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J. Orwa · SciRah

Researcher profile · Semantic Scholar

J. Orwa

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J. Orwa — researcher profile on SciRah

h-index: 14
Works: 43
Citations: 519

Most-cited papers

Sensitive and Feasible Specimen Collection and Testing Strategies for Diagnosing Tuberculosis in Young Children.
R. Song, E. Click, K. McCarthy, C. Heilig +13 more
2021JAMA pediatrics48 citations Open access
Semantic Scholar
Male Involvement in Reproductive and Maternal and New Child Health: An Evaluative Qualitative Study on Facilitators and Barriers From Rural Kenya
A. Lusambili, P. Muriuki, Stefania Wisofschi, C. Shumba +8 more
2021Frontiers in Public Health42 citations Open access
Semantic Scholar
Birth preparedness and complication readiness among women of reproductive age in Kenya and Tanzania: a community-based cross-sectional survey
J. Orwa, S. Gatimu, Michaela Mantel, S. Luchters +13 more
2020BMC Pregnancy and Childbirth38 citations Open access
Semantic Scholar
A signature of Prevotella copri and Faecalibacterium prausnitzii depletion, and a link with bacterial glutamate degradation in the Kenyan colorectal cancer patients
Sarah Obuya, A. Elkholy, Nagavardhini Avuthu, M. Behring +16 more
2022Journal of Gastrointestinal Oncology30 citations Open access
Semantic Scholar
Cohort Profile: The Kaloleni/Rabai Community Health and Demographic Surveillance System
A. Ngugi, R. Odhiambo, F. Agoi, Amyn Lakhani +7 more
2019International Journal of Epidemiology27 citations Open access
Semantic Scholar
Maternal healthcare services use in Mwanza Region, Tanzania: a cross-sectional baseline survey
J. Orwa, Michaela Mantel, M. Mugerwa, S. Brownie +11 more
2019BMC Pregnancy and Childbirth25 citations Open access
Semantic Scholar
Mammographic Breast Density and Breast Cancer Molecular Subtypes: The Kenyan-African Aspect
A. Shaikh, M. Mullooly, S. Sayed, Rose Ndumia +5 more
2018BioMed Research International23 citations Open access
Semantic Scholar
Factors influencing TB treatment interruption and treatment outcomes among patients in Kiambu County, 2016-2019
E. Kimani, S. Muhula, T. Kiptai, J. Orwa +2 more
2021PLoS ONE22 citations Open access
Semantic Scholar
A Qualitative Endline Evaluation Study of Male Engagement in Promoting Reproductive, Maternal, Newborn, and Child Health Services in Rural Kenya
A. Lusambili, Stefania Wisofschi, C. Shumba, P. Muriuki +11 more
2020Frontiers in Public Health22 citations Open access
Semantic Scholar
Perceptions regarding the scope of practice of family doctors amongst patients in primary care settings in Nairobi
G. Mohamoud, B. Mash, M. Merali, J. Orwa +1 more
2018African Journal of Primary Health Care & Family Medicine20 citations Open access
Semantic Scholar
Routine third‐trimester ultrasound for the detection of small‐for‐gestational age in low‐risk pregnancies (ROTTUS study): randomized controlled trial
S. Wanyonyi, J. Orwa, H. Ozelle, J. Martinez +4 more
2021Ultrasound in Obstetrics and Gynecology18 citations Open access
Semantic Scholar
The incidence and modifiable risk factors for necrotizing enterocolitis in preterm infants: a retrospective cohort study
K. Gitau, R. Ochieng, M. Limbe, C. Kathomi +1 more
2023Journal of Maternal-Fetal & Neonatal Medicine17 citations Open access
Semantic Scholar
COVID-19 vaccination refusal trends in Kenya over 2021
R. Rego, Brooke C. Kenney, A. Ngugi, Leon Espira +15 more
2023Vaccine15 citations Open access
Semantic Scholar
Pentavalent vaccination in Kenya: coverage and geographical accessibility to health facilities using data from a community demographic and health surveillance system in Kilifi County
Morris Ogero, J. Orwa, R. Odhiambo, F. Agoi +5 more
