Liam Smeeth
- Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Global Health, London School of Hygiene & Tropical Medicine, UK
| | - Moffat Nyirenda
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
- Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Global Health, London School of Hygiene & Tropical Medicine, UK
| | - Robert Newton
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
- Department of Health Science, University of York, UK
| | - Robert Kalyesubula
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
- Department of Non-Communicable Disease Epidemiology, Faculty of Epidemiology and Global Health, London School of Hygiene & Tropical Medicine, UK
- Makerere University College of Health Sciences, Kampala, Uganda
| | | |
Collapse
|
25
|
Aseneh JB, Kemah BLA, Mabouna S, Njang ME, Ekane DSM, Agbor VN. Chronic kidney disease in Cameroon: a scoping review. BMC Nephrol 2020; 21:409. [PMID: 32967645 PMCID: PMC7510319 DOI: 10.1186/s12882-020-02072-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/15/2020] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES This scoping review sought to summarize available data on the prevalence, associated factors, etiology, comorbidities, treatment, cost and mortality of chronic kidney disease (CKD) in Cameroon. METHODS We searched PubMed, Scopus and African Journals Online from database inception to 31 March, 2020 to identify all studies published on the prevalence, associated factors, etiology, comorbidities, treatment, cost and mortality of CKD in Cameroon. RESULTS Thirty studies were included. The prevalence of CKD varied from 3 to 14.1 and 10.0%-14.2% in rural and urban areas, respectively. The prevalence of CKD in patients with hypertension, diabetes mellitus, and human immunodeficiency virus was 12.4-50.0, 18.5%, and 3.0-47.2%, respectively. Hypertension (22.3-59.1%), chronic glomerulonephritis (15.8-56.2%), and diabetes mellitus (15.8-56.2%) were the most common causes of CKD. The cause was unknown in 13.5-17.0% of the cases. Advanced age, hypertension, diabetes mellitus, and obesity were frequent associated factors. Hemodialysis was the main treatment modality in patients with End Stage Renal Disease (ESRD). The monthly cost of management of non-dialyzed CKD was 163 US dollars. The one-year mortality rate of ESRD was 26.8-38.6%. CONCLUSION Chronic kidney disease affects about one in 10 adults in the general population in Cameroon. Patients with hypertension, diabetes mellitus, and human immunodeficiency virus bear the greatest burden of CKD in Cameroon. Advanced age, hypertension, diabetes mellitus, and obesity are major factors associated with CKD. Chronic kidney disease in Cameroon is associated with high morbidity and mortality and huge economic cost on the patient.
Collapse
Affiliation(s)
- Jerry Brown Aseneh
- Department of Health Research, Health Education and Research Organization (HERO), Buea, Cameroon
- Clinical Research Education, Networking and Consultancy (CRENC), Douala, Cameroon
| | - Ben-Lawrence A. Kemah
- Department of Health Research, Health Education and Research Organization (HERO), Buea, Cameroon
- Royal Stoke University Hospital, England, UK
| | - Stephane Mabouna
- Department of Health Research, Health Education and Research Organization (HERO), Buea, Cameroon
| | - Mbeng Emmanuel Njang
- Department of Health Research, Health Education and Research Organization (HERO), Buea, Cameroon
- Fundong District Hospital, Fundong, Cameroon
| | - Domin Sone Majunda Ekane
- Department of Health Research, Health Education and Research Organization (HERO), Buea, Cameroon
- Katholieke Universiteit Leuven, School of Economics and Business, Campus Brussels, Belgium
| | - Valirie Ndip Agbor
- Department of Health Research, Health Education and Research Organization (HERO), Buea, Cameroon
- Nuffield Department of Population Health, University of Oxford, England, UK
| |
Collapse
|
26
|
Muiru AN, Charlebois ED, Balzer LB, Kwarisiima D, Elly A, Black D, Okiror S, Kabami J, Atukunda M, Snyman K, Petersen M, Kamya M, Havlir D, Estrella MM, Hsu CY. The epidemiology of chronic kidney disease (CKD) in rural East Africa: A population-based study. PLoS One 2020; 15:e0229649. [PMID: 32130245 PMCID: PMC7055898 DOI: 10.1371/journal.pone.0229649] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 02/11/2020] [Indexed: 12/19/2022] Open
Abstract
Background Chronic kidney disease (CKD) may be common among individuals living in sub-Saharan Africa due to the confluence of CKD risk factors and genetic predisposition. Methods We ascertained the prevalence of CKD and its risk factors among a sample of 3,686 participants of a population-based HIV trial in rural Uganda and Kenya. Prevalent CKD was defined as a serum creatinine-based estimated glomerular filtration rate <60 mL/min/1.73m2 or proteinuria (urine dipstick ≥1+). We used inverse-weighting to estimate the population prevalence of CKD, and multivariable log-link Poisson models to assess the associations of potential risk factors with CKD. Results The estimated CKD prevalence was 6.8% (95% CI 5.7–8.1%) overall and varied by region, being 12.5% (10.1–15.4%) in eastern Uganda, 3.9% (2.2–6.8%) in southwestern Uganda and 3.7% (2.7–5.1%) in western Kenya. Risk factors associated with greater CKD prevalence included age ≥60 years (adjusted prevalence ratio [aPR] 3.5 [95% CI 1.9–6.5] compared with age 18–29 years), HIV infection (aPR 1.6 [1.1–2.2]), and residence in eastern Uganda (aPR 3.9 [2.6–5.9]). However, two-thirds of individuals with CKD did not have HIV, diabetes, or hypertension as risk factors. Furthermore, we noted many individuals who did not have proteinuria had dipstick positive leukocyturia or hematuria. Conclusion The prevalence of CKD is appreciable in rural East Africa and there are considerable regional differences. Conventional risk factors appear to only explain a minority of cases, and leukocyturia and hematuria were common, highlighting the need for further research into understanding the nature of CKD in sub-Saharan Africa.
