Epidemiological survey of cystic echinococcosis in southwest China: From the Qinghai-Tibet plateau to the area of Yunnan

Table 1 Distribution of echinococcosis by sex, age, ethnicity, and occupation in Yunnan

Features	Number of cases	Constituent ratio (%)
Sex
Male	185	46.6
Female	212	53.4
Age (yr)
1-9	15	3.8
10-19	29	7.3
20-29	43	10.8
30-39	69	17.4
40-49	73	18.4
50-59	66	16.6
60-69	58	14.6
70-79	37	9.3
≥ 80	7	1.8
Ethnicity
Han	173	43.6
Bai	104	26.2
Tibetan	36	9.1
Yi	31	7.8
Lisu	11	2.8
Naxi	10	2.5
Dai	6	1.5
Hani	6	1.5
Others	20	5.0
Occupation
Farmers and herders	298	75.1
Students	36	9.1
Cadre	28	7.1
Businessmen/individual	10	2.5
Children	10	2.5
Retired personnel	5	1.3
Guides	4	1.0
Others	6	1.5