P. Macharia

Most-cited papers

1. Access to emergency hospital care provided by the public sector in sub-Saharan Africa in 2015: a geocoded inventory and spatial analysis

   P. Ouma, J. Maina, Pamela N Thuranira, P. Macharia +4 more

   2018Lancet Global Health332 citations Open access

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2. A spatial database of health facilities managed by the public health sector in sub Saharan Africa

   J. Maina, P. Ouma, P. Macharia, V. Alegana +5 more

   2019Scientific Data173 citations Open access

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3. Spatio-temporal analysis of Plasmodium falciparum prevalence to understand the past and chart the future of malaria control in Kenya

   P. Macharia, E. Giorgi, A. Noor, E. Waqo +3 more

   2018Malaria Journal83 citations Open access

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4. Spatial access inequities and childhood immunisation uptake in Kenya

   Noel K. Joseph, P. Macharia, P. Ouma, Jeremiah Mumo +10 more

   2020BMC Public Health74 citations Open access

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5. A vulnerability index for COVID-19: spatial analysis at the subnational level in Kenya

   P. Macharia, Noel K. Joseph, E. Okiro

   2020BMJ Global Health67 citations Open access

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6. Geographic accessibility to public and private health facilities in Kenya in 2021: An updated geocoded inventory and spatial analysis

   Angela K. Moturi, Laurissa Suiyanka, Eda Mumo, R. Snow +2 more

   2022Frontiers in Public Health61 citations Open access

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7. Plasmodium falciparum parasite prevalence in East Africa: Updating data for malaria stratification

   V. Alegana, P. Macharia, S. Muchiri, Eda Mumo +10 more

   2021PLOS Global Public Health58 citations Open access

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8. Spatial accessibility to basic public health services in South Sudan

   P. Macharia, P. Ouma, Ezekiel Gogo, R. Snow +1 more

   2017Geospatial Health56 citations Open access

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9. National and sub-national variation in patterns of febrile case management in sub-Saharan Africa

   V. Alegana, J. Maina, P. Ouma, P. Macharia +5 more

   2018Nature Communications55 citations Open access

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10. Differences between gridded population data impact measures of geographic access to healthcare in sub-Saharan Africa

    F. Hierink, G. Boo, P. Macharia, P. Ouma +7 more

    2022Communications Medicine52 citations Open access

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11. When health data go dark: the importance of the DHS Program and imagining its future

    J. J. Khaki, J. Molenaar, Sulata Karki, E. Olal +26 more

    2025BMC Medicine48 citations Open access

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12. Methods of Measuring Spatial Accessibility to Health Care in Uganda

    P. Ouma, P. Macharia, E. Okiro, V. Alegana

    2021Practicing Health Geography48 citations Open access

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13. Spatial and spatio-temporal methods for mapping malaria risk: a systematic review

    J. N. Odhiambo, C. Kalinda, P. Macharia, R. Snow +1 more

    2020BMJ Global Health47 citations Open access

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14. Tracking the introduction and spread of SARS-CoV-2 in coastal Kenya

    G. Githinji, Z. R. de Laurent, K. Mohammed, D. Omuoyo +22 more

    2020Nature Communications42 citations Open access

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15. Defining service catchment areas in low-resource settings

    P. Macharia, Nicolas Ray, E. Giorgi, E. Okiro +1 more

    2021BMJ Global Health40 citations Open access

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16. Spatial models for the rational allocation of routinely distributed bed nets to public health facilities in Western Kenya

    P. Macharia, P. Odera, R. Snow, A. Noor

    2017Malaria Journal39 citations Open access

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17. Geographical accessibility to functional emergency obstetric care facilities in urban Nigeria using closer-to-reality travel time estimates: a population-based spatial analysis.

