Effects of adding low-dose ketamine to etomidate on serum cortisol levels in critically ill cardiac patients: a randomized clinical trial

Table 2 Serum cortisol level pre-and 6 h postoperative

	Group E	Group KE	95%CI	P-value ^a,b
Sample size, n	30	30
Mean Preoperative cortisol (SD) in (nmol/L)	632.40 (35.066)	639.13 (43.035)	625.67 to 645.86	0.728
Mean 6 h Postoperative cortisol (SD) in (nmol/L)	295.60 (49.218)	461.00 (67.946)	351.94 to 404.66	0.000

Abbreviations: SD Standard deviation, N Number, Group E Etomidate group, Group KE Ketamine Etomidate group, CI Confidence Interval
^a P-value compares group E versus the group KE
^b Two samples t-test used to compare means

ISSN: 1471-2253