Preoperative Assessment of Patients Undergoing Elective Gastrointestinal Surgery: Does Body Mass Index Matter?
Table 1
Baseline characteristics of patients by body mass index (BMI).
Variable
Normal, (%)
Overweight, (%)
Obese, (%)
value
Age (range)
60 (17–92)
52 (19–83)
58 (21–87)
Sex
Male
74 (61)
74 (64)
56 (43)
0.00
Female
48 (39)
42 (36)
74 (57)
Comorbidity
0
20 (16)
25 (22)
14 (11)
0.03
0-1
53 (43)
56 (48)
53 (41)
>2
49 (40)
35 (30)
63 (48)
ASA grade
1
19 (16)
26 (22)
0 (0)
<0.00
2
87 (71)
72 (62)
95 (74)
3
15 (12)
17 (15)
32 (25)
4
1 (1)
1 (1)
1 (1)
Surgical grade
Minor
40 (33)
44 (38)
39 (30)
0.185
Intermediate
50 (41)
40 (35)
65 (50)
Major
32 (26)
31 (27)
26 (20)
Surgical type
Upper GI
37 (30)
22 (19)
25 (19)
0.04
Lower GI
35 (29)
51 (44)
45 (35)
HPB
50 (41)
42 (37)
60 (46)
Indication
Benign
92 (75)
86 (74)
102 (78)
0.713
Malignant
30 (25)
30 (26)
28 (22)
Operative approach
Endoscopic/ultrasound
37 (30)
43 (37)
42 (32)
0.104
Laparoscopic
35 (29)
27 (23)
49 (38)
Open
50 (41)
46 (40)
39 (30)
Smoking status
Current
60 (49)
66 (57)
68 (53)
0.224
Ex-smoker
30 (25)
30 (26)
24 (19)
Never
32 (26)
18 (16)
35 (27)
Unknown
0 (0)
2 (2)
2 (2)
Upper Gastrointestinal Surgery (Upper GI), Lower Gastrointestinal Surgery (Lower GI), and hepatobiliary surgery (HPB). means that these variables are significant when tested using chi-square.
