Samanta Lalla-Edward

Dr. Samanta Lalla-Edward

Ezintsha, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

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

Representative Publications

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28 October 2019 in BMJ Open
Verified
Journal Article
Open access
PDF file
SLSamanta Lalla-Edward
Samanta Lalla-Edward
AFAlex Emilio Fischer
Alex Emilio Fischer
WVW D Francois Venter
W D Francois Venter
KSKarine Scheuermaier
Karine Scheuermaier
RMRuchika Meel
Ruchika Meel
AVAlinda G. Vos
Alinda G. Vos
Objectives Lifestyle and working conditions of truck drivers predisposes them to risk-factors associated with communicable and non-communicable diseases, but little is known about the health status of African truck driver. This study aims to assess a cross-section of truckers in South Africa to describe their health information. Setting The study took place across three truck-stop rest areas in the South African provinces of Free State and Gauteng. Participants Eligibility criteria included being males aged 18 years and older, full-time employment as a long-distance truck driver. A total of 614 male truck drivers participated; 384 (63%) were Zimbabwean and 325 (55%) completed high-school. Primary and secondary outcome measures The trucker survey explored demographics; working conditions; sexual, eating and sleeping behaviours; mental health status, medical history and cardiac risk-factors. Medical assessments included physical measurements, glucose and lipid measurements, ECG, carotid intima-media thickness (CIMT) and cardiac ultrasound. Results In the previous month, 554 (91%) participants were sexually active; 522 (86%) had sex with a regular partner; 174 (27%) with a casual partner; 87 (14%) with a sex worker. Average time driving was 10 hours/day, 20 days/month, 302 (50%) never worked night shifts and 74 (12%) worked nights approximately four times per week. 112 (18%) experienced daytime sleepiness and 59 (10%) were ever hospitalised from an accident. Forty-seven (8%, 95% CI 5.3 to 9.5) were HIV-positive, with half taking antiretrovirals. Forty-eight (8%) truckers had some moderate depression, while 21 (4%) suffered from post-traumatic stress disorder. Reported tuberculosis, myocardial infarction, and diabetes were 15 drinks/week) (n=54, 9%), overweight/obesity (n=417, 69%), and hypertension (n=220, 36%,95% CI 32.1 to 39.7). ECG results showed 23 (4.9%) and 29 (5.3%) drivers had left ventricular hypertrophy using the Cornell criterion and product, respectively. CIMT measurements indicated nine (4.2%) drivers had a carotid atherosclerotic plaque. Conclusion This first holistic assessment of health among southern African male truck drivers demonstrates substantial addressable cardiovascular risk factors, mental health issues and sexual risk behaviours.

2 April 2019 in JMIR mHealth and uHealth
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Journal Article
Open access
WVWillem Daniel Francois Venter
Willem Daniel Francois Venter
AFAlex Fischer
Alex Fischer
SLSamanta Lalla-Edward
Samanta Lalla-Edward
JCJesse Coleman
Jesse Coleman
VCVincent Lau Chan
Vincent Lau Chan
NFNicole Fraser-Hurt
Nicole Fraser-Hurt
Mobile and tablet apps, ubiquitous and pervasive computing, wearable computing and domotics for health.

8 December 2022 in Frontiers in Public Health
Verified
Journal Article
Open access
SLSamanta Lalla-Edward
Samanta Lalla-Edward
AMAtiya Mosam
Atiya Mosam
JHJennifer Hove
Jennifer Hove
AEAgnes Erzse
Agnes Erzse
TRTeurai Rwafa-Ponela
Teurai Rwafa-Ponela
SGSusan Goldstein
Susan Goldstein
Background: Between May 2020 and February 2022, South Africa's health system bore strain as it battled mitigating the coronavirus pandemic. The country's pandemic response was scrutinized. This period also brought into focus pre-existing shortcomings in the healthcare system and its governing bodies. Contextually, there is a paucity in literature on the experiences of healthcare providers and users. This study aimed to contribute information on COVID-19, with the intention of providing guidance on preparing for future infectious disease outbreaks.Methods: Cross sectional exploratory qualitative methodology was employed using semi-structured interviews and focus group discussions with community members (CM) and healthcare workers (HCW) from two South African study sites: (a) rural Bushbuckridge (run by Agincourt Health and Socio-Demographic Surveillance Site) and (b), Regions D and F in Johannesburg Metropole.Results: After interviewing 42 CMs and 43 HCWs, it emerged that mandated process changes while minimizing COVID-19 exposure, necessitated healthcare personnel focusing on critical care treatment at the expense of less acute ones. COVID-19 isolation protocols, extensive absenteeism and HCWs with advanced skills being perceived as more adept to treat COVID-19 patients contributed to HCWs experiencing higher workloads. Fears regarding contracting and transmitting COVID-19, suffering financial losses, and not being able to provide adequate advice to patients were recurrent themes. Dissemination of relevant information among healthcare facility personnel and communities suffered due to breakdowns in communication.Conclusion: Concessions and novel strategies to avail medication to patients had to be created. Since providence was lacking, government needs to formulate health intervention strategies that embrace health literacy, alternate methods of chronic medication dispensation, improved communication across health care platforms and the use of telehealth, to circumvent the threats of possible further infectious disease outbreaks.

