Absence of Association between Preoperative Estimated Glomerular Filtration Rates and Postoperative Outcomes following Elective Gastrointestinal Surgeries: A Prospective Cohort Study

Table 4

Multivariate model for entire cohort in predicting postoperative complications.

	Univariate		Multivariate
	OR (95% CI)	value	OR (95% CI)	value
Age	1.02 (1.00–1.04)	0.028	—
Sex
Male	Ref.		Ref.
Female	2.59 (1.95–2.87)	0.025	1.85 (1.02–3.60)	0.045
ASA grade
Grade 1	Ref.
Grade 2	1.06 (0.42–3.24)	0.913
Grade 3	2.06 (0.72–6.80)	0.198
Grade 4	—	—
Comorbidities
0	Ref.
1-2	2.14 (0.78, 7.54)	0.18
>2	2.83 (1.04–9.93)	0.063
T2DM
No	Ref.		Ref.
Yes	2.00 (1.00–3.83)	0.042	1.86 (1.24–4.03)	0.048
IHD
No	Ref.
Yes	0.92 (0.21–2.82)	0.896
CCF
No	Ref.
Yes	4.01 (0.52–24.77)	0.133
Surgical grade
Minor	Ref.		Ref.
Intermediate	2.29 (0.77–8.36)	0.161	2.65 (0.88–9.81)	0.103
Major	19.52 (7.39–67.56)	<0.001	21.38 (7.97–74.91)	<0.001
Surgical specialty
Upper GI	Ref.
Lower GI	0.81 (0.37–1.80)	0.592
HBP	1.03 (0.51–2.20)	0.93
Indication
Benign	Ref.
Malignant	4.24 (2.33–7.77)	<0.001
Surgical approach
Endoscopic/Ultrasound	Ref.
Laparoscopic	5.00 (1.78–17.84)	0.005
Open	8.71 (3.33–29.95)	<0.001
PAS
Low risk	Ref.
High risk	5.33 (2.92–9.90)	<0.001
eGFR
>60	Ref.
<60	0.79 (0.26, 1.96)	0.645

Upper GI, upper gastrointestinal surgery; lower GI, lower gastrointestinal surgery; HPB, hepatopancreatobiliary surgery; PAS, preassessment service; eGFR, estimated glomerular filtration rate.