Prisma Flow Diagram

\documentclass{article}
\usepackage{prisma-flow-diagram/prisma-flow-diagram} % Load the PRISMA Flow Diagram package

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Variables Section
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Modify the values below to update the PRISMA diagram
\newcommand{\recordsIdentified}{251}       % Records identified through database searching
\newcommand{\otherSources}{0}              % Additional records identified through other sources
\newcommand{\afterDuplicates}{41}          % Records after duplicates removed
\newcommand{\recordsScreened}{210}         % Records screened
\newcommand{\recordsExcluded}{175}         % Records excluded
\newcommand{\fullTextAssessed}{35}         % Full-text articles assessed for eligibility
\newcommand{\fullTextExcluded}{4}          % Full-text articles excluded, with reasons
\newcommand{\notRelevant}{3}               % Not Relevant papers
\newcommand{\notOpenAvailable}{2}          % Not Open/Available papers
\newcommand{\qualitativeSynthesis}{30}     % Studies included in qualitative synthesis
\newcommand{\quantitativeSynthesis}{30}    % Studies included in quantitative synthesis (meta-analysis)

\begin{document}

\title{PRISMA 2020 Flow Diagram}
\author{Overleaf Template}
\date{\today}

\maketitle

\section{Introduction}
This document provides a PRISMA 2020 Flow Diagram for systematic reviews. Modify the values in the \textbf{Variables Section} to update the flowchart dynamically.

\begin{figure}[H]
\resizebox{\textwidth}{!}{
\prismaflowstart

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% PRISMA Flow Diagram Structure
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% Identification Phase
\prismaflownode{n1a}{left=of tc}{Records identified through database searching (n = \recordsIdentified)}{};
\prismaflownode{n1b}{right=of tc}{Additional records identified through other sources (n = \otherSources)}{};
\prismaflownode{n2}{below=of tc |- n1a.south}{Records after duplicates removed (n = \afterDuplicates)}{n1a};
\prismaflowarrow{n1b}{n2}; % Arrow connecting sources to filtered records

% Screening Phase
\prismaflownode{n3}{below=of n2}{Records screened (n = \recordsScreened)}{n2};
\prismaflownode{n3r}{right=of n3}{Records excluded (n = \recordsExcluded)}{};
\prismaflowarrow{n3}{n3r};

% Eligibility Phase
\prismaflownode{n4}{below=of n3}{Full-text articles assessed for eligibility (n = \fullTextAssessed)}{n3};
\prismaflownode{n4r}{right=of n4}{Full-text articles excluded, with reasons (n = \fullTextExcluded) \\ - Not Relevant (n = \notRelevant) \\ - Not Open/Available paper (n = \notOpenAvailable)}{};
\prismaflowarrow{n4}{n4r};

% Inclusion Phase
\prismaflownode{n5}{below=of n4}{Studies included in qualitative synthesis (n = \qualitativeSynthesis)}{n4};
\prismaflownode{n6}{below=of n5}{Studies included in quantitative synthesis (meta-analysis) (n = \quantitativeSynthesis)}{n5};

% Labels for each section
\prismalabel{1.3*\mh}{n1a.west}{Identification};
\prismalabel{1.3*\mh}{n1a.west |- {$(n2)!0.6!(n3)$}}{Screening};
\prismalabel{1.3*\mh}{n1a.west |- {$(n4)!0.2!(n5)$}}{Eligibility};
\prismalabel{1.3*\mh}{n1a.west |- n6}{Included};

\prismaflowend
}
\caption{PRISMA 2020 Flow Diagram}
\label{fig:prisma}
\end{figure}

\section{Instructions}
1. \textbf{To update the numbers}, change the values in the \textbf{Variables Section} at the beginning of the document.
2. \textbf{Recompile the document} in Overleaf, and the diagram will automatically update.
3. \textbf{Ensure the PRISMA package is installed}

\section{Conclusion}
This template simplifies the creation of PRISMA flow diagrams in Overleaf. It ensures \textbf{consistency and ease of updating} for systematic reviews.

\end{document}