To the Editor:
The authors regret that there were errors in Text and Table 1. This notice corrects the incorrectly marked comma (,) with the decimal point (.). For better explanation, annotation should be added at the bottom of the table and as follows: All values are proportional to the total population. Also, in the last paragraph in Method section, we want to correct the incorrectly marked 10,000 to 100,000.
Content of correction:
1. The last paragraph in METHOD section
The results are displayed as estimates with standard errors (SEs) and were plotted as line graphs. For age-standardization, we used the formula as follows: number of patients (for the year) × 100,000/total population (for the year). Analyses were performed for the cumulative age-standardized patient rates per 100,000 people, operation rates per 100,000 people, and procedure/patient rates according to year and age groups. GLM was used and the results were displayed as the estimated with SE and plotted as a line graph. A piecewise linear regression model was used to compare trends before and after 2011. Analyses were performed to derive the correlation coefficients between patient rates and the percentage of the population, between operation rates and the percentage of the population, and between operation rates/patient rates and the percentage of the population per year using Pearson correlation analysis. Statistically significant differences were considered for P values of less than 0.05. All data were analyzed using R software (v3.1.2; R Foundation, Vienna, Austria).
2. Table 1. The trend for procedures of all aneurysm patients after age-adjustment according to age groups
[Before]
[After]
