Neighborhood size and local geographic variation of health and social determinants

Table 3 Descriptive statistics and results of variance ratio (F_max) test for the ethnicity status under various neighborhoods, Khanh Hoa Province, Vietnam, 2002. (n = 32,542)

r ^†	Population size			Incidence Rate/10000 Population				Upper F_max Test			Lower F_max Test
	Min	Max	Mean	Min	Max	Mean	Variance	F_max1	DF₁ *	CV₁ **	F_max2	DF₂ *	CV₂ **
100	1	1859	195	.00	100.00	7.283	243.304	4.026	20	1.571	1.000	1	3.842
200	1	5681	611	.00	100.00	7.344	183.209	3.032	19	1.587	1.328	2	2.996
300	1	8362	1143	.00	100.00	7.383	153.024	2.532	18	1.604	1.590	3	2.605
400	2	11276	1785	.00	100.00	7.402	133.603	2.211	17	1.623	1.821	4	2.372
500	2	15425	2504	.00	100.00	7.467	121.327	2.008	16	1.644	2.005	5	2.214
600	2	20047	3282	.00	88.57	7.534	112.520	1.862	15	1.667	2.162	6	2.099
700	2	23875	4146	.00	88.57	7.609	105.353	1.744	14	1.692	2.309	7	2.010
800	2	28601	5075	.00	82.50	7.682	99.320	1.644	13	1.720	2.450	8	1.939
900	2	33159	6055	.00	75.00	7.719	93.729	1.551	12	1.752	2.596	9	1.880
1000	4	36182	7081	.00	69.49	7.745	88.828	1.470	11	1.789	2.739	10	1.831
1100	9	39576	8129	.00	63.73	7.761	84.867	1.404	10	1.831	2.867	11	1.789
1200	25	43628	9194	.00	62.40	7.776	81.459	1.348	9	1.880	2.987	12	1.752
1300	25	47769	10297	.00	62.40	7.793	78.140	1.293	8	1.939	3.114	13	1.720
1400	25	49747	11427	.00	61.91	7.801	74.610	1.235	7	2.010	3.261	14	1.692
1500	25	51108	12580	.00	60.84	7.820	71.456	1.183	6	2.099	3.405	15	1.667
1600	66	52454	13750	.00	58.06	7.851	69.027	1.142	5	2.214	3.525	16	1.644
1700	128	53725	14925	.00	50.55	7.873	66.823	1.106	4	2.372	3.641	17	1.623
1800	138	55422	16133	.00	46.79	7.891	64.531	1.068	3	2.605	3.770	18	1.604
1900	138	57913	17398	.00	44.54	7.907	62.339	1.032	2	2.996	3.903	19	1.587
2000	148	59428	18708	.00	39.71	7.915	60.426	1.000	1	3.842	4.026	20	1.571

^† r = size of neighborhood in meter radius
* DF = degrees of freedom
**CV₁ and CV₂ = critical values at 95% confidence level for Upper F_max and Lower F_max respectively Bold figures in F_max1 and F_max2 are the upper and lower limit of optimal neighborhoods, and the bold figure in "r" column is the choice of optimal neighborhood size.

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