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Table 6 Spearman rank correlation coefficients (r) and proportion of facilities identified as closest (%) between measures calculated from compound compared to measures calculated from village centroid, n = 9,306 births

From: Methods to measure potential spatial access to delivery care in low- and middle-income countries: a case study in rural Ghana

Distance measure Closest delivery facility Closest CEmOC facility
r % r %
Euclidean (km) 0.8296 87.8 0.9647 97.7
Network distance (km) 0.8263 88.6 0.9680 98.7
Mechanized network time (hr) 0.7071 86.2 0.8512 97.5
Non-mechanized network time (hr) 0.8324 88.6 0.9708 98.7
Mechanized raster time (hr) 0.5243 86.7 0.6580 97.4
Non-mechanized raster time (hr) 0.8377 85.7 0.9672 98.7