    A. Banke-Thomas, Kerry L. M. Wong, T. Olubodun, P. Macharia +16 more

    2024Lancet Global Health38 citations Open access

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18. Model building and assessment of the impact of covariates for disease prevalence mapping in low-resource settings: to explain and to predict

    E. Giorgi, C. Fronterrè, P. Macharia, V. Alegana +2 more

    2021Journal of the Royal Society Interface37 citations Open access

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19. Determinants of subnational disparities in antenatal care utilisation: a spatial analysis of demographic and health survey data in Kenya

    Kefa G. Wairoto, Noel K. Joseph, P. Macharia, E. Okiro

    2020BMC Health Services Research37 citations Open access

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20. Simulating the council-specific impact of anti-malaria interventions: A tool to support malaria strategic planning in Tanzania

    Manuela Runge, R. Snow, F. Molteni, S. Thawer +7 more

    2020PLoS ONE36 citations Open access

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21. Geostatistical analysis of Malawi’s changing malaria transmission from 2010 to 2017

    M. Chipeta, E. Giorgi, D. Mategula, P. Macharia +7 more

    2019Wellcome Open Research33 citations Open access

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22. Modelling geographical accessibility to urban centres in Kenya in 2019

    P. Macharia, Eda Mumo, E. Okiro

    2021PLoS ONE31 citations Open access

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23. Advancing the frontiers of geographic accessibility to healthcare services

    P. Macharia, A. Banke-Thomas, L. Beňová

    2023Communications Medicine28 citations Open access

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24. Sub national variation and inequalities in under-five mortality in Kenya since 1965

    P. Macharia, E. Giorgi, Pamela N Thuranira, Noel K. Joseph +3 more

    2019BMC Public Health27 citations Open access

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25. A national health facility survey of malaria infection among febrile patients in Kenya, 2014

    Sophie Githinji, A. Noor, J. Malinga, P. Macharia +5 more

    2016Malaria Journal27 citations Open access

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26. Spatial variation and inequities in antenatal care coverage in Kenya, Uganda and mainland Tanzania using model-based geostatistics: a socioeconomic and geographical accessibility lens

    P. Macharia, Noel K. Joseph, G. Nalwadda, B. Mwilike +3 more

    2022BMC Pregnancy and Childbirth24 citations Open access

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27. Leveraging big data for improving the estimation of close to reality travel time to obstetric emergency services in urban low- and middle-income settings

    A. Banke-Thomas, P. Macharia, P. Makanga, L. Beňová +8 more

    2022Frontiers in Public Health23 citations Open access

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28. Neonatal and perinatal mortality in the urban continuum: a geospatial analysis of the household survey, satellite imagery and travel time data in Tanzania

    P. Macharia, L. Beňová, J. Pinchoff, A. Semaan +3 more

    2022BMJ Global Health21 citations Open access

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29. A vulnerability index for COVID-19: spatial analysis to inform equitable response in Kenya

    P. Macharia, Noel K. Joseph, E. Okiro

    2020medRxiv21 citations Open access

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30. Coverage of routine reporting on malaria parasitological testing in Kenya, 2015–2016

    J. Maina, P. Macharia, P. Ouma, R. Snow +1 more

    2017Global Health Action21 citations Open access

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31. Comparing modelled with self-reported travel time and the used versus the nearest facility: modelling geographic accessibility to family planning outlets in Kenya

    Paul Bouanchaud, P. Macharia, Eden Demise, Doreen Nakimuli

    2022BMJ Global Health19 citations Open access

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32. Modelling geographic access and school catchment areas across public primary schools to support subnational planning in Kenya

    P. Macharia, Angela K. Moturi, Eda Mumo, E. Giorgi +3 more

    2022Children's Geographies18 citations Open access

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33. GIS Analysis and Spatial Modelling for Optimal Oil Pipeline Route Location: A Case Study of Proposed Isiolo Nakuru Pipeline Route

    C. Mundia, P. Macharia

    201418 citations

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34. Measuring geographic access to emergency obstetric care: a comparison of travel time estimates modelled using Google Maps Directions API and AccessMod in three Nigerian conurbations.

