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Table 3 Univariable and multivariable analysis of possible demographic and risk factors for toxoplasmosis in Thai Binh hospital

From: Sero-epidemiological status and risk factors of toxoplasmosis in pregnant women in Northern Vietnam

Variable IgG seronegative
No. (%) or mean (sd)
IgG seropositive#
No. (%) or mean (sd)
Odds Ratio
(95% CI)
P-value
Univariable analysis
Level of education     0.157a,b
College 92 (93%) 7 (7%)  
Preschool 1 (100%) 0 (0%) 4.11 (0.042–404)  
Primary school 9 (75%) 3 (25%) 4.54 (1.04–19.9)  
Secondary school 94 (97%) 3 (3%) 0.457 (0.124–1.69)  
High school 85 (93%) 6 (7%) 0.938 (0.313–2.81)  
University degree 87 (96%) 4 (4%) 0.634 (0.189–2.13)  
Post university degree 3 (100%) 0 (0%) 1.76 (0.053–58.5)  
Street cleaning profession     0.114a,b
No 370 (94.4%) 22 (5.6%)  
Yes 1 (50.0%) 1 (50.0%) 16.5 (0.997–272)  
Consumption of pork     0.0095a,b
No 1 (33.3%) 2 (66.7%)  
Yes 370 (94.6%) 21 (5.4%) 0.035 (0.003–0.375)  
Consumption of chicken or duck     0.114a,b
No 1 (50.0%) 1 (50.0%)  
Yes 370 (94.4%) 22 (5.6%) 0.061 (0.004–1.00)  
Frequency meat consumption per week 10 (3) 9 (4) 0.906 (0.803–1.02) 0.108
River as usual source of water     0.058a,b
No 371 (94%) 22 (6%)  
Yes 0 (0%) 1 (100%) 49.5 (0.525–4670)  
Multivariable analysis
 Street cleaning profession 1 (50.0%) 1 (50.0%) 18.0 (1.09–299) 0.044b
 Consumption of pork 370 (94.6%) 21 (5.4%) 0.033 (0.003–0.359) 0.005b
  1. #Including seroconversion; aFisher’s exact test; bObtained using Firth’s bias reduction method [20]
  2. Abbreviations: CI confidence interval, sd standard deviation