Collapse
Affiliation(s)
- Anthony N. Muiru
- University of California, San Francisco, California, United States of America
- Kidney Health Research Collaborative, San Francisco Veterans Affairs Medical Center, San Francisco, California, United States of America
- * E-mail:
| | - Edwin D. Charlebois
- University of California, San Francisco, California, United States of America
| | - Laura B. Balzer
- University of Massachusetts, Amherst, Massachusetts, United States of America
| | | | - Assurah Elly
- Kenya Medical Research Institute, Nairobi, Kenya
| | - Doug Black
- University of California, San Francisco, California, United States of America
| | - Samuel Okiror
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Jane Kabami
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | | | - Katherine Snyman
- University of California, San Francisco, California, United States of America
| | - Maya Petersen
- School of Public Health, University of California, Berkeley, California, United States of America
| | | | - Diane Havlir
- University of California, San Francisco, California, United States of America
| | - Michelle M. Estrella
- University of California, San Francisco, California, United States of America
- Kidney Health Research Collaborative, San Francisco Veterans Affairs Medical Center, San Francisco, California, United States of America
| | - Chi-yuan Hsu
- University of California, San Francisco, California, United States of America
| |
Collapse
|
27
|
Knowledge related to Chronic Kidney Disease (CKD) and perceptions on inpatient management practices among nurses at selected referral hospitals in Rwanda: A non-experimental descriptive correlational study. INTERNATIONAL JOURNAL OF AFRICA NURSING SCIENCES 2020. [DOI: 10.1016/j.ijans.2020.100203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
|
28
|
Fabian J, George JA, Etheredge HR, van Deventer M, Kalyesubula R, Wade AN, Tomlinson LA, Tollman S, Naicker S. Methods and reporting of kidney function: a systematic review of studies from sub-Saharan Africa. Clin Kidney J 2019; 12:778-787. [PMID: 31807291 PMCID: PMC6885675 DOI: 10.1093/ckj/sfz089] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Indexed: 01/01/2023] Open
Abstract
Globally, chronic kidney disease (CKD) is an emerging public health challenge but accurate data on its true prevalence are scarce, particularly in poorly resourced regions such as sub-Saharan Africa (SSA). Limited funding for population-based studies, poor laboratory infrastructure and the absence of a validated estimating equation for kidney function in Africans are contributing factors. Consequently, most available studies used to estimate population prevalence are hospital-based, with small samples of participants who are at high risk for kidney disease. While serum creatinine is most commonly used to estimate glomerular filtration, there is considerable potential bias in the measurement of creatinine that might lead to inaccurate estimates of kidney disease at individual and population level. To address this, the Laboratory Working Group of the National Kidney Disease Education Program published recommendations in 2006 to standardize the laboratory measurement of creatinine. The primary objective of this review was to appraise implementation of these recommendations in studies conducted in SSA after 2006. Secondary objectives were to assess bias relating to choice of estimating equations for assessing glomerular function in Africans and to evaluate use of recommended diagnostic criteria for CKD. This study was registered with Prospero (CRD42017068151), and using PubMed, African Journals Online and Web of Science, 5845 abstracts were reviewed and 252 full-text articles included for narrative analysis. Overall, two-thirds of studies did not report laboratory methods for creatinine measurement and just over 80% did not report whether their creatinine measurement was isotope dilution mass spectroscopy (IDMS) traceable. For those reporting a method, Jaffe was the most common (93%). The four-variable Modification of Diet in Renal Disease (4-v MDRD) equation was most frequently used (42%), followed by the CKD Epidemiology Collaboration (CKD-EPI) equation for creatinine (26%). For the 4-v MDRD equation and CKD-EPI equations, respectively, one-third to one half of studies clarified use of the coefficient for African-American (AA) ethnicity. When reporting CKD prevalence, <15% of studies fulfilled Kidney Disease: Improving Global Outcomes criteria and even fewer used a population-based sample. Six studies compared performance of estimating equations to measured glomerular filtration rate (GFR) demonstrating that coefficients for AA ethnicity used in the 4-v MDRD and the CKD-EPI equations overestimated GFR in Africans. To improve on reporting in future studies, we propose an ‘easy to use’ checklist that will standardize reporting of kidney function and improve the quality of studies in the region. This research contributes some understanding of the factors requiring attention to ensure accurate assessment of the burden of kidney disease in SSA. Many of these factors are difficult to address and extend beyond individual researchers to health systems and governmental policy, but understanding the burden of kidney disease is a critical first step to informing an integrated public health response that would provide appropriate screening, prevention and management of kidney disease in countries from SSA. This is particularly relevant as CKD is a common pathway in both infectious and non-communicable diseases, and multimorbidity is now commonplace, and even more so when those living with severe kidney disease have limited or no access to renal replacement therapy.
