Stewart Ngasa

Dr. Stewart Ngasa

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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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9 June 2017 in BMC Psychiatry
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Journal Article
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SNStewart Ngasa
Stewart Ngasa
CSCarlson-Babila Sama
Carlson-Babila Sama
BDBonaventure Suiru Dzekem
Bonaventure Suiru Dzekem
KNKilton Neba Nforchu
Kilton Neba Nforchu
MTMaxime Tindong
Maxime Tindong
CDChristian Akem Dimala
Christian Akem Dimala
Depression is an important contributor to the global burden disease that affects people of communities all over the world. With high level of demands in academics and psychosocial pressure, medical students during their course of training tend to become depressed, leading to problems later in professional life and compromising patient care. In Cameroon, there is lack of data on the prevalence of depression and its impact on medical students. To determine the prevalence and predisposing factors associated with depression among medical students in Cameroon (preclinical and clinical). We also evaluated the impact of depression on self-reported academic performance. A cross sectional study was carried out in all 4 state medical schools in 4 different regions from December 2015 to January 2016. Diagnosis of depression, major depression and its associated factors were assessed using the 9-Item-Patient Health Questionnaire (PHQ-9) and a structured questionnaire respectively. We included 618 medical students (response rate: 90.4%). About a third of them (30.6%, 95% CI: 22.8–36.7) were found to have major depressive disorder (PHQ Score ≥ 10). With regards to the severity of depression, 214 (34.6%), 163 (26.4%), 21 (3.4%), and 5 (0.80%) students were classified as having mild, moderate, moderately severe and severe depression respectively. The presence of a chronic disease (OR: 3.70, 95% CI: 1.72–7.94, p = 0.001), major life events (OR: 2.17, 95%CI: 1.32–3.58, P = 0.002), female gender (OR: 1.59, 95% CI: 1.06–2.37, p = 0.024) and being a student at the clinical level (OR: 4.26, 95% CI: 2.71–6.71, p < 0.001) were independently associated with depression. There was no association between depression and self-reported academic performance, (OR: 1.2, 95% CI: 0.9–1.7, p = 0.080). The prevalence of major depressive disorders among medical students in Cameroon is high and is associated with the presence chronic disease, major life events, female gender and being a student at the clinical level. So we recommend clinicians attending to medical students with demographic features suggestive of greater risk of depression, to make an in depth investigation on the possible presence of depression. Despite this high prevalence of major depression among medical students, it was not associated with self-reported academic performance.

2 December 2021 in PLOS ONE
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Journal Article
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SNStewart Ngasa
Stewart Ngasa
LTLeticia Armelle Sani Tchouda
Leticia Armelle Sani Tchouda
CAChristabel Abanda
Christabel Abanda
NNNeh Chang Ngasa
Neh Chang Ngasa
ESEric Wah Sanji
Eric Wah Sanji
CBCarlson-Sama Babila
Carlson-Sama Babila
Studies assessing the mental health of patients with COVID-19 infection remain limited. Disasters and major emergencies, not just COVID-19, undoubtedly lead to greater incidence of mental health problems. Previous studies indicate that the novel Coronavirus disease can cause panic and stress in patients. Our literature search didn’t reveal any previous published data from Cameroon and the Central African sub-region. In order to bridge this gap, we assessed the prevalence and factors associated with depression and anxiety in COVID-19 patients. We carried out a cross-sectional study in a secondary hospital in the Littoral Region of Cameroon. We recruited hospitalised COVID-19 patients during a 4-month period. We collected data on sociodemographic characteristics. The HADS score was used to assess levels of anxiety and depression. All analysis were done using Stata 14. A P value of <0.05 was used as the cut-off for statistical significance. A total number of 285 patients took part in this study with a mean age of 48.47 years. The prevalence of anxiety in COVID-19 patients was 60.35% while the prevalence of depression was 81.40%. At multivariate logistic regression male gender (OR: 1.89, P = 0.04), hypoxaemia (OR: 2.20, P = 0.01), presence of COVID-19 complications (OR: 1.61, P = 0.02) and current episode of depression (OR: 4.14, P 35 years (OR:2.03, P = 0.02), presence of comorbidity (OR: 1.68, P = 0.01), BMI > = 30kg/m2 (OR: 1.78, P = 0.02), presence of COVID-19 complications (OR: 1.28, P = 0.01) and anxiety (OR: 4.60, P<0.001) were independently associated with depression. Hospitalised patients with COVID-19 experienced high levels of anxiety and depression. Treatment of hospitalised patients with COVID-19 should therefore include psychotherapy and psychiatric support.

