borderline significantp =0.05
Repeated measures ANOVA (n=173) showed a borderline significant group by time by cognitive status interaction (F[1,169]=3.90, p =0.05, η p 2 =0.02), such that impaired persons in the probiotic group (M baseline =39, M follow-up =46) showed greater improvement in cognitive performance than impaired persons in the placebo group (M baseline =37, M follow-up =42), intact persons in the probiotic group (M baseline =53, M follow-up =54), and intact persons in the placebo group (M baseline =51, M follow-up =54).