Trasias Mukama

Dr. Trasias Mukama

Cancer Epidemiology, German Cancer Research Center, Heidelberg, Baden-Württemberg, Germany
orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

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

Representative Publications

View All Publications
7 January 2025 in Nature Medicine
Verified
Journal Article
Open access
PDF file
NENora Eisemann
Nora Eisemann
SBStefan Bunk
Stefan Bunk
Trasias MukamaTrasias Mukama
Trasias Mukama
HBHannah Baltus
Hannah Baltus
SESusanne A. Elsner
Susanne A. Elsner
AKAlexander Katalinic
Alexander Katalinic
Artificial intelligence (AI) in mammography screening has shown promise in retrospective evaluations, but few prospective studies exist. PRAIM is an observational, multicenter, real-world, noninferiority, implementation study comparing the performance of AI-supported double reading to standard double reading (without AI) among women (50–69 years old) undergoing organized mammography screening at 12 sites in Germany. Radiologists in this study voluntarily chose whether to use the AI system. From July 2021 to February 2023, a total of 463,094 women were screened (260,739 with AI support) by 119 radiologists. Radiologists in the AI-supported screening group achieved a breast cancer detection rate of 6.7 per 1,000, which was 17.6% (95% confidence interval: +5.7%, +30.8%) higher than and statistically superior to the rate (5.7 per 1,000) achieved in the control group. The recall rate in the AI group was 37.4 per 1,000, which was lower than and noninferior to that (38.3 per 1,000) in the control group (percentage difference: −2.5% (−6.5%, +1.7%)). The positive predictive value (PPV) of recall was 17.9% in the AI group compared to 14.9% in the control group. The PPV of biopsy was 64.5% in the AI group versus 59.2% in the control group. Compared to standard double reading, AI-supported double reading was associated with a higher breast cancer detection rate without negatively affecting the recall rate, strongly indicating that AI can improve mammography screening metrics.

19 February 2016 in PLOS ONE
Verified
Journal Article
Open access
PDF file
RNRawlance Ndejjo
Rawlance Ndejjo
Trasias MukamaTrasias Mukama
Trasias Mukama
AMAngele Musabyimana
Angele Musabyimana
David MusokeDavid Musoke
David Musoke
In developing countries, inadequate access to effective screening for cervical cancer often contributes to the high morbidity and mortality caused by the disease. The largest burden of this falls mostly on underserved populations in rural areas, where health care access is characterized by transport challenges, ill equipped health facilities, and lack of information access. This study assessed uptake of cervical cancer screening and associated factors among women in rural Uganda. This descriptive cross sectional study was carried out in Bugiri and Mayuge districts in eastern Uganda and utilised quantitative data collection methods. Data were collected using a semi-structured questionnaire on cervical cancer screening among females aged between 25 and 49 years who had spent six or more months in the area. Data were entered in Epidata 3.02 and analysed in STATA 12.0 statistical software. Univariate, bivariate and multivariate analyses were performed. Of the 900 women, only 43 (4.8%) had ever been screened for cervical cancer. Among respondents who were screened, 21 (48.8%) did so because they had been requested by a health worker, 17 (39.5%) had certain signs and symptoms they associated with cervical cancer while 16 (37.2%) did it voluntarily to know their status. Barriers to cervical cancer screening were negative individual perceptions 553 (64.5%) and health facility related challenges 142 (16.6%). Other respondents said they were not aware of the screening service 416 (48.5%). The independent predictors of cervical cancer screening were: being recommended by a health worker [AOR = 87.85, p<0.001], knowing where screening services were offered [AOR = 6.24, p = 0.004], and knowing someone who had ever been screened [AOR = 9.48, p = 0.001]. The prevalence of cervical cancer screening is very low in rural Uganda. Interventions to increase uptake of cervical cancer screening should be implemented so as to improve access to the service in rural areas.