30 June 2020 in Southern African Journal of HIV Medicine
Verified
Journal Article
Open access
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NGNatasha Gous
Natasha Gous
AFAlex E. Fischer
Alex E. Fischer
NRNaleni Rhagnath
Naleni Rhagnath
MPMothepane Phatsoane
Mothepane Phatsoane
MMMohammed Majam
Mohammed Majam
SLSamanta Lalla-Edward
Samanta Lalla-Edward
The Southern African Journal of HIV Medicine is focused on HIV/AIDS treatment, prevention and related topics relevant to clinical and public health practice. The purpose of the journal is to disseminate original research results and support high-level learning related to HIV Medicine. It publishes original research articles, editorials, case reports/case series, reviews of state-of-the-art clinical practice and correspondence.

14 January 2020 in PLOS ONE
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Journal Article
Open access
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MMMohammed Majam
Mohammed Majam
LMLaura Mazzola
Laura Mazzola
NRNaleni Rhagnath
Naleni Rhagnath
SLSamanta Lalla-Edward
Samanta Lalla-Edward
RMRaees Mahomed
Raees Mahomed
AFAlex Emilio Fischer
Alex Emilio Fischer
The first 90 of the 90-90-90 initiative introduced by the World Health Organization(WHO) in 2015 requires 90% of people with HIV be aware of their status by 2020. In South Africa, conventional facility-based testing had reached 84.9% in 2018; innovative new methods, like HIV self-testing(HIVST) may close the testing gap. This study aimed to determine the usability of seven HIVST kits among untrained South Africans. This cross-sectional study of 1400 adults in Johannesburg evaluated the usability of five blood fingerstick and two oral fluid HIVSTs, using WHO prequalification criteria, from June 2016 to June 2018. Participants were handed one kit, with no further information about the device or test procedure, and asked to perform the test in front of an observer. The observer used product-specific semi-structured questionnaires organized into a composite usability index(UI) using a HIVST process checklist, a contrived results interpretation and a post-test interview that expanded on participant experiences with the device and instructions-of-use(IFU). Participants were not tested themselves, but provided with contrived results to interpret. The average UI was 92.8%(84.2%-97.6%); the major difficulty was obtaining and transferring the specimen. Participants correctly interpreted 96.1% of the non-reactive/negative, 97.0% of the reactive/positive, 98.0% of the invalid and 79.9% of the weak positive results. Almost all participants(97.0%) stated they would visit a clinic or seek treatment for positive results; with negative results, half(50.6%) stated they should re-test in the next three months while one-third(36.1%) said they should condomize. Nearly all found the devices easy to use(96.6%), the IFUSs easy to understand(97.9%) and felt confident using the test unassisted(95.9%) but suggested improvements to packaging/IFUs to further increase usability; 19.9% preferred clinic-based testing to HIVST. The UI and interpretation of results was high and in-line with previous usability studies, suggesting that these kits are appropriate for use in the general, untrained and unsupervised public.

25 March 2019 in BMC Public Health
Verified
Journal Article
Open access
PDF file
VJVita W. Jongen
Vita W. Jongen
SLSamanta Lalla-Edward
Samanta Lalla-Edward
AVAlinda G. Vos
Alinda G. Vos
NGNoortje G. Godijk
Noortje G. Godijk
HTHugo Tempelman
Hugo Tempelman
KKKerstin Klipstein-Grobusch
Kerstin Klipstein-Grobusch
Hypertension is one of the most important risk factors for cardiovascular disease and has a high prevalence in South Africa and other low- and middle-income countries. However, awareness of hypertension has been reported to be low. Health programmes can increase awareness of hypertension and its causes, but hinge on the knowledge and perception of the targeted community. Therefore, this study investigated knowledge on and perceptions about hypertension of community members in a rural area in Limpopo, South Africa with the aim to increase awareness of hypertension and cardiovascular disease in the local population. Using a mixed methods study approach, 451 participants of the Ndlovu Cohort Study, attending a follow-up visit between August 2017 and January 2018, completed a questionnaire on cardiovascular risk perception. A knowledge score was calculated for all participants. Sixty participants were invited to participate in six focus group discussions, of which 56 participated. Audio recordings were transcribed verbatim, transcripts coded, and thematic analysis of the data undertaken to obtain an understanding of knowledge and perception of hypertension in the community. Most members of the community seemed to have intermediate (74.3%) or good (14.0%) knowledge of hypertension based on the knowledge score, and only 11.8% of the population had poor knowledge. The risk factors of hypertension seemed to be well known in the community. Poverty was identified as a major vulnerability in this community limiting choices for healthy lifestyles such as nutritious foods, recreational physical activity and accessing health care timely. Participants proposed community-based activities as an effective way to reach out to community members for prevention and management of hypertension. This study highlights the need for improved health promotion efforts to increase knowledge of hypertension in rural communities, and to address poverty as a major obstacle to healthy life-style choices.