Table 1.

Summary of clusters including relative risk, log likelihood ratio and p-value.

Cluster	Relative risk	Log likelihood ratio	P-value
1	1.54	44.504679	0.001
2	1.53	26.568310	0.001
3	1.34	13.654698	0.003
4	1.38	12.143518	0.013
5	1.45	11.350351	0.021
6	1.46	9.770844	0.094
7	1.51	8.619205	0.274
8	1.37	8.025044	0.404
9	1.31	7.421699	0.544
10	1.51	7.382095	0.616
11	1.51	6.970157	0.728
12	1.51	6.970157	0.728
13	1.51	6.558434	0.848
14	1.35	6.492181	0.854
15	1.51	5.735634	0.975
16	1.29	5.413135	0.982
17	1.51	5.324557	0.994
18	1.51	5.324557	0.994