31 January 2017 in BMC Women's Health
Verified
Journal Article
Open access
PDF file
Trasias MukamaTrasias Mukama
Trasias Mukama
RNRawlance Ndejjo
Rawlance Ndejjo
AMAngele Musabyimana
Angele Musabyimana
AHAbdullah Ali Halage
Abdullah Ali Halage
David MusokeDavid Musoke
David Musoke
Cervical cancer is a leading cause of morbidity and mortality among women in Uganda, often due to late disease diagnosis. Early screening for the cancer has been shown to be the most effective measure against the disease. Studies conducted elsewhere have reported the lack of awareness and negative attitudes towards cervical cancer as barriers to early screening. This study assessed the knowledge and attitudes of Ugandan women about cervical cancer prevention with the aim of informing prevention and control interventions. This study was conducted in Bugiri and Mayuge districts in eastern Uganda. It was a cross-sectional community based survey and collected data by means of a questionnaire. A total of 900 women aged 25–49 years participated in the study. Women’s knowledge and attitudes towards cervical cancer prevention were assessed and scored. Data were analysed using STATA 12.0 software. Bivariate and multivariate analyses were carried out to establish the relationship between knowledge levels and demographic characteristics. Most (794; 88.2%) of the respondents had heard about cervical cancer, the majority (557; 70.2%) having received information from radio and 120 (15.1%) from health facilities. Most women (562; 62.4%) knew at least one preventive measure and (743; 82.6%) at least one symptom or sign of the disease. The majority (684; 76.0%) of respondents perceived themselves to be at risk of cervical cancer, a disease most (852; 94.6%) thought to be very severe. Living in peri-urban areas (AOR = 1.62, 95% CI: 1.15 – 2.28), urban areas (AOR = 3.64, 95% CI: 2.14 – 6.19), having a higher monthly income (AOR = 0.50, 95% CI: 0.37 – 0.68) and having had an HIV test (AOR = 1.99, 95% CI: 1.34–2.96) were associated with level of knowledge about cervical cancer prevention. Although general knowledge about cervical cancer prevention was relatively high among women, and attitudes mostly encouraging, specific knowledge about screening was low. There were also undesirable perceptions and beliefs regarding cervical cancer among respondents. There is therefore need for more education campaigns to bridge identified knowledge gaps, and scale up of cervical cancer screening services to all women to increase service uptake.

11 June 2017 in BMJ Open
Verified
Journal Article
Open access
PDF file
RNRawlance Ndejjo
Rawlance Ndejjo
Trasias MukamaTrasias Mukama
Trasias Mukama
JKJuliet Kiguli
Juliet Kiguli
David MusokeDavid Musoke
David Musoke
Objectives: To explore community knowledge, facilitators and barriers to cervical cancer screening among women in rural Uganda so as to generate data to inform interventions. Design: A qualitative study using focus group discussions and key informant interviews. Setting: Discussions and interviews carried out in the community within two districts in Eastern Uganda. Participants: Ten ( 10) focus group discussions with 119 screening-eligible women aged between 25 and 49 years and 11 key informant interviews with healthcare providers and administrators. Results: Study participants’ knowledge about cervical cancer causes, signs and symptoms, testing methods and prevention was poor. Many participants attributed the cause of cervical cancer to use of contraception while key informants said that some believed it was due to witchcraft. Perceptions towards cervical cancer and screening were majorly positive with many participants stating that they were at risk of getting cervical cancer. The facilitators to accessing cervical cancer screening were: experiencing signs and symptoms of cervical cancer, family history of the disease and awareness of the disease/screening service. Lack of knowledge about cervical cancer and screening, health system challenges, fear of test outcome and consequences and financial constraints were barriers to cervical cancer screening. Conclusion: Whereas perceptions towards cervical cancer and screening were positive, knowledge of study participants on cervical cancer was poor. To improve cervical cancer screening, effort should be focused on reducing identified barriers and enhancing facilitators.

