Diagnostic delay in pediatric cancer in Enugu, Nigeria: a prospective study

Childhood cancer is a leading cause of childhood mortality in developed countries though ranks lower than infections in developing countries. Most patients with malignancies present late to hospital with consequent adverse outcome. Early diagnosis, therefore, is an important requirement in pediatric oncology as delayed diagnosis is associated with poor prognosis and huge economic cost. The study aims to identify factors associated with delay in the diagnosis of childhood cancer at University of Nigeria Teaching Hospital, Enugu.Children aged 0-17 years with admitting diagnosis of cancer which was histologically confirmed were reviewed prospectively over a 3-year period. An interviewer structured questionnaire was administered to patients or parents/caregivers to obtain information on patients' biodata, their symptoms as well as visit to health professionals or alternative health care providers before presentation at this hospital.Ninety patients were confirmed to have cancer. Overall median lag time (LT) was 15.7 weeks. Major contributors to delay were parents and the type of cancer patients presented with. Acute lymphoblastic leukemia (ALL) had the shortest median LT of 4.2 weeks while Hodgkin's disease had the longest median LT of 53.6 weeks (p = 0.01, Mann-Whitney test, 2-tailed). The median parent's delay was 12.3 weeks and health system delay was 3.6 weeks showing a significant difference in the two categories of delay (p < 0.0001, Mann-Whitney test, 2-tailed). The median treatment delay was 5 days.Public awareness and health system reform is imperative in reducing the delay in diagnosis of childhood cancer in our environment.