An effective and efficient approach for manually improving geocoded data

Table 5 Processing time for overall dataset and processing time (sec) and spatial shift (km) for improved records only

Dataset	Overall Processing Time (s)	Improved Records Only Processing Time (s)	Improved Records Only Spatial shift (km)
	t total t avg t min t max t std	t total t avg t min t max t std	d avg d min d max d std
Hospitals	30,498	26,733	.5
	73	74.3	0
	7	7	6.6
	1,524	1,524	1
	136.3	143.16
Radiation	403,264	369,799	5.54
	200.5	196.2	0
	5	5	666.2
	4,511	4,511	45.7
	136.3	256
PD	922,355	634,510	11.6
	52.8	71.9	0
	0	1	6,398.8
	4,717	4,717	109.4
	110.57	127.9
Prostate Res.	117,969	72,380	12.2
	60.7	86.4	.1
	0	2	870
	4,244	4,244	58
	157.5	193.2
Prostate Occ.	65,504	60,046
	138.5	161.4
	5	9	N/A
	2,287	2,287
	221	233.3
Overall	1,538,681	1,163,468	9.9
	69	94.8	0
	0	1	6,398.8
	4,717	4,717	94.4
	145.5	169.4

t = time taken (sec) for processing; d = distance (km) offset between corrected and uncorrected geocodes

ISSN: 1476-072X