TNF and Alzheimer disease: Additionally, although there was a marked difference between groupsregarding proportions of gender and AD subjects, levels of TNF-α solublereceptors were not different in pairwise comparison (Mann-Whitney test), eitherbetween genders (sTNF-R1: p=0.09; sTNF-R2: p=0.3) or between different cognitivestatus groups (sTNF-R1: p=0.7; sTNF-R2: p=0.29), suggesting that these variableswere not driving the results.