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. 2021 Jul 12;129(7):076002. doi: 10.1289/EHP7381

Figure 4.

Figure 4 is a heat map plotting a survey of human studies that met populations, exposures, comparators, and outcomes criteria, organized by route of exposure, population, and health systems evaluated. For the inhalation route of exposure, studies were available for occupational, general population, and children. For nonspecific routes of exposure, studies were available for occupational, general population, pregnant women or infants, and children. The number of studies is shown for each health system, including cardiometabolic, developmental, endocrine or exocrine, gastrointestinal, hematological, hepatic, immunological, nasal, neurological, pulmonary, and reproductive. The final column shows the grand total for each health system and overall grand total. Below, on the bottom left, a scale is depicting number of references, ranging from 1 to 6 in increment.

Survey of human studies that met PECO criteria, organized by route of exposure, population, and health systems evaluated. Numbers represent the number of references that investigated a health system, not the number of references that identified an association with exposure to naphthalene. If a reference evaluated multiple health systems, it is shown here multiple times. Column totals, row totals, and grand total indicate total numbers of distinct references. See the “Human Evidence” tab in the interactive dashboard in Tableau Public for a more detailed description of study design and results (https://public.tableau.com/views/NaphthaleneEvidenceMap/ReadMe?:language=en&:display_count=y&publish=yes&:origin=viz_share_link). Note: PECO, populations, exposures, comparators, and outcomes.