Association of PSCA and ABO SNPs with gastric ulcer.
Datasets usually provide raw data for analysis. This raw data often comes in spreadsheet form, but can be any collection of data, on which analysis can be performed.
We analyzed 4,291 gastric ulcer cases and 22,665 controls.a
rs2294008 (C allele) and rs505922 (T allele).b
P values were obtained using chi-square test. To calculate odds ratios (OR), non risk alleles were considered as references.c
Heterogeneity across two stages was assessed by Cochran Q test.d
OR and P values were obtained using the Mantel-Haenszel fixed-effects model in the meta analysis.