ABSTRACT
Purpose@#Errors in pediatric death certificates (DCs) have been rarely reported. We analyzed the errors in writing the DCs issued in an emergency department (ED). @*Methods@#The DCs issued at the ED to patients aged 18 years or younger were retrospectively analyzed. Their medical records were reviewed by 4 emergency physicians. Major and minor errors in the DCs were defined based on the International Statistical Classification of Diseases and Related Health Problems 10th revision guidelines. The DCs were classified into the disease group and the external group by the manner of death, and the errors were compared. @*Results@#Among a total of 87 DCs issued in the ED, 97.5% and 100% were confirmed to contain at least 1 error in the disease (n = 40) and external (n = 47) groups, respectively. The median numbers of errors in the analyzed DCs were 2.0 and 3.0 in the disease and external groups, respectively (P = 0.004). In the disease group, the most frequent major error was reporting only a secondary condition as the underlying cause of death without antecedent causes (6 cases [15.0%]). In the external group, the most frequent major error was writing 2 or more causes in a single line for the cause of death (17 cases [36.2%]). In both groups, the most common minor error was omission of a time interval record for the cause of death (disease, 37 cases [92.5%]; external, 42 cases [89.4%]). @*Conclusion@#Any errors were identified in 98.9% of pediatric DCs issued in the ED, and the total number of errors was larger in the external group.
ABSTRACT
PURPOSE: In this nationwide 5-year longitudinal population-based study, we aimed at investigating the incidence of lung cancer among patients with interstitial lung disease. MATERIALS AND METHODS: Data was collected from the Korean National Health Insurance Research Database from 49,773,195 Korean residents in 2009. Thirteen thousand six hundred and sixty-six patients with interstitial lung disease diagnosed January-December 2009. The end of follow-up was June 30, 2014. Up to four matching chronic obstructive pulmonary disease controls were selected to compare the lung cancer high-risk group based on age, sex, diagnosis date (within 30 days), and hospital size. The number of patients with newly developed lung cancer was determined. RESULTS: The incidences of lung cancer were 126.98, 156.62, and 370.38 cases per 10,000 person-years (2,732, 809, and 967 cases of cancer, respectively) in the chronic obstructive pulmonary disease, interstitial lung disease, and chronic obstructive pulmonary disease with interstitial lung disease groups, respectively. Of the 879 patients with idiopathic pulmonary fibrosis, 112 developed lung cancer (incidence, 381.00 cases per 10,000 person-years). CONCLUSION: Incidence of lung cancer among patients with interstitial lung disease was high. Interstitial lung diseases have a high potential for developing into lung cancer, even when concurrent with chronic obstructive pulmonary disease.