gp-clusters

Julian Flowers
14th April 2016

First Slide

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Bullet 1
Bullet 2
Bullet 3

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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Explore the data

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

Plotting clusters

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