Collapse
Affiliation(s)
- June Fabian
- Wits Donald Gordon Medical Centre, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa.,Medical Research Council/Wits University Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Jaya A George
- Department of Chemical Pathology, National Health Laboratory Services, University of Witwatersrand, Johannesburg, South Africa
| | - Harriet R Etheredge
- Wits Donald Gordon Medical Centre, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa.,Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Manuel van Deventer
- Department of Chemical Pathology, National Health Laboratory Services, University of Witwatersrand, Johannesburg, South Africa.,Lancet Laboratories, Johannesburg, South Africa
| | - Robert Kalyesubula
- Medical Research Council/UVRI, London School of Hygiene and Tropical Medicine Research Unit, Entebbe, Uganda.,Department of Internal Medicine and Department of Physiology, Makerere University College of Health Sciences, Kampala, Uganda
| | - Alisha N Wade
- Medical Research Council/Wits University Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Laurie A Tomlinson
- Department of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Stephen Tollman
- Medical Research Council/Wits University Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,International Network for the Demographic Evaluation of Populations and their Health (INDEPTH) Network, Accra, Ghana
| | - Saraladevi Naicker
- Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| |
Collapse
|
29
|
Kalyesubula R, Hau JP, Asiki G, Ssebunya B, Kusemererwa S, Seeley J, Smeeth L, Tomlinson L, Newton R. Impaired renal function in a rural Ugandan population cohort. Wellcome Open Res 2019; 3:149. [PMID: 31223661 PMCID: PMC6560494 DOI: 10.12688/wellcomeopenres.14863.3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2019] [Indexed: 01/05/2023] Open
Abstract
Background: Kidney disease is an important cause of morbidity and mortality globally. However, there are limited data on the prevalence of impaired kidney function in sub-Saharan Africa. We aimed to determine the prevalence of reduced kidney function and associated factors in a rural Ugandan population. Methods: We undertook a study of a representative sample of the General Population Cohort in South-western Uganda. We systematically collected data on cardiovascular disease risk factors, anthropometric measurements and blood tests including haemoglobin, HIV, HbA1c and serum creatinine. The estimated glomerular filtration rate (eGFR) was calculated using the CKD-Epi equation, without the race component of the equation. Results: A total of 5,979/6,397 (93.5%) participants had valid creatinine results. The mean age was 39 years (Range:16-103 years) and 3,627 (60.7%) were female. HIV prevalence was 9.7% and about 40% of the population were pre-hypertensive or hypertensive. The mean serum creatinine level was 0.75 mg/dl (95% CI 0.74–0.75), and the average eGFR was 109.3 ml/min/1.73 m
2 (95% CI 108.8–109.9). The overall prevalence of eGFR <60 ml/min/1.73 m
2 was 1.64% (98/5,979) (95% CI 1.34–1.99). Additionally, 4,792(80.2%) were classified as normal eGFR (≥90 ml/min/1.73 m
2), 1,089(18.2%) as low eGFR (60–89 ml/min/1.73 m
2), 91(1.52%) as moderately reduced eGFR (30–59 ml/min/1.73 m
2), 4(0.07%) as severely reduced eGFR (15-29 ml/min/1.73 m
2), and 3(0.05%) classified as having kidney failure (eGFR<15 ml/min/1.73 m
2). When age-standardised to the WHO Standard Population the prevalence of eGFR<60 ml/min/1.73 m
2 was 1.79%. Age above 35 years and the presence of hypertension (OR 2.86, 95% CI 1.15-7.08) and anaemia (OR 2.14, 95% CI 1.12-4.09) were associated with eGFR<60 ml/min/1.73 m
2. Conclusion: In a systematic survey of people in rural Uganda, we found a substantial proportion had eGFR<60 ml/min/1.73 m
2. More population based studies are needed to further characterize kidney disease in sub-Saharan Africa.
Collapse
Affiliation(s)
- Robert Kalyesubula
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.,Department of Physiology, Makerere University College of Health Sciences, Kampala, Uganda.,Non-Communicable Disease Epidemiology, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Jeffrey P Hau
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
| | - Gershim Asiki
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.,African Population and Health Research Center, Nairobi, Kenya
| | - Billy Ssebunya
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
| | | | - Janet Seeley
- Global Health and Development Department, London School of Hygiene and Tropical Medicine, London, UK
| | - Liam Smeeth
- Non-Communicable Disease Epidemiology, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Laurie Tomlinson
- Non-Communicable Disease Epidemiology, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Robert Newton
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.,University of York, York, UK
| |
Collapse
|
30
|
Kalyesubula R, Hau JP, Asiki G, Ssebunya B, Kusemererwa S, Seeley J, Smeeth L, Tomlinson L, Newton R. Impaired renal function in a rural Ugandan population cohort. Wellcome Open Res 2019; 3:149. [PMID: 31223661 DOI: 10.12688/wellcomeopenres.14863.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2018] [Indexed: 12/28/2022] Open
Abstract
Background: Kidney disease is an important cause of morbidity and mortality globally. However, there are limited data on the prevalence of impaired kidney function in sub-Saharan Africa. We aimed to determine the prevalence of reduced kidney function and associated factors in a rural Ugandan population. Methods: We undertook a study of a representative sample of the General Population Cohort in South-western Uganda. We systematically collected data on cardiovascular disease risk factors, anthropometric measurements and blood tests including haemoglobin, HIV, HbA1c and serum creatinine. The estimated glomerular filtration rate (eGFR) was calculated using the CKD-Epi equation, without the race component of the equation. Results: A total of 5,979/6,397 (93.5%) participants had valid creatinine results. The mean age was 39 years (Range:16-103 years) and 3,627 (60.7%) were female. HIV prevalence was 9.7% and about 40% of the population were pre-hypertensive or hypertensive. The mean serum creatinine level was 0.75 mg/dl (95% CI 0.74-0.75), and the average eGFR was 109.3 ml/min/1.73 m 2 (95% CI 108.8-109.9). The overall prevalence of eGFR <60 ml/min/1.73 m 2 was 1.64% (98/5,979) (95% CI 1.34-1.99). Additionally, 4,792(80.2%) were classified as normal eGFR (≥90 ml/min/1.73 m 2), 1,089(18.2%) as low eGFR (60-89 ml/min/1.73 m 2), 91(1.52%) as moderately reduced eGFR (30-59 ml/min/1.73 m 2), 4(0.07%) as severely reduced eGFR (15-29 ml/min/1.73 m 2), and 3(0.05%) classified as having kidney failure (eGFR<15 ml/min/1.73 m 2). When age-standardised to the WHO Standard Population the prevalence of eGFR<60 ml/min/1.73 m 2 was 1.79%. Age above 35 years and the presence of hypertension (OR 2.86, 95% CI 1.15-7.08) and anaemia (OR 2.14, 95% CI 1.12-4.09) were associated with eGFR<60 ml/min/1.73 m 2. Conclusion: In a systematic survey of people in rural Uganda, we found a substantial proportion had eGFR<60 ml/min/1.73 m 2. More population based studies are needed to further characterize kidney disease in sub-Saharan Africa.
