Observational Study
Copyright ©The Author(s) 2024.
World J Methodol. Mar 20, 2024; 14(1): 89853
Published online Mar 20, 2024. doi: 10.5662/wjm.v14.i1.89853
Figure 2
Figure 2 Plots of artificial light at night exposure percentages (vertical scale), by area or population. A: By gross domestic product per person quartile; B: By health expenditure per person quartile; boxplots are framed by the 25thand 75th percentile. GDP: Gross domestic product; HEP: Health expenditure per person.