Correlation of PSI index with OAA / S sedative score - Correlation of PSI index with OAA / S sedat ive score in group I according to PSI equation = 9.63 OAA / S + 45.22 with r = 0.953, n = 816 - Correlation of PSI index with OAA / S sedat ive score in group II according to PSI equation = 9.66 OAA / S + 43.45 with r = 0.936, n = 658 3.3.6.