Collapse
Affiliation(s)
- Robert Kalyesubula
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.,Department of Physiology, Makerere University College of Health Sciences, Kampala, Uganda.,Non-Communicable Disease Epidemiology, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Jeffrey P Hau
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
| | - Gershim Asiki
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.,African Population and Health Research Center, Nairobi, Kenya
| | - Billy Ssebunya
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
| | | | - Janet Seeley
- Global Health and Development Department, London School of Hygiene and Tropical Medicine, London, UK
| | - Liam Smeeth
- Non-Communicable Disease Epidemiology, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Laurie Tomlinson
- Non-Communicable Disease Epidemiology, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Robert Newton
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.,University of York, York, UK
| |
Collapse
|
31
|
Kalyesubula R, Mutyaba I, Rabin T, Andia-Biraro I, Alupo P, Kimuli I, Nabirye S, Kagimu M, Mayanja-Kizza H, Rastegar A, Kamya MR. Trends of admissions and case fatality rates among medical in-patients at a tertiary hospital in Uganda; A four-year retrospective study. PLoS One 2019; 14:e0216060. [PMID: 31086371 PMCID: PMC6516645 DOI: 10.1371/journal.pone.0216060] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 04/14/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Sub-Saharan Africa suffers from a dual burden of infectious and non-communicable diseases. There is limited data on causes and trends of admission and death among patients on the medical wards. Understanding the major drivers of morbidity and mortality would help inform health systems improvements. We determined the causes and trends of admission and mortality among patients admitted to Mulago Hospital, Kampala, Uganda. METHODS AND RESULTS The medical record data base of patients admitted to Mulago Hospital adult medical wards from January 2011 to December 2014 were queried. A detailed history, physical examination and investigations were completed to confirm the diagnosis and identify comorbidities. Any histopathologic diagnoses were made by hematoxylin and eosin tissue staining. We identified the 10 commonest causes of hospitalization, and used Poisson regression to generate annual percentage change to describe the trends in causes of hospitalization. Survival was calculated from the date of admission to the date of death or date of discharge. Cox survival analysis was used to identify factors associate with in-hospital mortality. We used a statistical significance level of p<0.05. A total of 50,624 patients were hospitalized with a median age of 38 (range 13-122) years and 51.7% females. Majority of patients (72%) had an NCD condition as the primary reason for admission. Specific leading causes of morbidity were HIV/AIDS in 30% patients, hypertension in 14%, tuberculosis (TB) in 12%), non-TB pneumonia in11%) and heart failure in 9.3%. There was decline in the proportion of hospitalization due to malaria, TB and pneumonia with an annual percentage change (apc) of -20% to -6% (all p<0.03) with an increase in proportions of admissions due to chronic kidney disease, hypertension, stroke and cancer, with apc 13.4% to 24%(p<0.001). Overall, 8,637(17.1%) died during hospitalization with the highest case fatality rates from non-TB pneumonia (28.8%), TB (27.1%), stroke (26.8%), cancer (26.1%) and HIV/AIDS (25%). HIV-status, age above 50yrs and being male were associated with increased risk of death among patients with infections. CONCLUSION Admissions and case fatality rates for both infectious and non-infectious diseases were high, with declining trends in infectious diseases and a rising trend in NCDs. Health care systems in sub-Saharan region need to prepare to deal with dual burden of disease.