1 January 2016 in Journal of Environmental and Public Health
Verified
Journal Article
Open access
PDF file
Trasias MukamaTrasias Mukama
Trasias Mukama
RNRawlance Ndejjo
Rawlance Ndejjo
David MusokeDavid Musoke
David Musoke
GMGeofrey Musinguzi
Geofrey Musinguzi
AHAbdullah Ali Halage
Abdullah Ali Halage
JSJohn C. Ssempebwa
John C. Ssempebwa
Poor solid waste management is among the major challenges facing urban slums in developing countries including Uganda. Understanding community concerns and willingness towards involvement in solid waste management improvement initiatives is critical for informing interventions in slums.Methods. We used a cross-sectional study to collect quantitative data from 435 residents in two urban slums in central Uganda. A semistructured questionnaire was used which assessed waste collection practices, separation and disposal methods, concerns regarding solid wastes, and willingness to participate in waste separation and composting. Data was analysed using STATA 12.Results. Food remains (38%) and plastics (37%) formed the biggest proportion of wastes generated in households. Most households (35.9%) disposed of general wastes by open dumping while 27% disposed of plastics by burning. Only 8.8% of households conducted composting while 55% carried out separation for some decomposable wastes. Separation was carried out for only banana peelings and leftover foods for feeding animals. Respondents expressed high willingness to separate (76.6%) and compost (54.9%) solid wastes.Conclusion. Practices in waste disposal and separation were poor despite high willingness to participate in initiatives to improve waste management, highlighting a need for authorities to engage residents of slums to improve their practices.

9 July 2020 in PLOS ONE
Verified
Journal Article
Open access
PDF file
TSTonny Ssekamatte
Tonny Ssekamatte
Trasias MukamaTrasias Mukama
Trasias Mukama
SKSimon P S Kibira
Simon P S Kibira
RNRawlance Ndejjo
Rawlance Ndejjo
JBJustine Nnakate Bukenya
Justine Nnakate Bukenya
JMJoan Nankya Mutyoba
Joan Nankya Mutyoba
Screening and vaccination against Hepatitis B virus (HBV) infection remains the most effective intervention in curbing the disease. However, there is limited evidence on the factors associated with the uptake of these services in Uganda. This study determined the uptake of HBV screening and vaccination status, and associated factors among Healthcare Providers (HCPs) in Wakiso district, Uganda. This cross-sectional study was conducted among 306 HCPs, randomly selected from 55 healthcare facilities. Prevalence ratios (PR) were used to determine the factors associated with HBV screening and vaccination status of HCPs. Of the 306 HCPs, 230 (75.2%) had ever screened for HBV infection while 177 (57.8%) were fully vaccinated. Being male was positively associated with ‘ever been screened’ for HBV infection (Adjusted PR = 1.27, 95%CI 1.13–1.41). Working in a public healthcare facility (Adjusted PR = 0.78, 95%CI 0.68–0.90) was negatively associated with ever been screened. Male sex (Adjusted PR = 1.21, 95%CI 1.01–1.46), the belief that the HBV vaccine was safe (Adjusted PR = 1.72, 95%CI 1.03–2.89) and ever been screened (Adjusted PR = 2.28, 95%CI 1.56–3.34) were positively associated with being fully vaccinated. However, working in a public healthcare facility (Adjusted PR = 0.79, 95%CI 0.64–0.98), self-perceived risk of HBV infection (Adjusted PR = 0.72, 95% CI:0.62–0.84), and working in a healthcare facility with infection control guidelines (Adjusted PR = 0.79, 95%CI 0.66–0.95) were negatively associated with being fully vaccinated. Three quarters of HCPs had ever been screened for HBV while slightly more than half were fully vaccinated. HBV screening and vaccination interventions need to consider the HCP sex, risk perception, attitude towards safety and efficacy of the hepatitis B vaccine, and healthcare facility characteristics such as ownership and availability of infection control guidelines, in order to be successful.