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geethamalika/README.md
Geetha Malika, PharmD, MPH
Epidemiologist decoding the chaos of real-world data

LinkedIn


About Me

Real-World Evidence (RWE) and Health Economics & Outcomes Research (HEOR) professional with experience across direct patient care, pharmacovigilance, and real-world data analytics. I design and execute global RWD studies using rigorous epidemiologic and causal inference methods, with a focus on reproducible analysis and clear interpretation for decision-making.

Research & Methods

Area Focus
Causal inferenceTarget trial emulation, MSMs, g-formula, IPTW, instrumental variables
Bayesian methodsHierarchical models, Stan, PyMC
RWE & comparative effectivenessRCT duplication, emulation, prediction and risk modeling
DataClaims, EHR, registries (SEER), NHANES, OMOP CDM
ImplementationPython, R, SQL, Stata

Selected Projects

Project Description
Causal Inference TutorialsTarget trial emulation, MSMs, g-formula, SNMs (Python)
Pregnancy Cohort ToolkitR toolkit for pregnancy cohort construction from claims/EHR
Clone–censor–weight (CCW)Immortal time bias: clone–censor–weight with simulated data (Python)
GFORMULA-SASParametric g-formula for time-varying treatments and confounders (SAS)
Depression and ObesityCausal analysis of depression and obesity using NHANES

Beyond Work

The Emperor of All Maladies: A Biography of Cancer — Siddhartha Mukherjee

Interested in causal inference, real-world evidence, and oncology applications.

Popular repositories Loading

  1. GFORMULA-SAS GFORMULA-SAS Public

    The GFORMULA macro implements the parametric g-formula in SAS. The parametric g-formula (Robins, 1986) uses longitudinal data with time-varying treatments and confounders to estimate the risk or me…

    SAS 1

  2. geethamalika geethamalika Public

    Config files for my GitHub profile.

  3. Impact_of_Depression_on_Obesity Impact_of_Depression_on_Obesity Public

    A causal inference study on the impact of depression on obesity outcomes using NHANES data

  4. causal_lab causal_lab Public

    Causal inference studies

  5. pregnancy-cohort-r pregnancy-cohort-r Public

    R toolkit for pregnancy cohort construction from claims/EHR data for pharmacoepidemiologic research

    R

  6. causal-inference-tutorials causal-inference-tutorials Public

    Hands-on Python tutorials for learning causal inference methods

    Python