Health Calculator helps to find different parameters like basal metabolic rate, body mass index etc. related to fitness and health of a person.

Antitrust analysis of
    healthcare markets. Contains functions to implement the 
    semiparametric estimation technique described in Raval, Rosenbaum,
    and Tenn (2017) "A Semiparametric Discrete Choice Model: An Application
    to Hospital Mergers" <doi:10.1111/ecin.12454>.

A system for identifying diseases or events from healthcare databases and
    preparing data for epidemiological studies. It includes capabilities not
    supported by 'SQL', such as matching strings by 'stringr' style regular
    expressions, and can compute comorbidity scores (Quan et al. (2005)
    <doi:10.1097/01.mlr.0000182534.19832.83>) directly on a database server. The
    implementation is based on 'dbplyr' with full 'tidyverse' compatibility.

Compute 21 summary measures of health inequality and its
    corresponding confidence intervals for ordered and non-ordered
    dimensions using disaggregated data. Measures for ordered dimensions
    (e.g., Slope Index of Inequality, Absolute Concentration Index) also
    accept individual and survey data.

Provides a shiny interface for a free, open-source managerial
    accounting-like system for health care practices. This package allows
    health care administrators to project revenue with monthly adjustments
    and procedure-specific boosts up to a 3-year period. Granular data
    (patient-level) to aggregated data (department- or hospital-level) can
    all be used as valid inputs provided historical volume and revenue
    data is available. For more details on managerial accounting
    techniques, see Brewer et al. (2015, ISBN:9780078025792).

This R package has been developed with a focus on air pollution and noise but can be applied to other exposures. The initial development has been funded by the European Union project BEST-COST. Disclaimer: It is work in progress and the developers are not liable for any calculation errors or inaccuracies resulting from the use of this package.
 Selection of relevant references (in chronological order): 
 WHO (2003) <https://www.who.int/publications/i/item/9241546204>, 
 Murray et al. (2003) <doi:10.1186/1478-7954-1-1>, 
 Miller & Hurley (2003) <doi:10.1136/jech.57.3.200>, 
 Steenland & Armstrong (2006) <doi:10.1097/01.ede.0000229155.05644.43>, 
 WHO (2011) <https://iris.who.int/items/723ab97c-5c33-4e3b-8df1-744aa5bc1c27>,
 GBD 2019 Risk Factors Collaborators (2020) <doi:10.1016/S0140-6736(20)30752-2>.