Collapse
Affiliation(s)
- Robert Kalyesubula
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
- * E-mail:
| | - Innocent Mutyaba
- Department of Medicine, Uganda Cancer Institute, Kampala, Uganda
| | - Tracy Rabin
- Department of Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Irene Andia-Biraro
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Patricia Alupo
- Department of Medicine, Makerere Lung Institute, Kampala, Uganda
| | - Ivan Kimuli
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Stella Nabirye
- Directorate of Medicine, Mulago National Referral Hospital, Kampala, Uganda
| | - Magid Kagimu
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Harriet Mayanja-Kizza
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Asghar Rastegar
- Department of Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Moses R. Kamya
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| |
Collapse
|
32
|
Prevalence and Predictors of Chronic Kidney Disease in a Semiurban Community in Lagos. Int J Nephrol 2019; 2019:1625837. [PMID: 31186960 PMCID: PMC6521561 DOI: 10.1155/2019/1625837] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 01/15/2019] [Accepted: 04/18/2019] [Indexed: 12/14/2022] Open
Abstract
Background and Objectives The prevalence of noncommunicable diseases like chronic kidney disease is on the rise in third-world countries. In Nigeria and most sub-Saharan African countries, there is dearth of community-based studies on prevalence and predictors of chronic kidney disease, prompting us to undertake this study. Materials and Methods This was a cross-sectional study, aimed at ascertaining the prevalence and predictors of chronic kidney disease (CKD) in a semiurban community in Lagos, Southwest Nigeria. The study's subjects were recruited from Agbowa community in Ikosi-Ejirin Local Council Development Area of Lagos state. The community was randomly selected. Questionnaires were used to obtain relevant information from the subjects. Body mass index, anthropometric measurements, and other relevant data were also collected. Results CKD was observed in 30 subjects given prevalence of 7.5% in the community. Nine out of the 30 subjects (30%) with CKD were males, while 21 (70%) subjects were females. The prevalence of CKD was significantly higher in the female population. 28 of the subjects with CKD were in stage 3, while 2 of the subjects with CKD were in stage 4. Age, hypertension, and hyperuricemia were significantly associated with CKD. Using multiple logistic regression analysis, 4 variables predicted CKD in the study population. These were age (P =0.01, OR = 0. 274, CI = 0.102 - 0.739), hypertension (p = 0.011, OR = 0. 320, CI = 0.132 - 0.773), hyperuricemia (p=0.001, OR = 0.195, CI =0.083 - 0.461), and female sex (p = 0.009, OR = 3.775, CI = 1.401 - 10.17). Conclusion The prevalence of CKD in the population is low compared with other studies from other parts of the country, and the predictors included age, hypertension, hyperuricemia, and female gender. This is the first community-based study in Nigeria to identify hyperuricemia as a risk factor for chronic kidney disease in the country.
Collapse
|
33
|
Abstract
PURPOSE OF REVIEW Human immunodeficiency virus (HIV)-associated nephropathy (HIVAN) was identified as the major renal manifestation of HIV infection early in the HIV epidemic. However, HIV infection now is associated with a different spectrum of renal lesions leading to chronic kidney disease. This review examines the changes in kidney injury occurring in the current HIV era and the factors involved in this transformation of disease expression. RECENT FINDINGS The incidence of HIVAN and opportunistic infections in HIV-infected individuals has declined in concert with the use of effective combination antiretroviral agents. Chronic kidney disease has become more prevalent as patients infected with HIV are living longer and developing non-HIV-associated diseases such as hypertension and diabetes. Additionally, noncollapsing focal and segmental glomerulosclerosis, co-infection with hepatitis C, HIV-associated immune complex kidney disease, HIV-related accelerated aging, and antiretroviral therapies contribute to progressive loss of renal function. SUMMARY HIV infection is now associated with a variety of renal lesions causing chronic kidney disease, not all of which are virally induced. It is important to determine the cause of renal functional decline in an HIV-infected patient, as this will impact patient management and prognosis.
Collapse
|
34
|
Kalyesubula R, Hau JP, Asiki G, Ssebunya B, Kusemererwa S, Seeley J, Smeeth L, Tomlinson L, Newton R. Impaired renal function in a rural Ugandan population cohort. Wellcome Open Res 2019; 3:149. [DOI: 10.12688/wellcomeopenres.14863.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2018] [Indexed: 11/20/2022] Open
Abstract
Background:Kidney disease is an important cause of morbidity and mortality globally. However, there are limited data on the prevalence of impaired kidney function in sub-Saharan Africa. We aimed to determine the prevalence of reduced kidney function and associated factors in a rural Ugandan population.Methods:We undertook a study of a representative sample of the General Population Cohort in South-western Uganda. We systematically collected data on cardiovascular disease risk factors, anthropometric measurements and blood tests including haemoglobin, HIV, HbA1c and serum creatinine. The estimated glomerular filtration rate (eGFR) was calculated using the CKD-Epi formula, without the race component of the equation.Results:A total of 5,979/6,397 (93.5%) participants had valid creatinine results. The mean age was 39 years (Range: 16-103 years) and 3,627 (60.7%) were female. HIV prevalence was 9.7% and about 40% of the population were pre-hypertensive or hypertensive. The mean serum creatinine level was 0.75 mg/dl (95% CI 0.74–0.75), and the average eGFR was 109.3 ml/min/1.73 m2(95% CI 108.8–109.9). The overall prevalence of eGFR <60 ml/min/1.73 m2was 1.64% (98/5,979) (95% CI 1.34–1.99). Additionally, 4,792 (80.2%) were classified as normal eGFR (≥90 ml/min/1.73 m2), 1,089 (18.2%) as low eGFR (60–89 ml/min/1.73 m2), 91 (1.52%) as moderately reduced eGFR (30–59 ml/min/1.73 m2), 4 (0.07%) as severely reduced eGFR (15-29 ml/min/1.73 m2), and 3 (0.05%) classified as having kidney failure (eGFR <15 ml/min/1.73 m2). When age-standardised to the WHO Standard Population the prevalence of eGFR<60 ml/min/1.73 m2was 1.79%. Age above 35 years and the presence of hypertension (OR 2.86, 95% CI 1.15-7.08) and anaemia (OR 2.14, 95% CI 1.12-4.09) were associated with eGFR<60 ml/min/1.73 m2.Conclusion:In a systematic survey of people in rural Uganda, we found a substantial proportion had eGFR<60 ml/min/1.73 m2, and this was strongly associated with high blood pressure and anaemia.
