Figure: Global number of people with depression and anxiety disorders in 2005, 2015, and 2020. Both conditions show substantial growth in reported cases over time, with a particularly sharp increase during 2020 coinciding with the COVID-19 pandemic (approximate figures based on WHO global health estimates).
Presented by Zia H Shah MD
Introduction
Mental health conditions like anxiety and depression have become increasingly recognized as major public health issues over the past two decades. Globally, the number of people living with depression exceeded 300 million by the mid-2010s – an increase of about 18% from 2005 to 2015. Anxiety disorders are similarly widespread, affecting roughly a similar magnitude of people (estimated ~260 million in 2015). These conditions impose a high individual and societal burden, contributing to reduced quality of life and economic costs of up to 4% of GDP in some countries. Crucially, data indicate that reported prevalence rates for both anxiety and depression have generally trended upward from 2005 to 2019, followed by a sharp spike in 2020 coinciding with the COVID-19 pandemic. In this report, we examine the prevalence trends in the United States, Europe, Australia, and other major countries (e.g. Canada, China, India, Brazil), highlighting changes over time and the impact of significant events on mental health trends. Key data from authoritative sources (WHO, OECD, national surveys, peer-reviewed studies) are used to compare how these trends play out across regions.
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Categories: Demographics, Psychology