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Table 3 Results of the multivariate analysis

From: Waterborne microbial risk assessment : a population-based dose-response function for Giardia spp. (E.MI.R.A study)

Variable name Odds Ratio 95% CI P value
Study group (class)    
2 0.83 [0.65–1.06] 0.13
3 1.19 [1.01–1.39] 0.03
4 0.84 [0.76–0.93] 0.001
Age (class)    
15–59 years-old 0.95 [0.85–1.06] 0.36
> 60 years-old 0.95 [0.82–1.11] 0.54
Bacterial Compliance 0.81 [0.64–1.02] 0.08
Enterovirus RNA (+/-) 0.61 [0.46–0.80] 0.0003
Astrovirus RNA (+/-) 1.49 [1.16–1.90] 0.002
V*Ln (Giardia) * 1.76 [1.21–2.55] 0.003
  1. * combination of tap water intake and Giardia counts : V*Ln(Giardia) Other non significant variables in the model : Gender, Socio-economic status, Housing, Rotavirus RNA (+/-) and Cryptosporidium counts