season

This function determines the season (Winter, Spring, Summer, or Fall) based
on an input date.
The seasons are assigned based on geographic regions similar to how seasons
occur in the United States.
The seasons are determined using the month of the year and
the traditional meteorological definition of seasons (Winter: December,
January, February; Spring: March, April, May; Summer: June, July, August;
Fall: September, October, November).

Hospitals, hospital systems, and even trauma systems that
provide care to injured patients may not be aware of robust metrics
that can help gauge the efficacy of their programs in saving the lives
of injured patients. 'traumar' provides robust functions driven by
the academic literature to automate the calculation of relevant
metrics to individuals desiring to measure the performance of their
trauma center or even a trauma system. 'traumar' also provides some
helper functions for the data analysis journey. Users can refer to the
following publications for descriptions of the methods used in
'traumar'. TRISS methodology, including probability of survival, and
the W, M, and Z Scores - Flora (1978)
<doi:10.1097/00005373-197810000-00003>, Boyd et al. (1987,
PMID:3106646), Llullaku et al. (2009) <doi:10.1186/1749-7922-4-2>,
Singh et al. (2011) <doi:10.4103/0974-2700.86626>, Baker et al. (1974,
PMID:4814394), and Champion et al. (1989)
<doi:10.1097/00005373-198905000-00017>. For the Relative Mortality
Metric, see Napoli et al. (2017) <doi:10.1080/24725579.2017.1325948>,
Schroeder et al. (2019) <doi:10.1080/10903127.2018.1489021>, and
Kassar et al. (2016) <doi:10.1177/00031348221093563>. For more
information about methods to calculate over- and under-triage in
trauma hospital populations and samples, please see the following
publications - Peng & Xiang (2016) <doi:10.1016/j.ajem.2016.08.061>,
Beam et al. (2022) <doi:10.23937/2474-3674/1510136>, Roden-Foreman et
al. (2017) <doi:10.1097/JTN.0000000000000283>.

Nicolas Foss

traumar

Calculate Metrics for Trauma System Performance

Iowa Department of Health and Human Services 

season function

<dl><dt>input_date</dt>
<dd>A Date or POSIXct object representing the date to determine
the season for. The input must be of class <code>Date</code> or <code>POSIXct</code>.</dd></dl>

Arguments

Author

Get Season Based on a Date — season

<dl>

<dt>input_date</dt>
<dd>A Date or POSIXct object representing the date to determine
the season for. The input must be of class <code>Date</code> or <code>POSIXct</code>.</dd>

</dl>

season: Get Season Based on a Date

Description

Usage

Value

Arguments

Author

Examples