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Table 2

Results of univariate analysis of risk factors and Enterobius vermicularis infection in the study participants.

Variable 2003
2013
No. examined No. positive Prevalence (%) p-value No. examined No. positive Prevalence (%) p-value
Gender
 Male 282 39 13.83 0.414 918 53 5.77 0.200
 Female 228 26 11.40 816 36 4.41
Age (years)
 2–4 367 40 10.90 0.045 894 26 2.91 < 0.001
 5–6 143 25 17.48 840 63 7.50
Area
 Urban 253 30 11.86 0.551 994 49 4.93 0.657
 Rural 257 35 13.62 740 40 5.41
Hand washing before eating
 Yes 238 22 9.24 0.027 1156 41 3.55 < 0.001
 No 272 43 15.81 578 48 8.30
Sucking fingers or toys
 Yes 381 53 13.91 0.175 981 63 6.42 0.005
 No 129 12 9.30 753 26 3.45
Scratching around the anus
 Yes 287 41 14.29 0.237 611 52 8.51 < 0.001
 No 223 24 10.76 1123 37 3.29

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