Skip to main content

Advertisement

Table 2 Univariate and multivariate analysis of risk factors for acquiring Opisthorchis viverrini infection

From: A follow-up study of Opisthorchis viverrini infection after the implementation of control program in a rural community, central Thailand

Characteristics Number of O. viverrini infected persons Person-years of follow up Incidence rate (/100 person-years) Crude relative risk (95% CI) Adjusted relative risk (95% CI)
Gender      
 Female 85 476.7 17.8 1 1
 Male 105 407.0 25.8 1.5 1.3
(1.1-2.0) (0.9-1.8)
Age group (years)      
 0-24 16 130.5 12.3 1 1
 25-59 78 326.0 23.9 2.0 1.6
(1.1-3.3) (0.9-2.8)
 60+ 98 440.2 22.3 1.8 1.9
(1.1-3.1) (1.0-3.4)
Occupation      
 Others 60 248.2 24.2 1  
 Agriculture 66 282.8 23.3 1.0 -
(0.7-1.4)
Fish menus      
Chopped raw fish salad (Koi pla)      
 No 50 294.0 17.0 1 1
 Yes 80 262.7 30.5 1.8 1.6
(1.2-2.6) (1.1-2.3)
Briefly fermented fish (Pla som)      
 No 25 96.8 25.8 1  
 Yes 54 182.7 29.6 1.2 -
(0.7-1.9)
Extensively fermented fish (Pla ra)      
 No 16 62.0 25.8 1  
 Yes 64 217.5 29.4 1.1 -
(0.7-2.1)
  1. 95% CI = 95% confidence interval.
  2. Adjusted for occupation, briefly fermented fish and extensively fermented fish.