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Table 2 Results of logistical regression analyses of risk factors and Enterobius vermicularis infection in the study participants

From: Risk factors for Enterobius vermicularis infection in children in Gaozhou, Guangdong, China

Variables No. of positive (%) OR (95 %CI) a OR (95 %CI) b Variables No. of positive (%) OR (95 %CI) a OR (95 %CI) b
Age group (years)    Washing hands before dinner
7 to 12 (n = 294) 145 (49.32) 1.00 1.00 Yes (n = 671) 359 (53.50) 1.00 1.00
2 to 6 (n = 508) 295 (58.07) 1.42 (1.07–1.90) c 1.63 (1.20–2.20)* No (n = 131) 81 (61.83) 1.41 (0.96–2.07) c 1.52(1.02–2.28)*
Sex     Washing hands after toilet use   
Boys (n = 480) 267 (55.63) 1.00 Yes (n = 584) 321 (54.97) 1.00
Girls (n = 322) 173 (53.73) 0.93 (0.70–1.23) No (n = 214) 115 (53.74) 0.95 (0.70–1.30)
Father’s education    Sucking fingers   
Middle school and above (n = 297) 153 (51.52) 1.00 Yes (n = 145) 79 (54.48) 1.00
Primary school and below (n = 505) 287 (56.83) 1.24 (0.93–1.65) No (n = 656) 361 (55.03) 1.02 (0.71–1.47)
Father’s floating in and out of jobsd   Biting pencils (or toys)   
No (n = 440) 232 (52.73) 1.00 No (n = 640) 343 (53.59) 1.00
Yes (n = 362) 208 (57.46) 1.21 (0.92–1.60) Yes (n = 161) 97 (60.25) 1.31 (0.92–1.87)
Mother’s education    Residual dirt in fingernails   
Middle school and above (n = 215) 103 (47.91) 1.00 1.00 Yes (n = 347) 194 (55.91) 1.00
Primary school and below (n = 587) 337 (57.41) 1.47 (1.07–2.01) c 1.501 (1.09–2.07)* No (n = 454) 246 (54.19) 0.93 (0.70–1.24)
Mother’s floating in and out of jobsd   Playing on the ground   
No (n = 545) 288 (52.84) 1.00 No (n = 457) 250 (54.70) 1.00
Yes (n = 257) 152 (59.14) 1.29 (0.96–1.74) c Yes (n = 345) 190 (55.07) 1.02 (0.77–1.34)
Annual income of household   Washing hands after playing/games  
>15,000 RMB (n = 237) 131 (55.27) 1.00 Yes (n = 451) 253 (56.10) 1.00
≤15,000 RMB (n = 565) 309 (54.69) 0.98 (0.72–1.33) No (n = 348) 186 (53.45) 0.90 (0.68–1.19)
Brought up by parents   Playing with/in soil   
Yes (n = 406) 215 (52.96) 1.00 - Yes (n = 430) 241 (56.05) 1.00
No (n = 396) 225 (56.82) 1.170 (0.89–1.54) No (n = 372) 199 (53.49) 0.90 (0.68–1.19)
Parents‘ knowledge about controlling parasitic diseases Taking anthelmintics in past six months
Yes (n = 535) 296 (55.33) 1.00 - Yes (n = 256) 132 (51.56) 1.00
No (n = 262) 141 (53.82) 0.94 (0.70–1.27) No (n = 534) 300 (56.18) 1.20 (0.89–1.62)
  1. OR odds ratio, 95 %CI 95 % confidence interval
  2. * p < 0.05
  3. a Result in univariate logistic regression analysis. b Result in multivariate logistic regression analysis. c Variables entering the multivariate logistic regression analysis (p < 0.1 in univariate logistic regression analysis). d This signifies people who were previously employed in agriculture that leave their hometowns for another developed city and take a temporary job there to earn money