6 December 2017 in Systematic Reviews
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Journal Article
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CSCarlson-Babila Sama
Carlson-Babila Sama
SNStewart Ngasa
Stewart Ngasa
BDBonaventure Suiru Dzekem
Bonaventure Suiru Dzekem
SCSimeon Pierre Choukem
Simeon Pierre Choukem
Several studies have reported on factors influencing adolescent pregnancies and the associated outcomes, but evidence from a systematic review is limited, especially in sub-Saharan Africa where the greater burden lies. Establishment of accurate epidemiological data on the rates of adolescent pregnancy, its predictors, and adverse outcomes (maternal and neonatal) may have important implications towards attainment of the Sustainable Development Goals. This will be a systematic review of studies reporting predictors of adolescent pregnancy and adverse outcomes in sub-Saharan Africa published between January 2000 and December 2017. The following databases will be searched: PubMed/MEDLINE, Excerpta Medica Database (EMBASE), SCOPUS, Popline, Africa Wide Information, African Index Medicus, Google scholar and the Cochrane library. Three authors will independently screen all potential articles for eligibility as guided by the selection criteria. The Stata statistical software will be used in analysing the data. Appropriate meta-analytic techniques will be used to pool prevalence estimates from studies with similar features, overall and by major subgroups as warranted. Heterogeneity of studies will be evaluated by the χ 2 test on Cochrane’s Q statistic. Publication bias will be sorted for using funnel plot analysis and Egger’s test. Qualitative synthesis will be used where data are insufficient to produce a quantitative synthesis. This protocol is reported according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols (PRISMA-P) 2015 guidelines. This systematic review and meta-analysis is expected to serve as a template for designing adolescent-friendly preventive and control programmes to help curb the ever-growing burden of adolescent pregnancies, and as a guide for future research. PROSPERO CRD42017070773

8 May 2017 in BMC Research Notes
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DADesmond Aroke
Desmond Aroke
DTDiego Nitcheu Tchouakam
Diego Nitcheu Tchouakam
AAAlexis Tazinya Awungia
Alexis Tazinya Awungia
SMSylvester Yari Mapoh
Sylvester Yari Mapoh
SNStewart Ngasa
Stewart Ngasa
BKBenjamin Momo Kadia
Benjamin Momo Kadia
Stevens–Johnson syndrome is one of the manifestations of mucocutaneous adverse drug reactions. Although antimicrobials are responsible for greater than 50% of these adverse drug reactions, there is no documented case implicating ivermectin as the culprit. A 38 year old adult Cameroonian male presented to our health facility with facial rash, painful oral sores, black eschars on lips and red tearing eyes 3 days following ingestion of ivermectin received during a nationwide anti-filarial campaign. He had no known chronic illness, no known allergies and was not on any medications prior to the campaign. Physical examination revealed discharging erythematous eyes, crusted and blister-like lesions with cracks on his lips and oral mucosa. His laboratory tests were unremarkable but for a positive Human Immunodeficiency Virus (HIV) test. A diagnosis of Ivermectin induced Stevens–Johnson syndrome in a newly diagnosed HIV patient was made. The patient was managed with supportive therapy and the evolution thereafter was favourable. Stevens–Johnson syndrome is a potential side effect of ivermectin and susceptibility to this adverse effect may be increased in HIV infection.

21 June 2022 in Pan African Medical Journal
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Open access
TDTherence Nwana Dingana
Therence Nwana Dingana
SNStewart Ngasa
Stewart Ngasa
NNNeh Chang Ngasa
Neh Chang Ngasa
LSLeticia Armelle Sani
Leticia Armelle Sani
CAChristabel Abanda
Christabel Abanda
CBCarlson-Sama Babila
Carlson-Sama Babila
INTRODUCTION: Postpartum depression is one of the many challenges associated with childbirth. In Cameroon, the focus is more on postpartum obstetric complications resulting in underdiagnosis and misdiagnosis of this condition. The current socio-political crisis plaguing the English-speaking part of Cameroon has increased the stressors that may inherently increase the prevalence. There is no published data describing post-partum depression in a rural setting in Cameroon. We seek to determine the prevalence and factors associated with PPD in women attending the Tubah District hospital, North West Region, Cameroon.

29 November 2022 in PLOS Global Public Health
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JNJuste Ongeh Niba
Juste Ongeh Niba
SNStewart Ngasa
Stewart Ngasa
NCNeh Chang
Neh Chang
ESEric Sanji
Eric Sanji
AAAnne-Marie Awa
Anne-Marie Awa
MJMekolle Enongene Julius
Mekolle Enongene Julius
Armed conflicts are a major contributor to global disease burden owing to their deleterious effects on health and healthcare delivery. The Anglophone crisis in Cameroon is one of the ongoing conflicts in Sub-Saharan Africa and has led to massive displacement of healthcare workers (HCWs). However, some HCWs have stayed back and continued working. An understanding of their experiences, perspectives and professional perseverance is lacking. We designed a phenomenological study using Focused Group Discussions (FGDs) and in-depth interviews to: understand the experiences of 12 HCWs in a remote hospital in the North West region of Cameroon with armed groups; evaluate how it affects healthcare delivery from HCWs perspective and examine HCWs coping mechanisms during the conflict with a view of informing HCW protection policies in conflict zones. Results revealed that HCWs go through all forms of violence including threats, assaults and murders. Overall insecurity and shortage of health personnel were major barriers to healthcare delivery which contributed to underutilization of healthcare services. Participants observed an increase in complications due to malaria, malnutrition and a rise in maternal and infant mortality. The hospital management and Non-Governmental Organizations (NGOs) played an essential role in HCWs adaptation to the crisis. Nevertheless they unanimously advocated for a cease fire to end the conflict. In the meantime, passion for their job was the main motivating factor to stay at work.