Dike B. Ojji

Dr. Dike B. Ojji

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 November 2021 in PLOS Global Public Health
Verified
Journal Article
Open access
PDF file
WAWhenayon Simeon Ajisegiri
Whenayon Simeon Ajisegiri
SASeye Abimbola
Seye Abimbola
ATAzeb Tesema
Azeb Tesema
OOOlumuyiwa O. Odusanya
Olumuyiwa O. Odusanya
DODike B. Ojji
Dike B. Ojji
RJRohina Joshi
Rohina Joshi
Noncommunicable diseases (NCDs) are leading causes of death globally and in Nigeria they account for 29% of total deaths. Nigeria’s health system is decentralized. Fragmentation in governance in federalised countries with decentralised health systems is a well-recognised challenge to coherent national health policymaking. The policy response to the rising NCD burden therefore requires strategic intent by national and sub-national governments. This study aimed to understand the implementation of NCD policies in Nigeria, the role of decentralisation of those policies, and to consider the implications for achieving national NCD targets. We conducted a policy analysis combined with key informant interviews to determine to what extent NCD policies and strategies align with Nigeria’s decentralised health system; and the structure and process within which implementation occurs across the various tiers of government. Four inter-related findings emerged: NCD national policies are ‘top down’ in focus and lack attention to decentralisation to subnational and frontline care delivery levels of the health system; there are defective coordination mechanisms for NCD programmes which are underpinned by weak regional organisational structures; financing for NCDs are administratively burdensome and fragmented; and frontline NCD service delivery for NCDs are not effectively being integrated with other essential PHC services. Despite considerable progress being made with development of national NCD policies, greater attention on their implementation at subnational levels is needed to achieve more effective service delivery and progress against national NCD targets. We recommend strengthening subnational coordination mechanisms, greater accountability frameworks, increased and more efficient funding, and greater attention to integrated PHC service delivery models. The use of an effective bottom-up approach, with consideration for decentralization, should also be engaged at all stages of policy formulation.

31 August 2024 in JACC
Verified
Journal Article
Closed access
ARAnthony Rodgers
Anthony Rodgers
ASAbdul Salam
Abdul Salam
ASAletta E. Schutte
Aletta E. Schutte
WCWilliam C. Cushman
William C. Cushman
HSH. Asita de Silva
H. Asita de Silva
PWPaul Whelton
Paul Whelton

20 June 2025 in Circulation Research
Verified
Journal Article
Open access
MJModou Jobe
Modou Jobe
SBSerigne Mor Beye
Serigne Mor Beye
NGNgoné Diaba Gaye
Ngoné Diaba Gaye
MKMame Madjiguene Ka
Mame Madjiguene Ka
PPPablo Perel
Pablo Perel
BGBamba Gaye
Bamba Gaye
The burden of hypertension is rising rapidly in sub-Saharan Africa (SSA), posing significant health challenges and economic costs that hinder national development. Despite being well-studied in clinical medicine, the detection, treatment, and control of hypertension in SSA remain inadequate. This is due to barriers across the care continuum, including individual-, provider-, and system-level obstacles within the health system. A critical issue is the lack of contextualized mechanistic research to understand the mechanisms, phenotypes, and treatment responses in native SSA populations. Current treatment approaches are often based on data from diaspora Africans, particularly African Americans. Consequently, most guidelines do not recommend angiotensin system drugs as first-line agents for Black patients, a stance that should be reconsidered given some evidence of their effectiveness in native SSA populations. Addressing these barriers requires a comprehensive, multisectoral strategy that includes both preventative and clinical measures at the population and individual levels. Preventative approaches should encompass health and nutrition education, improving food supply quality, and implementing comprehensive transportation and environmental policies. In addition, strategies should be developed to increase the detection of undiagnosed cases through enhanced screening and treatment access to those not receiving care, and revisit current treatment approaches to ensure that they are more tailored to the specific populations and settings. In conclusion, innovative strategies are needed to identify and overcome barriers to hypertension diagnosis and management. A coordinated, multisectoral approach that includes a contextualized mechanistic research agenda, as well as task shifting and task sharing, will help prevent and reduce hypertension in SSA.

12 April 2022 in Global Heart
Verified
Journal Article
Open access
PDF file
JCJennifer Cohn
Jennifer Cohn
HBHelen Bygrave
Helen Bygrave
TRTeri Roberts
Teri Roberts
TKTaskeen Khan
Taskeen Khan
DODike B. Ojji
Dike B. Ojji
POPedro Ordunez
Pedro Ordunez
Hypertension is the most important risk factor for cardiovascular diseases (CVDs), which are the leading global cause of death. Hypertension is under-diagnosed and under-treated in most low- and middle-income countries (LMICs). Current algorithms for hypertension treatment are complex for the healthcare worker, limit decentralization, complicate procurement and often translate to a large pill burden for the person with hypertension. We summarize evidence supporting implementation of simple, algorithmic, accessible, non-toxic and effective (SAANE) algorithms to provide a feasible way to access and maintain quality care for hypertension. Implementation of these algorithms will enable task shifting to less specialised health care workers and lay cadres, provision of fixed dose combinations, consolidation of the market while retaining generic competition, simplification of laboratory requirements, and lowering costs for health systems and people who incur out of pocket expenses.

