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Dear FSL experts I have a question regarding the statistics of multiple group analysis. Right now, I have three groups, group 1 has the patients with the most severe state of disease A (grp1), group 2 has the patients with less significant degree of disease A (grp2) and group 3 are unexposed controls (grp3). What is the best statistics if I want to see the differences among the three groups? i.e., if grp1 and grp2 are significant different from grp3 and if there is difference between grp1 and grp2. I am using one-way ANOVA to find out if there is any difference among three groups and then use multiple comparison to pick out which group is different. But I was also suggested that two sample t tests between each group might be a better choice. Your help is greatly appreciated. Longchuan