![]() ![]() Google describes a topic as “a group of terms that share the same concept in any language”. We refined our search by selecting the ‘topic’ instead of the ‘search term’ option. For World Diabetes Day and World AIDS Day, the search inputs “Diabetes mellitus” and “HIV/AIDS” were selected over “Diabetes” and “AIDS”, as the former search inputs were the ‘topics’ set by Google. For instance, to investigate OHISB related to Global Mental Health Day, the search term “Mental health” was chosen over alternatives such as “psychological wellbeing”. The disease or health concern included in the name of the GPHD was prioritised over a synonym or phrase with a similar meaning. ![]() Search inputs were selected to best measure OHISB representative of the GPHD in question. The use of a capital letter at the start of each search input was consistent across the four searches. Search inputs with more than one word were not queried with quotation marks. The terms were not used in combination with a plus or minus sign. The full search inputs queried on Google Trends for which data was downloaded were:, ,, and. We aim to assess the hypothesized causal relationship between GPHDs and OHISB in five CSA countries (Uruguay, Chile, Brazil, Colombia, Nicaragua) using Google Trends data. They are the target of the GPHDs World Cancer Day, World Diabetes Day, World Mental Health Day, and World AIDS Day. Lower and some upper middle-income countries, are less developed in the epidemiological transition.Ī large degree of the disease burden in CSA is attributed to cancer, diabetes mellitus, mental health and HIV/AIDS. A more recent epidemiological transition is evident in upper-middle income countries, where the NCD burden picked up in the 1980s. ![]() In developed countries, the epidemiological transition is considered to be “complete” NCDs have prevailed since the 1950s and the threat of infectious diseases is well managed. ![]() ĬSA encompasses sociocultural, political and economic diversity, and experiences stark health inequalities despite reforms for universal health coverage. Due to significant social, demographic and economic changes that have occurred heterogeneously across Central and South America (CSA), the region is experiencing different stages of the epidemiological transition simultaneously. This is the rising prevalence of non-communicable diseases (NCDs), alongside the persisting threat from infectious diseases, as well as accidental injuries and problems related to globalisation. Most of the developing world is experiencing an epidemiological transition resulting in a triple burden of disease profile. It uses this data to provide a relative search volume (RSV), which is the query share of a particular term for a given location and time period, normalised by the highest query share of that search term. GT determines the proportion of searches for a user specified search term among all searches performed with Google. GT analyses Google searches, generating data on the geographical and temporal search patterns according to specified keywords. Through Google Trends (GT Alphabet Inc, Mountain View CA, USA), a free and publicly accessible tool, it is possible to access such data. Trends in web search terms can provide valuable insight into population health seeking behaviour, as well as collective health trends. Consequently, alternative real-time health-related surveillance of how people interact with health information disseminated through GPHDs is sought.Īs the internet has become a key source for health-related information, online health-information seeking behaviour (OHISB) can be used as a “surrogate” measure of disease awareness in the context of public awareness. The effectiveness of public health initiatives can be difficult to quantify without bespoke, large scale data collection, which is costly, untimely, and often limited in terms of geographical scope. But despite the frequency with which GPHDs are developed and implemented, relatively little research has examined their reach and impact. As a preventive strategy, they have great potential to alleviate the global burden of disease. Global public health days (GPHD) are international health awareness campaigns that aim to draw attention to specific conditions or health-related themes. Disease prevention and health promotion campaigns are communication activities that aim to raise awareness of specific health topics and influence health behaviour. ![]()
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