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. 2013 Nov 19;8(11):e80173. doi: 10.1371/journal.pone.0080173

Table 3. Univariate analysis of factors associated with clonorchiasis among Patients in Heilongjiang Province.

Variable Subcategory Positive n (%) Negative n (%) β SX Wald χ2 P
Total 1284 (25.93) 3667 (74.07)
Gender Male 1042 (28.67) 2593 (71.33) ref.
Female 242 (18.39) 1074 (81.61) -0.5785 0.0801 52.2263 <0.001
Environment Rural 1090 (30.48) 2486 (69.52) ref.
Urban 194 (14.11) 1181 (85.89) -0.9817 0.0856 131.6520 <0.001
History of treatment No 1112 (25.96) 3172 (74.04) ref.
Yes 172 (25.79) 495 (74.21) -0.0089 0.0951 0.0087 0.9259
Habit of eating raw fish no 20 (2.24) 871 (97.76) ref.
Yes 1264 (31.13) 2796 (68.87) 2.9799 0.2287 169.8107 <0.001
Season Spring 277 (26.26) 778 (73.74) ref.
Summer 396 (26.67) 1089 (73.33) 0.0211 0.0913 0.0534 0.8172
Autumn 322 (25.64) 934 (74.36) -0.0322 0.0952 0.1144 0.7352
Winter 289 (25.02) 866 (74.98) -0.0647 0.0975 0.4408 0.5067
Occupation Other 27 (8.31) 298 (91.69) ref.
Farmer 1008 (30.88) 2256 (69.12) 1.5956 0.2045 60.8691 <0.001
Civil servants 248 (18.29) 1113 (81.71) 0.9039 0.2129 18.0330 <0.001