Table 2.

Spatiotemporal suicide cluster characteristics

	State	No. of Counties	Observed cases	Expected cases	RR	p value	Dates
1	Arizona, Nevada and Utah	6	1549	911.72	1.72	< 0.001	7/1/2014–12/31/2016
2	Colorado	11	1264	790.33	1.61	< 0.001	7/1/2014–12/31/2016
3	Utah	3	913	537.69	1.71	< 0.001	7/1/2014–12/31/2016
4	New Mexico and Arizona	14	761	487.17	1.57	< 0.001	7/1/2014–12/31/2016
5	Arizona	4	730	502.87	1.46	< 0.001	1/1/2014–6/30/2016
6	Wyoming and Colorado	8	537	350.04	1.54	< 0.001	7/1/2014–12/31/2016
7	Nevada	1	265	142.48	1.86	< 0.001	7/1/2014–12/31/2016
8	Colorado	1	118	46.6	2.54	< 0.001	1/1/2011–6/30/2013
9	Alaska	2	212	112.85	1.88	< 0.001	7/1/2014–12/31/2016
10	Oklahoma	1	321	201.37	1.6	< 0.001	1/1/2014–6/30/2016
11	Oklahoma	2	483	334.34	1.45	< 0.001	7/1/2014–12/31/2016
12	Idaho	2	255	164.7	1.55	< 0.001	1/1/2015–12/31/2016
13	Montana	5	122	68.68	1.78	< 0.001	7/1/2011–6/30/2013
14	Montana	1	95	49.95	1.9	< 0.001	7/1/2014–12/31/2016
15	Idaho	1	75	37.85	1.98	< 0.001	1/1/2014–12/31/2015
16	Wyoming	1	49	20.69	2.37	< 0.001	1/1/2014–12/31/2015
17	Oklahoma	1	23	6.31	3.64	< 0.001	7/1/2015–6/30/2016
18	Arizona	1	22	6.72	3.27	< 0.001	7/1/2014–6/30/2015
19	Idaho	1	56	28.03	2	< 0.001	7/1/2014–6/30/2016