Collapse
|
35
|
Hodel NC, Hamad A, Praehauser C, Mwangoka G, Kasella IM, Reither K, Abdulla S, Hatz CFR, Mayr M. The epidemiology of chronic kidney disease and the association with non-communicable and communicable disorders in a population of sub-Saharan Africa. PLoS One 2018; 13:e0205326. [PMID: 30379902 PMCID: PMC6209178 DOI: 10.1371/journal.pone.0205326] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 09/24/2018] [Indexed: 01/08/2023] Open
Abstract
In sub-Saharan Africa (SSA), epidemiological data for chronic kidney disease (CKD) are scarce. We conducted a prospective cross-sectional study including 952 patients in an outpatient clinic in Tanzania to explore CKD prevalence estimates and the association with cardiovascular and infectious disorders. According to KDIGO, we measured albumin-to-creatinine ratio and calculated eGFR using CKD-EPI formula. Factors associated with CKD were calculated by logistic regression. Venn diagrams were modelled to visualize interaction between associated factors and CKD. Overall, the estimated CKD prevalence was 13.6% (95% CI 11-16%). Ninety-eight patients (11.2%) (95% CI 9-14%) were categorized as moderate, 12 (1.4%) (95% CI 0-4%) as high, and 9 (1%) (95% CI 0-3%) as very high risk according to KDIGO. History of tuberculosis (OR 3.75, 95% CI 1.66-8.18; p = 0.001) and schistosomiasis (OR 2.49, 95% CI 1.13-5.18; p = 0.02) were associated with CKD. A trend was seen for increasing systolic blood pressure (OR 1.02 per 1 mmHg, 95% CI 1.00-1.03; p = 0.01). Increasing BMI (OR 0.92 per 1kg/m2, 95% CI 0.88-0.96; p = <0.001) and haemoglobin (OR 0.82 per 1g/dL, 95% CI 0.72-0.94; p = 0.004) were associated with risk reduction. Diabetes was associated with albuminuria (OR 2.81, 95% CI 1.26-6.00; p = 0.009). In 85% of all CKD cases at least one of the four most common factors (hypertension, diabetes, anaemia, and history of tuberculosis or schistosomiasis) was associated with CKD. A singular associated factor was found in 61%, two in 14%, and ≥3 in 10% of all CKD cases. We observed a high prevalence estimate for CKD and found that both classical cardiovascular and neglected infectious diseases might be associated with CKD in a semi-rural population of SSA. Our finding provides further evidence for the hypothesis that the "double burden" of non-communicable and endemic infectious diseases might affect kidney health in SSA.
Collapse
Affiliation(s)
- Nikolai C. Hodel
- Medical Outpatient Department, University Hospital Basel, Basel, Switzerland
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Ali Hamad
- Ifakara Health Institute, Dar es Salaam/Bagamoyo, Tanzania
| | - Claudia Praehauser
- Medical Outpatient Department, University Hospital Basel, Basel, Switzerland
| | - Grace Mwangoka
- Ifakara Health Institute, Dar es Salaam/Bagamoyo, Tanzania
| | | | - Klaus Reither
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- Ifakara Health Institute, Dar es Salaam/Bagamoyo, Tanzania
- University of Basel, Basel, Switzerland
| | - Salim Abdulla
- Ifakara Health Institute, Dar es Salaam/Bagamoyo, Tanzania
| | - Christoph F. R. Hatz
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Michael Mayr
- Medical Outpatient Department, University Hospital Basel, Basel, Switzerland
| |
Collapse
|
36
|
Namuyimbwa L, Atuheire C, Okullo J, Kalyesubula R. Prevalence and associated factors of protein- energy wasting among patients with chronic kidney disease at Mulago hospital, Kampala-Uganda: a cross-sectional study. BMC Nephrol 2018; 19:139. [PMID: 29902980 PMCID: PMC6003131 DOI: 10.1186/s12882-018-0920-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 05/15/2018] [Indexed: 12/04/2022] Open
Abstract
Background Chronic kidney disease (CKD) is global health concern and priority. It is the 12th leading cause of death worldwide. Protein Energy Wasting occurs in 20–25% of patients with chronic kidney disease and can lead to a high morbidity and mortality rate. We determined the prevalence of protein energy wasting and factors associated among patients with chronic kidney disease at Mulago National Referral Hospital, Kampala, Uganda. Methods We conducted a cross-sectional study recruiting 182 (89 non-CKD patients and 93 CKD patients) consecutively from the outpatient clinic and wards on New Mulago Hospital complex. We took anthropometric measurements including heights, weights, Triceps skin fold (TSF), Mid- Upper Arm circumference (MUAC), Body Mass Index (BMI) and Mid-arm muscle circumference (MAMC). Serum albumin levels and lipid profile levels were also obtained. Following consent of study participants, Data was collected using questionnaires and analyzed using STATA 14.1. Percentages, frequencies, means, medians, standard deviation and interquartile range were used to summarise data. Crude and adjusted binary logistic regression was performed to assess unadjusted and adjusted effect measures of protein energy wasting due to several factors. Stratification by CKD status was performed during the analysis to minimize confounding. Results The median age for CKD patients was 39 years compared to 27 years for non-CKD participants (p < 0.001). The prevalence of protein energy wasting (PEW) was 68.6% in this study with 47.3 and 21.3% among CKD and non-CKD participants respectively. Factors which were associated with PEW included CKD age between 18 and 24, being single, catholic religion, CKD stage 4, Hb < 11.5 g/dl and LDL > 160 mg/dl. Conclusion Protein energy Wasting is prevalent among patients with chronic kidney disease and clinicians should routinely screen for it during patient care. Electronic supplementary material The online version of this article (10.1186/s12882-018-0920-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Lydia Namuyimbwa
- Department of Physiology, College of Health Sciences, School of Biomedical sciences, Makerere University, P.O Box 7076, Kampala, Uganda.
