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Average ORP-architecture in the nine pre-selected types. Number of subjects ranged 73–957 in the different types. The two numbers in the Type designation indicate the quartiles in which % of epochs in deep sleep (ORP < 0.5) and full wakefulness (last decile), respectively, were located; 1 = lowest quartile; 2 = interquartile range; 3 = highest quartile. ORP, odds ratio product. Standard error of the mean (not shown) was <0.7% for all columns in all nine patterns.
