The burden of road traffic injuries in the northeast of Iran: the result of a population-based registry.

BACKGROUND: Road traffic injuries (RTIs) are an important public health problem around the world, with the majority of RTIs occurring in low- and middle-income countries. This study aimed to determine disability-adjusted life years (DALY) of RTIs in the northeast of Iran. METHODS: In this cross-sectional study, we used the death registration system to calculate years of life lost (YLL) due to RTIs. To determine the years lost due to disability (YLD), hospital records of all people injured in road accidents were used. To estimate DALY, we used YLD and YLL to calculate DALY according to the Global Burden of Disease (GBD) 2003 guideline and the age/sex composition of the population was taken from the Statistical Centre of Iran (SCI) in 2016. All collected data entered into Excel software and performed calculations. RESULTS: Our findings showed that a total of 3403 RTIs and 132 deaths were recorded in 2016. The DALY was 38 per 1,000 of which 26.9 per 1,000 were related to YLL and 11.1 per 1,000 were related to YLD. The highest YLL rate in both sexes was in the 15-29 and 30-44 age groups with 49.8 per 1,000 and 46.0 per 1,000, respectively. This reflects a sex ratio of DALY in males (57.7 per 1,000) to females (8.6 per 1,000) was 6.7. CONCLUSIONS: It seems to be necessary, appropriate effective intervention programs and periodic evaluations are required regarding prevention and reducing traffic accidents mostly in middle-aged men.

Estimating the Esophagus Cancer Incidence Rate in Ardabil, Iran: A Capture-Recapture Method.

BACKGROUND: Accurate cancer registry and awareness of cancer incidence rate is essential in order to define strategies for cancer prevention and control programs. Capture-recapture methods have been recommended for reducing bias and increase the accuracy of cancer incidence estimation. OBJECTIVES: This study aimed to estimate the esophagus cancer incidence by capture-recapture method based on Ardabil population-based cancer registry data. PATIENTS AND METHODS: Total new cases of esophagus cancer reported by three sources of pathology reports, medical records, and death certificates to Ardabil province cancer registry center in 2006 and 2008 were enrolled in the study. All duplicated cases between three sources were identified and removed using Excel software. Some characteristics such as name, surname, father's name, date of birth and ICD codes related to their cancer type were used for data linkage and finding the common cases among three sources. The incidence rate per 100,000 was estimated based on capture-recapture method using the log-linear models. We used BIC, G(2) and AIC statistics to select the best-fit model. RESULTS: After removing duplicates, total 471 new cases of esophagus cancer were reported from three sources. The model with linkage between pathology reports, medical record sources and independence with the death certificates source was the best fitted model. The reported incidence rate for the years 2006 and 2008 was 18.77 and 18.51 per 100,000, respectively. In log-linear analysis, the estimated incidence rate for the years 2006 and 2008 was 49.71 and 53.87 per 100,000 populations, respectively. CONCLUSIONS: Based on the obtained results, it can be concluded that none of the sources of pathology reports, death certificates and medical records individually or collectively were fully covered the incidence cases of esophagus cancer and need to apply some changes in data abstracting and case finding.

Estimating the completeness of gastric cancer registration in Ardabil/Iran by a capture-recapture method using population-based cancer registry data.

BACKGROUND: Knowledge of cancer incidences is essential for cancer prevention and control programs. Capture-recapture methods have been recommended for reducing bias and increasing the accuracy of cancer incidence estimations. This study aimed to estimate the completeness of gastric cancer registration by the capture-recapture method based on Ardabil population-based cancer registry data. MATERIALS AND METHODS: All new cases of gastric cancer reported by three sources, pathology reports, death certificates and medical records that reported to Ardabil population-based cancer registry in 2006 and 2008 were enrolled in the study. The duplicate cases based on the similarity of first name, surname and fathers names were identified between sources. The estimated number of gastric cancers was calculated by the log-linear method using Stata 12 software. RESULTS: A total of 857 new cases of gastric cancer were reported from three sources. After removing duplicates, the reported incidence rates for the years 2006 and 2008 were 35.3 and 32.5 per 100,000 population, respectively. The estimated completeness calculated by log-linear method for these years was 36.7 and 36.0, respectively. CONCLUSIONS: These results indicate that none of the sources of pathology reports, death certificates and medical records individually or collectively fully cover the incident cases of gastric cancer. We can obtain more accurate estimates of incidence rates using the capture-recapture method.