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Table 2 Multivariate logistic regression analysis of influencing factors for Blastocystis infection among HIV patients

From: Risk factors for Blastocystis infection in HIV/AIDS patients with highly active antiretroviral therapy in Southwest China

Variable B SE Wald df P value OR (95% CI)
Raising livestock 2.548 1.082 5.54 1 0.019 12.78 (1.53–106.63)
Drinking water 2.109 0.781 7.286 1 0.007 8.24 (1.78–38.12)
CD4+ T count 2.377 1.088 4.773 1 0.029 10.75 (1.28–90.90)
HIV virus load 1.769 0.764 5.365 1 0.021 5.86 (1.31–26.19)
Constant −9.208 2.886 10.184 1 <  0.001
Dummy variable was defined and entered in multivariate logistic regression model
 Raising animal 2.559 1.085 5.568 1 0.018 12.93 (1.54–108.36)
 Drinking water 2.100 0.783 7.195 1 0.007 8.17 (1.76–37.90)
 CD4+ T*HIV    12.199 3 0.007
 CD4+ T*HIV(1) −4.034 1.203 11.248 1 0.001 0.02 (0.00–0.19)
 CD4+ T*HIV(2) −19.829 14 457.616 <  0.001 1 0.999
 CD4+ T*HIV(3) −1.869 0.793 5.554 1 0.018 0.15 (0.03–0.73)
 Constant −7.990 2.267 12.422 1 <  0.001
  1. The “–” symbol indicates the data was not be calculated
  2. B Beta, SE Standard error, OR Odd ratio, CI Confidence interval