Epidemiological Survey of Childhood Anal Fissure in Jinshan District, Shanghai, China

doi:10.3969/j.issn.1001-568X.2019.04.0016

Abstract：OBjECTIVE To investigate the prevalence rate of childhood anal fissure in Jinshan District, Shanghai, China, as well as the characteristics of attacks and the visit situation. METHODS A total of 1 088 children aged 0～7 years were selected from kindergarten and the community health service center for medical examination during the period from September. RESULTS (1) There were 194 children with anal fissure in 1 088 investigating children, the prevalence rate was 17.83％. Among them, the prevalence rate of anal fissure among boys was 33.51％ and the prevalence rate of anal fissure among girls was 66.49％. The prevalence of girls was significantly higher than boys, and the difference was statistically significant (χ2=26.86, P<0.05). (2) The highest prevalence of anal fissure was 1～2 years old and 5～6 years old, accounting for 47.13％ and 44.68％. The difference in prevalence between different age groups was statistically significant (χ2=99.09, P<0.05). (3) There were 108 anal fissures in children from urban areas and 86 in anal fissures from rural.The difference was not statistically significant (χ2=0.224, P>0.05). (4) Parents with primary, middle, high school, undergraduate/college, master's degree or above, their children had different proportions of anal fissure, and the difference was statistically significant (χ2=13.498, P<0.05). (5) The multivariate logistic regression analysis showed that the risk factors affecting the incidence of anal fissure in children were dry stools, child sex, picky eaters, stool crying, parental education and visiting department. (6) Among the participants in the questionnaire, there were 50.2％ participants did not know much about anal fissure in children, the awareness rate was 49.08％ and only 31.25％ of the respondents would send the child to the anorectal clinic. CONCLUSION The prevalence of anorectal in children in Jinshan of Shanghai was on the rise, the awareness rate was low, and the visiting departments were not clear enough.