2022BMC Public Health15 citations Open access
Semantic Scholar
Determining the quality of life of children living with epilepsy in Kenya-A cross-sectional study using the CHEQOL-25 tool.
Syeda Ra'ana Hussain, J. Orwa, D. Sokhi, C. Kathomi +4 more
2020Seizure14 citations Open access
Semantic Scholar
Factors Associated with Mortality Among Hospitalized Adults with COVID-19 Pneumonia at a Private Tertiary Hospital in Tanzania: A Retrospective Cohort Study
Nadeem Kassam, Eric L. Aghan, O. Aziz, Hanifa Mbithe +5 more
2021International Journal of General Medicine12 citations Open access
Semantic Scholar
Translation and validation of Training Needs Analysis Questionnaire among reproductive, maternal and newborn health workers in Tanzania
T. Mwansisya, C. Mbekenga, K. Isangula, Loveluck Mwasha +10 more
2021BMC Health Services Research12 citations Open access
Semantic Scholar
Investigating SOFA, delta-SOFA and MPM-III for mortality prediction among critically ill patients at a private tertiary hospital ICU in Kenya: A retrospective cohort study
Lillian N Lukoko, P. Kussin, R. Adam, J. Orwa +1 more
2020PLoS ONE12 citations Open access
Semantic Scholar
Use of mobile technology to identify behavioral mechanisms linked to mental health outcomes in Kenya: protocol for development and validation of a predictive model
Willie Njoroge, Rachel Maina, E. Frank, L. Atwoli +15 more
2023BMC Research Notes11 citations Open access
Semantic Scholar
Knowledge, Attitudes, and Preparedness for Managing Pregnant and Postpartum Women with COVID-19 Among Nurse-Midwives in Kenya
Rose Maina, R. Kimani, J. Orwa, B. Mutwiri +3 more
2022SAGE Open Nursing10 citations Open access
Semantic Scholar
Adolescent fertility and its determinants in Kenya: Evidence from Kenya demographic and health survey 2014
Naomi Monari, J. Orwa, Alfred O. Agwanda
2022PLoS ONE10 citations Open access
Semantic Scholar
Maternal Sociodemographic Factors and Antenatal Stress
M. Andhavarapu, J. Orwa, M. Temmerman, J. Musana
2021International Journal of Environmental Research and Public Health10 citations Open access
Semantic Scholar
Trends and factors associated with declining lifetime fertility among married women in Kenya between 2003 and 2014: an analysis of Kenya demographic health surveys
J. Orwa, S. Gatimu, Paulino Ariho, M. Temmerman +1 more
2023BMC Public Health9 citations Open access
Semantic Scholar
Health facilities preparedness to deliver maternal and newborn health care in Kilifi and Kisii Counties, Kenya
J. Orwa, M. Temmerman, Lucy Nyaga, K. Mulama +1 more
2023BMC Health Services Research8 citations Open access
Semantic Scholar
Using social practice theory in measuring perceived stigma among female sex workers in Mombasa, Kenya
J. N. Guni, S. Wanjala, G. Manguro, Caroline Gichuki +4 more
2023BMC Public Health8 citations Open access
Semantic Scholar
Exploring the impact of health worker strikes on maternal and child health in a Kenyan county
A. Mohiddin, E. Langat, J. Orwa, V. Naanyu +1 more
2022BMC Health Services Research8 citations Open access
Semantic Scholar
Factors associated with use of long-acting reversible and permanent contraceptives among married women in rural Kenya: A community-based cross-sectional study in Kisii and Kilifi counties
J. Orwa, S. Gatimu, A. Ngugi, Alfred O. Agwanda +1 more
2022PLoS ONE5 citations Open access
Semantic Scholar
Performance in mortality prediction of SAPS 3 And MPM-III scores among adult patients admitted to the ICU of a private tertiary referral hospital in Tanzania: a retrospective cohort study
Nadeem Kassam, Eric L. Aghan, S. Somji, O. Aziz +2 more
2021PeerJ5 citations Open access
Semantic Scholar
Community-driven data revolution is feasible in developing countries: experiences from an integrated health information and surveillance system in Kenya
