gp-clusters

Julian Flowers
14th April 2016

GP dataset

'data.frame':   7750 obs. of  11 variables:
 $ practice: chr  "A81007" "A81008" "A81009" "A81011" ...
 $ ccg     : chr  "NHS Hartlepool And Stockton-On-Tees CCG" "NHS South Tees CCG" "NHS South Tees CCG" "NHS Hartlepool And Stockton-On-Tees CCG" ...
 $ 0-4     : num  5.28 5.99 6.66 5.53 7.32 ...
 $ 5-14    : num  12.5 11 12.1 10.6 12 ...
 $ <18     : num  21.5 20.5 22.6 19.7 22.9 ...
 $ 65+     : num  18.6 16.6 14.7 18.6 14.3 ...
 $ 75+     : num  9.26 7.73 6.72 8.51 7.34 ...
 $ 85+     : num  2.71 2.06 1.82 1.92 1.79 ...
 $ imd     : num  31.7 51.9 35.5 34.8 49.7 ...
 $ pop     : int  9525 4088 9265 11285 4756 6077 3786 3021 9505 21147 ...
 $ eth     : num  0.974 0.956 0.87 0.977 0.91 ...

Explore the data

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These charts show the relationship between the demographic variables. We can see that there are strong correlations between 65+, 75+, and 85+ populations, and <18 and 5-14.

For the sake of parsimony, we will use 75+ and 5-14.

Cluster analysis

Number_clusters     Value_Index 
        15.0000          0.2028

Colour dendrogram

k-means analysis

luster size

Smallest cluster has 56 practices
Largest has 1079

Cluster characteristics

clust	0-4	5-14	65+	75+	85+	imd	pop	eth	size
10	5.06	11.20	20.38	8.98	2.59	12.75	5512.78	0.94	1054
12	4.76	10.39	23.83	11.09	3.31	14.01	10943.64	0.96	741
4	5.32	10.17	19.12	8.62	2.41	28.75	4145.22	0.92	728
1	7.01	12.69	13.61	5.86	1.69	17.19	5540.70	0.87	719
15	6.00	11.22	18.13	8.22	2.33	27.92	10082.02	0.92	705
7	6.01	11.57	17.44	7.88	2.34	14.12	13979.04	0.91	631
2	3.93	9.08	28.24	13.37	4.04	16.50	4923.83	0.96	604
8	6.84	12.51	14.21	6.28	1.67	42.92	4903.61	0.87	587
11	7.27	13.62	9.42	4.33	1.10	32.08	5319.93	0.42	500
3	5.72	9.74	10.43	4.72	1.24	28.38	5257.22	0.54	469
5	9.70	15.12	8.34	3.48	0.95	36.96	4450.73	0.82	283
6	7.63	13.16	10.96	5.02	1.42	28.26	12837.59	0.65	269
14	9.48	18.47	6.60	3.13	0.77	43.68	5303.04	0.37	245
13	3.02	4.57	6.90	2.98	0.86	23.84	9058.90	0.73	159
9	5.19	9.91	16.29	7.41	2.16	19.53	28190.84	0.89	56

Plotting clusters

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