Materials and methods
The purpose of this research was to conduct a retrospective observational descriptive epidemiological analysis on all instances of GC that were identified in Saudi Arabia across all regions between January 2004 and December 2017. Because the information on the GC incidence in Saudi Arabia is readily available to the scientific researchers and can be obtained through the SCR reports with little effort, the observational descriptive epidemiological study that was conducted did not require any kind of ethical approval. The Saudi Ministry of Health established a population-based cancer registry in 1992, and its records provided the basis for this investigation. Furthermore, the first cancer report in Saudi Arabia was issued in 2001, and the most precise cancer reports in Saudi Arabia were published at the beginning of 2004. In addition, the most recent information accessible from the SCR was collected in 2017.
SCR has been issuing reports on the pattern of cancer in Saudi Arabia since 2001, with the primary purpose of describing the epidemiological spread of the disease. On the basis of this data, we have access to in-depth reports for 13 administrative regions, covering the years 2004-2017, that detail the CIR and ASIR, adjusted by province in Saudi Arabia, patient gender, and year of diagnosis. However, for this study, all of the information from the SCR was used to collect important data.
Data was analysed using SPSS, the Statistical Package for the Social Sciences, version 20.0. The descriptive statistics of the epidemiological data involved computing the overall of percentage, CIR, and ASIR adjusted by gender, geographical region, and year of diagnosis. Comparisons of CIR and ASIR of GC between male and female Saudis were analysed using t-test for independent samples.
Version 20.0 of the Statistical Package for the Social Sciences (SPSS) was employed in the study of data. The descriptive analysis of the epidemiological data involved computing the overall percentage, the age-specific incidence rate (ASR), the CIR, and the ASIR stratified by gender, geographical region, and year of diagnosis. The independent sample t-test was performed to compare male and female Saudis’ CIR and ASIR of GC. In addition, both the CIR and ASIR of GC were analysed across regions of Saudi Arabia using the Kruskal-Wallis test. However, the sex ratio for GC was computed from the age-specific incidence rate, the CIR, and the ASIR in this study.