A. Ngugi, G. Walraven, J. Orwa, A. Lusambili +2 more
2021Journal of global health reports4 citations Open access
Semantic Scholar
Application of psychosocial models to Home-Based Testing and Counseling (HBTC) for increased uptake and household coverage in a large informal urban settlement in Kenya
P. Oluoch, J. Orwa, Fillet Lugalia, David Mutinda +5 more
2017The Pan African Medical Journal4 citations Open access
Semantic Scholar
Elective reconstruction of the ascending aorta for aneurysmal disease restores normal life expectancy. An analysis of risk factors for early and late mortality
Dries Van Duffel, Ruben Van Gemert, P. Starinieri, J. Pauwels +9 more
20134 citations
Semantic Scholar
Elective reconstruction of the ascending aorta for aneurysmal disease restores normal life expectancy. An analysis of risk factors for early and late mortality.
Dries Van Duffel, Ruben Van Gemert, P. Starinieri, J. Pauwels +9 more
2013Acta Cardiologica4 citations
Semantic Scholar
Validation of Training Need Assessment Questionnaire Among Health Care Workers in Reproductive, Maternal and Newborn Health Care in Low-Income Countries
T. Mwansisya, C. Mbekenga, K. Isangula, Loveluck Mwasha +11 more
20203 citations Open access
Semantic Scholar
Performance of Xpert MTB/RIF and Mycobacterial Culture on Multiple Specimen Types for Diagnosis of Tuberculosis Disease in Young Children and Clinical Characterization According to Standardized Research Case Definitions
E. Click, R. Song, Jonathan P. Smith, W. Mchembere +17 more
2022The Pediatric Infectious Disease Journal2 citations Open access
Semantic Scholar
Training Needs Assessment of Health Care Professionals in Reproductive, Maternal and Newborn Health in a Low-Income Setting in Tanzania
C. Mbekenga, Eunice Pallangyo, T. Mwansisya, K. Isangula +10 more
20202 citations Open access
Semantic Scholar
Completion of the maternal continuum of care in Kenya and Tanzania: role of quality antenatal care and other factors in a cross-sectional study
J. Orwa, S. Gatimu, Lucy Nyagah, H. Kidanto +1 more
2026Research Square0 citations Open access
Semantic Scholar
Magnitude, Distribution and Contextual Risk Enhancing Predictors of High 10-Year Cardiovascular Risk Among Diabetic Patients in Tanzania
Nadeem Kassam, S. Surani, K. Hameed, Eric L. Aghan +8 more
2023Patient Related Outcome Measures0 citations Open access
Semantic Scholar
inflammatory diseases
Zayani Seif, Akid Alaa, Hadj Salem Radhia, Chouchane Chokri +3 more
20220 citations
Semantic Scholar
AB0729 CLINICO-EPIDEMIOLOGICAL PROFILE OF JUVENILE IDIOPATHIC ARTHRITIS (JIA) PATIENTS IN KENYA; DATA FROM THE KENYA PEDIATRIC RHEUMATOLOGY (KAPRI) REGISTRY
A. Migowa, R. Odhiambo, J. Orwa, J. Shah
20210 citations Open access
Semantic Scholar
P010 Clinico-epidemiological characteristics and outcomes of Juvenile Idiopathic Arthritis (JIA) patients in Kenya: data from the KAPRI registry
A. Migowa, R. Odhiambo, J. Orwa, J. shah
2021Rheumatology0 citations
Semantic Scholar
OP-IJEJ190260_cohort 758..764
A. Ngugi, R. Odhiambo, F. Agoi, Amyn Lakhani +7 more
20200 citations
Semantic Scholar
SAT0485 THE FIRST 18 MONTHS OF A PEDIATRIC RHEUMATOLOGY SERVICE AT A TERTIARY REFERRAL HOSPITAL IN KENYA
A. Migowa, J. Orwa
2019Saturday, 15 June 20190 citations Open access
Semantic Scholar
Do clients receiving Home based testing and counselling (HBTC) utilize the HIV prevention messages delivered? A study among residents in an urban informal settlement in Kenya who previously received HBTC.
P. Oluoch, T. Achia, David Mutinda, J. Orwa +3 more
2017African Journal of Health Sciences0 citations
Semantic Scholar

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Loveluck Mwasha×5

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