| | - Collins Atuheire
- Department of Biosecurity, Ecosystems and Veterinary Public Health, College of Veterinary Medicine, Animal Resources and Biosecurity (BEP), Makerere University, Kampala, Uganda.,Department of Public Health, School of Allied Health Sciences, Kampala International University, Bushenyi, Kampala, Uganda
| | - Joel Okullo
- Department of Physiology, College of Health Sciences, School of Biomedical sciences, Makerere University, P.O Box 7076, Kampala, Uganda
| | - Robert Kalyesubula
- Department of Physiology, College of Health Sciences, School of Biomedical sciences, Makerere University, P.O Box 7076, Kampala, Uganda
| |
Collapse
|
37
|
Chukwuonye II, Ogah OS, Anyabolu EN, Ohagwu KA, Nwabuko OC, Onwuchekwa U, Chukwuonye ME, Obi EC, Oviasu E. Prevalence of chronic kidney disease in Nigeria: systematic review of population-based studies. Int J Nephrol Renovasc Dis 2018; 11:165-172. [PMID: 29861638 PMCID: PMC5968792 DOI: 10.2147/ijnrd.s162230] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The aim of this study was to identify and discuss published population-based studies carried out in Nigeria that have information on the prevalence of chronic kidney disease (CKD) and have also used the Kidney Disease Outcomes Quality Initiative (KDOQI) practice guidelines in defining CKD, with emphasis on the performance of three estimating equations for glomerular filtration rate (GFR) – Modification of Diet in Renal Disease (MDRD), Cock-croft–Gault, and CKD epidemiology collaboration (CKD-EPI) creatinine equation. Materials and methods A systematic literature search was carried out in Google, MEDLINE, PubMed, and AJOL database, with the aim of identifying relevant population-based studies with information on the prevalence of CKD in a location in Nigeria. Results Seven cross-sectional population-based studies were identified. Two of the studies used the Cockcroft–Gault and observed a prevalence of 24.4% and 26%. Four of the studies used the MDRD and the prevalences observed were 12.3%, 14.2%, 2.5%, and 13.4%. One of the studies used the CKD-EPI equation and the prevalence was 11.4%. The male to female ratios of CKD prevalence in six studies were 1:1.9, 0.8:1, 1:1.6, 1:2, 1:1.8, 1:1.4, and the observed risk factors in the studies were old age, obesity, diabetes mellitus, hypertension, family history of hypertension, family history of renal disease, low-income occupation, use of traditional medication, low hemoglobin, and abdominal obesity. Conclusion The prevalence of CKD was high but variable in Nigeria, influenced by the equation used to estimate the GFR. MDRD and CKD-EPI results are agreeable. There is a need for more population-based studies, with emphasis on repeating the GFR estimation after 3 months in subjects with GFR <60 mL/min/1.7 m2.
Collapse
Affiliation(s)
| | - Okechukwu Samuel Ogah
- Division of Cardiology, Department of Internal Medicine, University College Hospital Ibadan, Oyo State
| | - Ernest Ndukaife Anyabolu
- Division of Nephrology, Department of Internal Medicine, Chukwuemeka Odumegwu Ojukwu University Teaching Hospital Awka, Anambra State
| | - Kenneth Arinze Ohagwu
- Division of Nephrology, Department of Internal Medicine, Federal Medical Centre, Umuahia, Abia State
| | | | - Uwa Onwuchekwa
- Division of Nephrology, Department of Internal Medicine, Abia State University Teaching Hospital, Aba
| | | | - Emmanuel Chukwuebuka Obi
- Division of Nephrology, Department of Internal Medicine, Federal Medical Centre, Umuahia, Abia State
| | - Efosa Oviasu
- Division of Nephrology, Department of Internal Medicine, University of Benin Teaching Hospital, Benin City, Nigeria
| |
Collapse
|
38
|
Abd ElHafeez S, Bolignano D, D’Arrigo G, Dounousi E, Tripepi G, Zoccali C. Prevalence and burden of chronic kidney disease among the general population and high-risk groups in Africa: a systematic review. BMJ Open 2018; 8:e015069. [PMID: 29326180 PMCID: PMC5780690 DOI: 10.1136/bmjopen-2016-015069] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 08/25/2017] [Accepted: 09/01/2017] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES While increasing attention is paid to the rising prevalence of chronic diseases in Africa, there is little focus on chronic kidney disease (CKD). This systematic review assesses CKD burden among the general population and high-risk groups on the entire African continent. DESIGN, SETTING AND PARTICIPANTS We searched Medline and PubMed databases for articles published between 1 January 1995 and 7 April 2017 by sensitive search strategies focusing on CKD surveys at the community level and high-risk groups. In total, 7918 references were evaluated, of which 7766 articles were excluded because they did not meet the inclusion criteria. Thus, 152 studies were included in the final analysis. OUTCOME MEASUREMENT The prevalence of CKD in each study group was expressed as a range and pooled prevalence rate of CKD was calculated as a point estimate and 95% CI. No meta-analysis was done. Data were presented for different populations. RESULTS In the community-level studies, based on available medium-quality and high-quality studies, the prevalence of CKD ranged from 2% to 41% (pooled prevalence: 10.1%; 95% CI 9.8% to 10.5%). The prevalence of CKD in the high-risk groups ranged from 1% to 46% (pooled prevalence: 5.6%; 95% CI 5.4% to 5.8%) in patients with HIV (based on available medium-quality and high-quality studies), 11%-90% (pooled prevalence: 24.7%; 95% CI 23.6% to 25.7%) in patients with diabetes (based on all available studies which are of low quality except four of medium quality) and 13%-51% (pooled prevalence: 34.5%; 95 % CI 34.04% to 36%) in patients with hypertension (based on all available studies which are of low quality except two of medium quality). CONCLUSION In Africa, CKD is a public health problem, mainly attributed to high-risk conditions as hypertension and diabetes. The poor data quality restricts the validity of the findings and draws the attention to the importance of designing future robust studies.
