RESULTS	The breathing pattern was not affected by melatonin - the mean initial value of the eAHI in the melatonin group was 18.2 9.4 , and in the placebo group 19.6 12.3 ( p = 0.64 ) , whereas at the end of the observation in the melatonin group it increased by 1.2 11.3 , and in the placebo group - by 1.0 9.0 ( p = 0.44 ) .\