Asymmetric Effects of Weather-Integrated Human Brucellosis Forecasting System Using a New Nonlinear Autoregressive Distributed Lag Model

Table 1

Statistical descriptions for monthly HB cases and climatic factors in Henan, 2005–2020.

Variable	Mean	SD	Min	P25	P50	P75	Max	VIF
HB cases	182.26	182.62	0.00	38.00	119.50	254.25	794.00	—
ARH	65.61	9.68	39.40	59.43	65.38	73.53	84.50	3.47
AP	60.52	58.15	0.31	17.33	41.17	87.97	307.40	3.17
AT	15.49	9.36	−1.23	6.91	16.48	24.69	30.90	18.62
AWV	2.01	0.30	1.43	1.80	1.99	2.21	2.70	2.15
AAP	1,000.36	8.47	985.33	992.35	1,001.36	1,007.55	1,016.20	14.82
ASH	149.46	44.20	46.83	118.53	148.13	179.59	250.90	4.30
HB cases, 1-month lag	—	—	—	—	—	—	—	1.26

ARH, average relative humidity; AP, aggregate precipitation; AT, average temperature; AWV, average wind velocity; AAP, average air pressure; ASH, aggregate sunshine hours; HB, human brucellosis; and VIF, variance inflation factor.