Market research companies collect and maintain sales data for thousands of consumer items, including pesticide products for manufacturers and retailers.
Design: Weekly sales data for a sample of pre-packaged food items were obtained and analyzed, spanning three semesters before and three semesters after nutritional labels were introduced on to the sample of foods.
For instance, as Nike strives to meet localized demand, a floor showcases items that represent top-selling products in the New York area, which Nike gleans from online and other sales data as part of its Nike Live initiative.
To adjust for this, an underlying seasonal trend in proportional sales was fitted to log-transformed retail sales data from the beginning of February 2008 to the end of January 2009.
Nineteen studies retrospectively compared drug sales data to gold standard reference data of the disease.
Analyses of national sales data from Germany and France are summarized in Figure 3 (19, 19).
29 The 'triangulation' of survey and sales data on alcohol to harmonise the survey-based consumption distribution with sales-derived per capita consumption has been demonstrated.
We did not include antihistamine sales data in the model because fewer than half of all consultations resulted in a sale.
Sales of unprocessed foods (i.e., excluding packaged and processed products) were based on aggregating sales data for fresh eggs, fruits, meats, nuts, seafood, and vegetables.
Despite limitations associated with pesticide tracking through point-of-sale data, such as availability of sales data, market coverage, and geographic resolution, this type of database is still sensitive to relative trends in pesticide sales.
Increasing the years of sales data prior to the pandemic period would have provided a more robust estimate of sales trend in a typical year.
