This dataset contains the sex stratified and interaction summary statistics memory and memory slopes published in Eissman, et al, 2024 (Alzheimer’s and Dementia, PMID pending). Memory scores were obtained from multiple ADSP cohorts (ACT, ADNI, NACC, ROS/MAP/MARS) at baseline and longitudinally. Memory scores were harmonized between cohorts using item-level data. Memory slopes were calculated with a null linear mixed-effects regression where the slope and the intercept were allowed to vary for each participant. Genotype data in each study underwent standard quality control and imputation onto the TOPMed reference panel (genome build 38).

All GWAS described were performed in males, in females, and with a sex-interaction. Covariates included baseline age and the first 5 genetic ancestry principal components, and additionally the sex-interaction GWAS contained a SNP-by-sex interaction term. We performed GWAS in ACT, ADNI, NACC, and ROS/MAP/MARS separately. Within each cohort, GWAS were performed among NHW and among NHB participants separately. X-Wide Association Studies (XWAS) were performed identically to the GWAS, except that male genotypes were coded as 0/2 (instead of 0/1) to account for X-chromosome dosage differences between males and females. Within each ancestry group, we additionally performed sex-stratified and sex-interaction GWAS and XWAS subgroup analyses, by first limiting the sample to cognitively unimpaired and then limiting to cognitively impaired. Male, female, and sex-interaction individual cohort GWAS were meta-analyzed implementing a fixed-effects model with beta and standard error input. Meta-analyses were performed within each ancestry group and furthermore within each diagnostic category mentioned above. Meta-analysis results were restricted to SNPs present in 3-4 (out of 4) cohorts. Results were further filtered to retain SNPs with a stratum specific MAF of >1%. These filtered meta-analysis results were leveraged for the cross-ancestry meta-analyses which was performed in the same manner as the previous ones. SNPs were retained if they were present in both ancestry groups. The summary statistics included here include both autosomal and X chromosome variants from the cross-ancestry meta-analysis.