Table 2.

Incremental change in suicide rates after Network establishment

	IRR	95% CI	p
Time (linear)a	0.9925	0.9876 to 0.9975	0.003
Time (quadratic)b	1.0001	1.0000 to 1.0002	0.001
Site (Network vs. control)	1.14	1.00 to 1.30	0.052
Season (Quarter in yeard)
1st	0.99	0.94 to 1.04	0.640
2nd	0.91	0.87 to 0.96	0.001
3rd	0.96	0.91 to 1.01	0.092
Time after Network establishmentc
1st quarter	0.96	0.78 to 1.18	0.677
2nd quarter	0.96	0.78 to 1.18	0.701
3rd quarter	0.83	0.71 to 0.98	0.030
4th quarter	0.90	0.75 to 1.09	0.281
5th quarter onwards	0.94	0.87 to 1.01	0.091

a. Measured in elapsed quarters since January 2001, power is 1

b. Measured in elapsed quarters since January 2001, power is 2

c. Before Network establishment is the reference category

d. Quarter 4 is the reference category