慈濟台北分院 外科部 泌尿科
The incidence of incarcerated inguinal hernia in children and its associated risk factors: a nation-wide longitudinal population-based study
Peng-Chiung Huei M.D., Stephen Shei-Dei Yang M.D., Ph.D., Cheng-Hsing Hsieh M.D. and Shang-Jen Chang M.D
Division of Urology, Taipei Tzu Chi Hospital, The Buddhist Tzu Chi Medical Foundation, New Taipei City
Purpose: To evaluate the incidence of inguinal hernia and incarcerated hernia in children aged 0 to 15 years and associated risk factors using a national wide database.
Materials and Methods: Children born from 1997 to 2005 were selected from a randomly selected cohort of 1,000,000 from an insured population of 23 millions. Children with International Classification of Diseases [ICD], 9th revision, code 550 and code of hernia surgery were regarded as having inguinal hernia. The chi-square test and logistic regression modeling were used for statistical analyses.
Results: Totally, 79794 children (41767 boys and 38027 girls) were enrolled in the study period. The cumulative incidence of inguinal hernia in boys and girls from birth to 15 years old were 6.62% and 0.74%, separately (p<0.01). The peak incidence of inguinal hernia was 0 year for boys and 5 years for girls, respectively. The ratio of unilateral vs. bilateral repair was 5.54:1. Girls tended to have more bilateral inguinal hernia than boys (25.4% vs. 12.9%, p<0.01). Incarcerated hernia occurred in 4.19% children with inguinal hernia without significant gender discrepancy. We did not find significant correlation between waiting time to hernia repair was not related to incarceration
The cumulative incidences of inguinal hernia from birth to age of 15 years old were 6.62% and 1.74% in boys and girls, respectively. Incarceration occurred in 4.19% of children with inguinal hernia and was not related to waiting for surgery. The risk factors of girl inguinal hernia require more investigations.