Table S1. Prevalence of foodborne disease outbreaks in Guizhou Province, 2012–2022.

Factors	Subgroups	Exposures	Morbidity number	Prevalence (%)	χ 2	P
Average monthly rainfall (mm)	[5.000–65.200)	20,412	3,525	17.269	2,122.142	<0.001
	[65.200–125.400)	28,769	4,394	15.273
	[125.400–185.600)	20,442	3,875	18.956
	[185.400–245.800)	7,084	2,375	33.526
	[245.800–306.000)	3,894	626	16.076
Monthly rainfall days (d)	[4.000–7.200)	1,297	389	29.992
	[7.200–10.400)	2,245	895	39.866	1,066.166	<0.001
	[10.400–13.800)	16,031	3,189	19.893
	[13.800–16.800)	38,946	5,310	13.634
	[16.800–20.00)	22,082	5,012	22.697
Average monthly temperature (℃)	[2.700–8.600)	3,293	874	26.541
	[8.600–14.500)	12,866	2,095	16.283	2,753.543	<0.001
	[14.500–20.400)	15,101	2,827	18.721
	[20.400–26.300)	31,048	4,345	13.994
	[26.300–32.200)	18,293	4,654	25.441
Monthly relative humidity (%)	[62.00–66.800)	1,828	648	35.449
	[66.800–71.600)	2,402	552	22.981	1,656.289	<0.001
	[71.600–76.400)	25,896	5,202	20.088
	[76.400–81.200)	45,571	7,594	16.664
	[81.200–86.000)	4,904	799	16.293
Average hours of sunshine (h)	[1.800–3.060)	16 241	2 388	14.704
	[3.060–4.320)	11 038	2 092	18.953	1,739.290	<0.001
	[4.320–5.580)	31 011	4 961	15.998
	[5.580–6.840)	15 875	3 326	20.951
	[6.840–8.100)	6 436	2 028	31.510