Predictors of aortic clamp time duration and intensive care unit length of stay in elective adult cardiac surgery

The Egyptian Heart Journal

Table 1 Patients' sociodemographic and past medical history characteristics (N = 609)

	Number	Percentage	Mean (SD)
Sex
Female	109	17.9
Male	500	82.1
Age (years), mean (SD)			55.62 (12.33)
Age group
18–34 years	43	7.1
35–50 years	106	17.4
51–65 years	363	59.6
≥ 66 years	97	15.9
Body Mass Index score, mean (SD)			26.86 (4.01)
Body Mass Index score classification
Underweight	4	0.7
Normal	151	24.8
Preobesity	347	57
Class I obesity	74	12.2
Class II obesity	25	4.1
Class III obesity	8	1.3
Smoking habit
No	419	68.8
Yes	190	31.2
Comorbid
No	258	42.4
Yes	351	57.6
Comorbidity type, n = 351
Left ventricular impairment	106	30.2
CVA	11	3.1
Hypertension	236	67.2
Diabetes mellitus	102	29.1
Obese	107	30.5
Respiratory illness	43	12.3
ESRD on dialysis*	1	0.0016
Moderately impaired renal function**	2	0.003
Severely impaired renal function*** off dialysis	0	0
Moderate pulmonary hypertension^†	2	0.003
Severe pulmonary hypertension^††	1	0.0016
EUROSCORE, mean (SD)			1.01 (0.79)
EUROSCORE group:
Euroscore < 4 points	598	98.2
Euroscore ≥ 4 points	11	1.8

*ESRD: End-stage renal disease, requiring dialysis, regardless of creatinine clearance
**Moderately impaired renal function: creatinine clearance (50-85 ml/min)
***Severely impaired renal function: creatinine clearance (<50 ml/min), not requiring dialysis
^†Moderate pulmonary hypertension: Pulmonary Artery systolic pressure (31-55 mm Hg)
^††Severe pulmonary hypertension: Pulmonary Artery systolic pressure (>55mm Hg)