Table 1.

Descriptive statistics and cross-correlations (temperature and precipitation) for monthly campylobacteriosis risk estimates per 100,000 population in Georgia, climate divisions 1–9, and combined divisions 1–3, 4–6, and 7–9

Area Division/combination	Risk range per 100,000		Mean risk (standard deviation)	Zero values (# in dataset)	Trend (P < 0.05)	Cross-correlationsa
						Temperature				Precipitation
						Lag: 0	Lag: 1	Lag: 6	Lag: 12	Lag, CC
Georgia	0.24	1.19	0.59 (0.20)	None	Down	0.71	0.57	−0.72	0.69	0, 0.31
1	0.00	2.97	0.78 (0.50)	2b	Up	0.44	0.47	−0.48	0.46	4, −0.15
2	0.13	1.38	0.63 (0.24)	None	Down	0.53	0.41	−0.51	0.52	0, 0.17
3	0.00	4.97	0.99 (0.78)	19b	–	0.34	0.26	−0.34	0.32	0, 0.28
4	0.00	1.09	0.37 (0.22)	3b	Down	0.40	0.33	−0.44	0.45	8, −0.18
5	0.00	1.58	0.45 (0.33)	8b	–	0.43	0.33	−0.50	0.42	0, 0.13
6	0.00	1.92	0.36 (0.32)	25b	–	0.31	0.15	−0.39	0.33	0, 0.29
7	0.00	3.90	0.69 (0.59)	18b	–	0.35	0.33	−0.31	0.32	0, 0.16
8	0.00	2.18	0.84 (0.49)	6b	–	0.38	0.30	−0.35	0.33	1, 0.19
9	0.00	2.03	0.67 (0.43)	4	–	0.50	0.40	−0.45	0.41	6, −0.35
1, 2, and 3	0.22	2.13	0.79 (0.36)	None	–	0.58	0.48	−0.58	0.56	0, 0.31
4, 5, and 6	0.07	1.17	0.40 (0.22)	None	–	0.54	0.38	−0.62	0.54	0, 0.19
7, 8, and 9	0.08	1.58	0.72 (0.34)	None	–	0.60	0.50	−0.55	0.52	0, 0.22

^aStrongest cross-correlations for temperature (lag 0, 1, 6, and 12) and precipitation (varies) are reported

^bSome zero values are located in the last 24 months of data (2007–2008)