EdwardAkurugu/GAMM-MAP

Interactive R Shiny dashboard for regional GAM and GAMM analysis of temporal and climatic drivers of uncomplicated malaria in Ghana (GAM(M)‑MAP), developed alongside the manuscript "Temporal and climatic drivers of uncomplicated malaria in Ghana: Regional GAM and GAMM analysis." # GAM(M)-MAP: GAM(M)-Based Malaria Analytics Platform Temporal and Climatic Analysis of Uncomplicated Malaria in Ghana Regional Generalised Additive and Generalised Additive Mixed Model framework for malaria epidemiology --- ## Overview **GAM(M)-MAP** is an interactive R Shiny dashboard built to accompany the research article: > **Akurugu E., Awine T., Seidu B., Peprah N.Y., Mohammed W., Boateng P., Abiwu P.H.A.K., Silal S.P.** > *Temporal and climatic drivers of uncomplicated malaria in Ghana: Regional Generalised Additive and Generalised Additive Mixed Model analysis.* > PLOS ONE (under review), 2026. The platform enables users to explore regional malaria case patterns across Ghana's ten former administrative regions (2012–2023), investigate nonlinear relationships between climate variables and malaria, and interact with fitted GAM and GAMM model outputs — all through an intuitive browser-based interface. --- ## Background Malaria remains endemic across all of Ghana and is influenced by diverse seasonal and climatic factors. This project applies GAMs and GAMMs, fitted with a negative binomial distribution to: - Capture **nonlinear** relationships between malaria cases and climate (rainfall, temperature) variables - Decompose **long-term trend**, **seasonality**, and **temporal interactions** - Correct for **residual serial autocorrelation** where present, using corARMA(p,q) correlation structures within a GAMM framework - Deliver **region-specific** insights across Ghana's three ecological zones: - **Guinea Savannah** (Upper East, Upper West, Northern) — unimodal malaria peak - **Transitional Forest** (Brong Ahafo, Ashanti, Eastern, Volta) — bimodal malaria peaks - **Coastal** (Greater Accra, Central, Western) — bimodal malaria peaks --- ## Features | Tab | Description | |-----|-------------| | **Welcome** | Platform overview, objectives, and getting-started guide | | **About** | Study background, ecological zones map, and data sources | | **Help …