Collapse
Affiliation(s)
- Samar Abd ElHafeez
- Department of Epidemiology, High Institute of Public Health – Alexandria University, Alexandria, Egypt
| | - Davide Bolignano
- Clinical Epidemiology of Renal Diseases and Hypertension, Reggio Cal Unit, CNR/IFC, Reggio Calabria, Italy
| | - Graziella D’Arrigo
- Clinical Epidemiology of Renal Diseases and Hypertension, Reggio Cal Unit, CNR/IFC, Reggio Calabria, Italy
| | - Evangelia Dounousi
- Department of Nephrology, School of Health Sciences – University of Ioannina, Ioannina, Greece
| | - Giovanni Tripepi
- Clinical Epidemiology of Renal Diseases and Hypertension, Reggio Cal Unit, CNR/IFC, Reggio Calabria, Italy
| | - Carmine Zoccali
- Clinical Epidemiology of Renal Diseases and Hypertension, Reggio Cal Unit, CNR/IFC, Reggio Calabria, Italy
| |
Collapse
|
39
|
Stanifer JW, Karia F, Maro V, Kilonzo K, Qin X, Patel UD, Hauser ER. APOL1 risk alleles among individuals with CKD in Northern Tanzania: A pilot study. PLoS One 2017; 12:e0181811. [PMID: 28732083 PMCID: PMC5521837 DOI: 10.1371/journal.pone.0181811] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 07/09/2017] [Indexed: 01/13/2023] Open
Abstract
INTRODUCTION In sub-Saharan Africa, approximately 100 million people have CKD, yet genetic risk factors are not well-understood. Despite the potential importance of understanding APOL1 risk allele status among individuals with CKD, little genetic research has been conducted. Therefore, we conducted a pilot study evaluating the feasibility of and willingness to participate in genetic research on kidney disease, and we estimated APOL1 risk allele frequencies among individuals with CKD. METHODS In 2014, we conducted a community-based field study evaluating CKD epidemiology in northern Tanzania. We assessed for CKD using urine albumin and serum creatinine to estimate GFR. We invited participants with CKD to enroll in an additional genetic study. We obtained dried-blood spots on filter cards, from which we extracted DNA using sterile punch biopsies. We genotyped for two single nucleotide polymorphisms (SNPs) defining the APOL1 G1 risk allele and an insertion/deletion polymorphism defining the G2 risk allele. Genotyping was performed in duplicate. RESULTS We enrolled 481 participant, 57 (12%) of whom had CKD. Among these, enrollment for genotyping was high (n = 48; 84%). We extracted a median of 19.4 ng of DNA from each dried-blood spot sample, and we genotyped the two APOL1 G1 SNPs and the APOL1 G2 polymorphism. Genotyping quality was high, with all duplicated samples showing perfect concordance. The frequency of APOL1 risk variants ranged from 7.0% to 11.0%, which was similar to previously-reported frequencies from the general population of northern Tanzania (p>0.2). DISCUSSION In individuals with CKD from northern Tanzania, we demonstrated feasibility of genotyping APOL1 risk alleles. We successfully genotyped three risk variants from DNA extracted from filter cards, and we demonstrated a high enrollment for participation. In this population, more extensive genetic studies of kidney disease may be well-received and will be feasible.
Collapse
Affiliation(s)
- John W. Stanifer
- Department of Medicine, Duke University; Durham, NC United States of America
- Duke Global Health Institute, Duke University; Durham, NC United States of America
- Duke Clinical Research Institute, Duke University; Durham, NC United States of America
| | - Francis Karia
- Kilimanjaro Christian Medical College; Moshi, Tanzania
| | - Venance Maro
- Kilimanjaro Christian Medical College; Moshi, Tanzania
| | | | - Xuejun Qin
- Duke Molecular Physiology Institute, Duke University School of Medicine; Durham NC United States of America
| | - Uptal D. Patel
- Department of Medicine, Duke University; Durham, NC United States of America
| | - Elizabeth R. Hauser
- Department of Medicine, Duke University; Durham, NC United States of America
- Duke Molecular Physiology Institute, Duke University School of Medicine; Durham NC United States of America
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine; Durham, NC United States of America
| |
Collapse
|