Goal-directed fluid therapy using stroke volume variation on length of stay and postoperative gastrointestinal function after major abdominal surgery-a randomized controlled trial

Table 2 Comparison of general characteristics of the study population of both the groups

	Control group (n = 50)	GDFT group (n = 50)	P value
Age, [yr., mean ± SD]	59.2 ± 13.1	64.0 ± 14.0	0.068
Sex ratio, n (%)			0.671
Male	34 (68)	32 (64)
Female	16 (32)	18 (36)
BMI, mean ± SD	23.8 ± 3.2	23.0 ± 3.4	0.208
ASA physical status, n (%)			0.791
1	8 (16)	6 (12)
2	33 (66)	36 (72)
3	9 (18)	8 (16)
Duration of anesthesia, [min, mean ± SD]	250.8 ± 91.0	225.5 ± 87.2	0.195
Duration of surgery, [min, mean ± SD]	212 ± 93.5	191.0 ± 83.5	0.228
P-POSSUM (physiologic score), [mean ± SD]	15.6 ± 2.8	14.9 ± 3.2	0.685
P-POSSUM (operative score), [mean ± SD]	13.4 ± 4.1	14.2 ± 3.8	0.779
Comorbidities, n (%)
Pulmonary disease	3 (6%)	2 (4%)
Hypertension	16 (32%)	17 (34%)
Diabetes	12 (24%)	8 (16%)
Neurological disease	6 (12%)	8 (16%)
Coronary artery disease	7 (14%)	9 (18%)
Type of procedure, n (%)
Gastrectomy	8	7	0.551
Liver resection	3	2
Whipple	6	4
Hemicolectomy	20	17
Rectum resection	5	12
Radical cystectomy or prostatectomy	3	1
Radical resection for gynecologic cancer	1	3
Other oncologic resection procedure	3	3
Stoma n (%)	7 (14%)	9 (18%)	0.667
Surgical technique, n (%)			0.134
Laparoscopy	31 (62)	38 (76)
Laparotomy	19 (38)	12 (24)

Data are presented as mean ± SD (standard deviation) or absolute numbers (% percentage)
Data were compared using Student’s t-test, or Fisher’s exact test as appropriate. There were no statistically significant differences between GDFT group and control group
ASA American Association of Anesthesiologists, BMI Body mass index, POSSUM Physiological and Operative Severity Score for the enumeration of Mortality and Morbidity

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