Table 1. Serological prevalence and comparative analysis of different demographic characteristics of high-risk populations of brucellosis in Shanxi and Xinjiang from 2019 to 2020.

Features	Total						Shanxi					Xinjiang
	Number of participant	Percentage (%)	Seropositive	Seroprevalence (%)	P-value		Number of participant	Seropositive	Seroprevalence (%)	P-value		Number of participant	Seropositive	Seroprevalence (%)	P-value
Note: Seroprevalence (%)=number of seropositivity/number of participants×100%. * The different demographic characteristics was statistically significant (P<0.05). †The only one case of brucellosis seropositive in other occupations was a local poverty-alleviation cadre.
Gender					0.091					0.026*					1.000
Male	1,405	58.93	43	3.06			966	36	3.73			439	7	1.59
Female	979	41.07	19	1.94			821	16	1.95			158	3	1.90
Age group (years)					0.368					0.447					0.019*
18–35	181	7.59	7	3.87			53	1	1.89			128	6	4.69
36–59	1,181	49.54	32	2.71			798	28	3.51			383	4	1.04
≥60	1,022	42.87	23	2.25			936	23	2.46			86	0	0
Education					0.595					0.793					0.211
Illiteracy	508	21.31	13	2.56			434	12	2.76			75	1	1.33
Primary school	996	41.78	22	2.21			758	20	2.64			239	2	0.84
Junior high school	667	27.98	19	2.85			515	17	3.30			153	2	1.31
Senior high school and above	213	8.93	8	3.76			80	3	3.75			130	5	3.85
Occupation					0.417					0.456					0.051
Farmer	1,952	81.88	50	2.56			1,689	48	2.84			263	2	0.76
Herder	260	10.91	6	2.31			75	3	4.00			185	3	1.62
Livestock processing	7	0.29	0	0			3	0	0			4	0	0
Teacher	8	0.33	1	12.50			2	0	0			6	1	16.67
Medical staff	22	0.92	0	0			6	0	0			16	0	0
Veterinary	72	3.02	4	5.56			2	0	0			70	4	5.71
Caterer	8	0.34	0	0			0	0	0			4	0	0
Student	1	0.04	0	0			1	0	0			0	0	0
Other	54	2.27	1	1.85			9	1†	11.11			49	0	0