Spatial accessibility of primary health care utilising the two step floating catchment area method: an assessment of recent improvements

Table 2 Distribution of crude access (2SFCA) scores and resulting change of access scores with the addition of three different distance-decay functions, by population size

	Access category (A_iscore range)
	1>0.0012	2>0.001	3>0.0009	4>0.0008	5>0.0007	6>0.0006	7>0.0005	8>0.0004	9>0.0003	10<0.0003
Crude access (2SFCA) score distribution ^1
>100K	17	2012	1049	17	64	59	10	23	0	10
25-100K	28	0	34	61	38	99	49	0	0	0
5-25K	12	44	66	55	30	27	23	26	3	18
1.5-5K	0	32	28	34	24	15	19	7	3	11
<1.5K	10	44	67	92	66	85	61	44	34	30
Slow step-decay (net change from crude 2SFCA) ^2
>100K	992	−1115	−484	182	302	4	42	46	29	1
25-100K	−28	63	45	21	−32	−45	−49	25	0	0
5-25K	−2	4	−16	−10	−12	19	44	−8	−2	−18
1.5-5K	6	−17	−11	−11	3	7	−6	15	20	−5
<1.5K	−7	−26	−36	−45	−2	−21	27	38	28	44
Continuous decay (net change from crude access scores) ^2
>100K	694	−878	−374	306	190	−23	11	36	37	1
25-100K	−28	51	45	33	−32	−45	−49	25	0	0
5-25K	−3	17	−19	2	7	28	7	−25	5	−18
1.5-5K	4	−18	−11	−2	3	8	−2	18	1	−2
<1.5K	−6	−21	−38	−35	12	3	6	30	13	37
Fast step-decay (net change from crude access scores) ^2
>100K	1039	−1338	−344	165	142	188	84	49	14	1
25-100K	−25	113	54	−44	−2	−99	−21	0	25	0
5-25K	3	32	−19	−17	−20	46	−3	−20	15	−17
1.5-5K	10	−12	−9	−12	−2	−2	−9	22	10	6
<1.5K	−1	−23	−45	−59	−16	−25	−10	44	39	95

All figures within the table are ‘000s.
^1: These values represent the size (‘000s) of the population with these access scores. Row totals correspond to the total Victorian population residing in the 5 population size groups.
^2: These values represent the net population change (‘000s) within each population size group to the corresponding access scores following the addition of each distance-decay function. Negative values indicate a net drop in the number of residents with access scores in that category. All row totals equal 0.

ISSN: 1476-072X