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Unadjusted mean QOL over time by intervention groups. Numbers per intervention group at beginning of intervention, post-intervention, and follow-up were as follows: cognitive behavioral therapy for insomnia (CBT-I)+placebo, 24, 18, and 16; CBT-I+armodafinil, 23, 17, and 16; armodafinil, 24, 15, and 14; and placebo, 24, 17, and 19, respectively.