15 January 2022 in Journal Of Hypertension
Verified
Journal Article
Open access
DODike B. Ojji
Dike B. Ojji
ABAbigail S. Baldridge
Abigail S. Baldridge
IOIkechukwu A. Orji
Ikechukwu A. Orji
GSGabriel L. Shedul
Gabriel L. Shedul
TOTunde M. Ojo
Tunde M. Ojo
MHMark D. Huffman
Mark D. Huffman
Background: There are limited data on large-scale, multilevel implementation research studies to improve hypertension diagnosis, treatment, and control rates at the primary healthcare (PHC) level in Africa. We describe the characteristics, treatment, and control rates of patients with hypertension in public PHC centers in the Hypertension Treatment in Nigeria Program. Methods: Data were collected from adults at least 18 years at 60 public PHC centers between January 2020 and November 2020. Hypertension treatment rates were calculated at registration and upon completion of the initial visit. Hypertension control rates were calculated based on SBP and DBPs less than 140/90 mmHg. Regression models were created to evaluate factors associated with hypertension treatment and control status. Results: Four thousand, nine hundred and twenty-seven individuals [66.7% women, mean (SD) age = 48.2 (12.9) years] were included. Mean (SD) SBP was higher in men compared with women [152.9 (20.0) mmHg versus 150.8 (21) mmHg, P = 0.001]. Most (58.3%) patients were on treatment at the time of registration, and by the end of the baseline visit, 89.2% of patients were on treatment. The baseline hypertension control rate was 13.1%, and control was more common among patients who were older [adjusted OR (95% CI) 1.01 [1.01 –1.02)], women [adjusted OR (95% CI) 1.30 (1.05– 1.62)], who used fixed dose combination therapy [adjusted OR (95% CI) 1.83 (1.49 –2.26)], and had higher education levels. Conclusion: This baseline report of the largest facility-based hypertension study in Africa demonstrates high hypertension treatment rates but low control rates.

15 June 2022 in Global Heart
Verified
Journal Article
Open access
PDF file
DPDorairaj Prabhakaran
Dorairaj Prabhakaran
KSKavita P. Singh
Kavita P. Singh
DKDimple Kondal
Dimple Kondal
LRLana Raspail
Lana Raspail
BMBishav Mohan
Bishav Mohan
OCOn Behalf of the WHF COVID-19 Study Collaborators
On Behalf of the WHF COVID-19 Study Collaborators
Background and aims: Limited data exist on the cardiovascular manifestations and risk factors in people hospitalized with COVID-19 from low- and middle-income countries. This study aims to describe cardiovascular risk factors, clinical manifestations, and outcomes among patients hospitalized with COVID-19 in low, lower-middle, upper-middle- and high-income countries (LIC, LMIC, UMIC, HIC).Methods: Through a prospective cohort study, data on demographics and pre-existing conditions at hospital admission, clinical outcomes at hospital discharge (death, major adverse cardiovascular events (MACE), renal failure, neurological events, and pulmonary outcomes), 30-day vital status, and re-hospitalization were collected. Descriptive analyses and multivariable log-binomial regression models, adjusted for age, sex, ethnicity/income groups, and clinical characteristics, were performed.Results: Forty hospitals from 23 countries recruited 5,313 patients with COVID-19 (LIC = 7.1%, LMIC = 47.5%, UMIC = 19.6%, HIC = 25.7%). Mean age was 57.0 (±16.1) years, male 59.4%, pre-existing conditions included: hypertension 47.3%, diabetes 32.0%, coronary heart disease 10.9%, and heart failure 5.5%. The most frequently reported cardiovascular discharge diagnoses were cardiac arrest (5.5%), acute heart failure (3.8%), and myocardial infarction (1.6%). The rate of in-hospital deaths was 12.9% (N = 683), and post-discharge 30 days deaths was 2.6% (N = 118) (overall death rate 15.1%). The most common causes of death were respiratory failure (39.3%) and sudden cardiac death (20.0%). The predictors of overall mortality included older age (≥60 years), male sex, pre-existing coronary heart disease, renal disease, diabetes, ICU admission, oxygen therapy, and higher respiratory rates (p < 0.001 for each). Compared to Caucasians, Asians, Blacks, and Hispanics had almost 2–4 times higher risk of death. Further, patients from LIC, LMIC, UMIC versus. HIC had 2–3 times increased risk of death.Conclusions: The LIC, LMIC, and UMIC’s have sparse data on COVID-19. We provide robust evidence on COVID-19 outcomes in these countries. This study can help guide future health care planning for the pandemic globally.