Fig. 2
From: Does the edge effect impact on the measure of spatial accessibility to healthcare providers?
Spatial distribution of ISA when offer and demand outside are included or excluded. ISA distribution is showed for GPs (a), midwives (b) and gynecologists (c) and combined in the composite index (d). For each map, neighboring departments are colored in yellow and the department of Nord is colored using a graduated approach (according to Jenks’ Natural Breaks), showing different ISA scales at IRIS level, expressed per 100,000 inhabitants. The 1362, 2425 and 2583 Neighboring IRIS added to the ISA calculation for GPs, midwives and gynecologists when edge effect included are colored purple, green and khaki respectively