ORIGINAL ARTICLES

A case-control study on the influencing factors of echinococcosis in Qinghai Province

  • MA Bingcun ,
  • LIU Yuying ,
  • ZHANG Tiantian ,
  • LEI Wen ,
  • MA Xiao ,
  • LIU Shou
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  • 1 Department of Public Health, Faculty of Medicine, Qinghai University, Xining 810001, China
    2 Qinghai Institute for Endemic Disease Prevention and Control, Xining 810000, China

Received date: 2022-06-28

  Revised date: 2022-09-22

  Online published: 2023-04-23

Supported by

National Natural Science Foundation of China(81860606);Natural Science Foundation of Qinghai Province(2019-ZJ-906)

Abstract

Objective To study the main influencing factors to echinococcosis in Qinghai Province, to provide scientific basis for interventions. Methods A case-control study was conducted on the infection factors of adult echinococcosis cases in the significant endemic areas (Guoluo, Haibei, Hainan, Haixi, Huangnan and Yushu) and in the nonsignificant endemic areas (Haidong and Xining) of Qinghai Province. The study was carried out by setting the matching factors of age, sex and ethnicity, with the maching control ratio of patients against heathy people 1:2, defining whether or not the disease case as the dependent variable for univariate analysis using a logistic regression model constructed to analyze the factors influencing residents contracting echinococcosis. Statistical analysis was conducted using SPSS 22.0 statistical software. Results A total of 1 447 cases met the inclusion criteria was enrolled as the case group in this study, with a mean age of (38.7 ± 13.3) years, 58.3% male (844/1 447), 41.7% female (603/1 447), 65.2% Tibetan (944/1 447), 22.9% Han Chinese (332/1 447), 6.6% Hui (95/1 447); the control group consisted of 2 894 individuals with a mean age of (38.5 ± 13.0) years, 58.3% male (1 688/2 894), 41.7% female (1 206/2 894), 60.5% Tibetan (1 751/2 894), 26.4% Han (763/2 894), and 6.0% Hui (175/2 894). The results of univariate analysis showed that 25 factors, such as canine ownership, canine breeding method, canine use, frequent contact with drinking water, no disposal of canine feces, frequent contact with canine, and domestic animal ownership, were statistically significant between the case and control groups (χ2 = 143.53, 46.88, 40.26, 80.63, 38.77, 107.16, 117.27; P < 0.01). Multivariate logistic regression analysis showed that the type of canine ownership (OR = 1.37, 95%CI: 1.03-1.82), use of canines (OR = 1.59, 95% CI: 1.01-2.51), canine contacted with drinking water (OR = 1.63, 95% CI: 1.19-2.24), disposal of canine feces (OR = 2.51, 95% CI: 1.95-3.26), slaughter of livestock at home in the last year (OR = 1.44, 95% CI: 1.09-1.91), slaughterhouse or butcher shop around home (OR = 1.67, 95% CI: 1.21-2.26), canine fed with raw livestock organs (OR = 1.53, 95% CI: 1.18-2.03), drinking unboiled water (OR = 1.42, 95% CI: 1.05-1.91), living with wild animals around home (OR = 1.53, 95% CI: 1.19-1.95), drinking water storage method (OR = 1.88, 95% CI: 1.37-2.59), as well as prevention knowledge (OR = 1.75, 95% CI: 1.36-2.28) were the main risk factors for echinococcosis prevalence in adults. Conclusion This study indicates that the factors of dog-related behavior, hygienic habits, lifestyle and the wareness on knowledge of disease prevention and control are highly associated with echinococcosis in adults in Qinghai Province and are the key behavioural factors in echinococcosis intervention in Qinghai endemic areas.

Cite this article

MA Bingcun , LIU Yuying , ZHANG Tiantian , LEI Wen , MA Xiao , LIU Shou . A case-control study on the influencing factors of echinococcosis in Qinghai Province[J]. CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES, 2023 , 41(2) : 183 -191 . DOI: 10.12140/j.issn.1000-7423.2023.02.009

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