Content area
Abstract
With a significance level of 0.05 and power of 0.80 and assuming an equal ratio of hypotension if the true incidence of Propofol Induced Hypotension (PIH) in the IVC-CI <50% was 45% or lower (the original manuscript wrote 15% or lower which was a typo on the author's part) and the incidence of PIH in the IVC-CI >=50% was 75% or higher, only 26 total patients would need to be enrolled (13 in each group). Funding sources/disclosures None. + 30% SBP reduction - 30% SBP reduction IVC-CI >=50% 12 5 IVC-CI <50% 16 7 Table 1 2x2 table of IVC-CI >=50% and 30% SBP reduction after Propofol. + PIH - PIH IVC-CI >=50% 13 4 IVC-CI <50% 9 14 Table 2 2x2 table of IVC-CI >=50% and Propofol Induced Hypotension (PIH) Test characteristics of an IVC-CI of >=50% for predicting PIH.Sensitivity 59.09% (95% CI, 36.68-78.52).Specificity 77.78% (95% CI, 51.92-92.63).Positive predictive value 76.47% (95% CI, 49.76-92.18).Negative predictive value 60.87% (95% CI, 38.78-79.53).Odds ratio 5.05 (95% CI, 1.25-20.48).