    P. Macharia, Kerry L. M. Wong, L. Beňová, Jia Wang +3 more

    2024Geospatial Health16 citations Open access

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35. Malaria micro-stratification using routine surveillance data in Western Kenya

    V. Alegana, Laurissa Suiyanka, P. Macharia, Grace Ikahu-Muchangi +1 more

    2020Malaria Journal16 citations Open access

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36. A geospatial database of close-to-reality travel times to obstetric emergency care in 15 Nigerian conurbations

    P. Macharia, Kerry L. M. Wong, T. Olubodun, L. Beňová +14 more

    2023Scientific Data15 citations Open access

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37. Trends in health workers’ compliance with outpatient malaria case-management guidelines across malaria epidemiological zones in Kenya, 2010–2016

    B. Amboko, K. Stepniewska, P. Macharia, Beatrice K Machini +3 more

    2020Malaria Journal15 citations Open access

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38. Geospatial disparities in survival of patients with breast cancer in sub-Saharan Africa from the African Breast Cancer-Disparities in Outcomes cohort (ABC-DO): a prospective cohort study

    Joanne Kim, P. Macharia, Valerie McCormack, M. Foerster +12 more

    2024Lancet Global Health13 citations Open access

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39. Exploring the urban gradient in population health: insights from satellite-derived urbanicity classes across multiple countries and years in sub-Saharan Africa

    P. Macharia, J. Pinchoff, C. Taylor, L. Beňová

    2023BMJ Global Health13 citations Open access

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40. Experts' Responses Comparison in a GIS-AHP Oil Pipeline Route Optimization: A Statistical Approach

    P. Macharia, C. Mundia, M. Wathuo

    201512 citations

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41. Subnational estimates of factors associated with under-five mortality in Kenya: a spatio-temporal analysis, 1993–2014

    P. Macharia, Noel K. Joseph, B. Sartorius, R. Snow +1 more

    2021BMJ Global Health11 citations Open access

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42. A reproducible picture of open access health facility data in Africa and R tools to support improvement

    A. South, A. Dicko, Mark Herringer, P. Macharia +4 more

    2020Wellcome Open Research11 citations Open access

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43. Socio-spatial equity analysis of relative wealth index and emergency obstetric care accessibility in urban Nigeria

    Kerry L. M. Wong, A. Banke-Thomas, T. Olubodun, P. Macharia +14 more

    2024Communications Medicine10 citations Open access

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44. Combining school-catchment area models with geostatistical models for analysing school survey data from low-resource settings: Inferential benefits and limitations

    P. Macharia, N. Ray, Caroline W. Gitonga, R. Snow +1 more

    2022Spatial Statistics9 citations Open access

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45. Inequities in spatial access to childbirth care in the Grand Conakry conurbation, Guinea

    F. M. Grovogui, N. Dioubaté, H. Manet, Pépé Kpogomou +5 more

    2025Nature Cities8 citations Open access

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46. Analysis of the Breast Cancer Journey in Namibia

    P. Boucheron, A. Zietsman, J. Pontac, Rolf Hansen +7 more

    2023JAMA Network Open8 citations Open access

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47. Putting health facilities on the map: a renewed call to create geolocated, comprehensive, updated, openly licensed dataset of health facilities in sub-Saharan African countries

    P. Macharia, Lenka Beňová, Nicolas Ray, A. Semaan +5 more

    2025BMC Medicine7 citations Open access

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48. Developing policy-ready digital dashboards of geospatial access to emergency obstetric care: a survey of policymakers and researchers in sub-Saharan Africa

    Jia Wang, Kerry L. M. Wong, T. Olubodun, Uchenna Gwacham-Anisiobi +7 more

    2023Health technology7 citations Open access

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49. Approaches to defining health facility catchment areas in sub-Saharan Africa

    P. Macharia, J. N. Odhiambo, E. Mumo, A. Maina +2 more

    2022medRxiv7 citations Open access

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50. Improving complex health systems and lived environments for maternal and perinatal well-being in urban sub-Saharan Africa: the UrbanBirth Collective

    Mena Komi Christian Anteneh Elias Martinien Catherine J Agbodjavou Agossou Asefa Avahoundje Birabwa Bonane, M. K. Agbodjavou, C. Agossou, A. Asefa +38 more

    2025Journal of Global Health6 citations Open access

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