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Table 1 Comparison of baseline characteristics between prior bariatric surgery and morbid obesity in diabetes mellitus patients undergoing major noncardiac surgery

From: Prior bariatric surgery and perioperative cardiovascular outcomes following noncardiac surgery in patients with type 2 diabetes mellitus: hint from National Inpatient Sample Database

Variables

Morbid obesity

(N = 1,407,818, %)

Prior-BS

(N = 119,002, %)

P-value

Mean age (SE)

57.06 (0.08)

56.65 (0.09)

< 0.0001

Female

903,144 (64.15)

85,722 (72.03)

< 0.0001

Race

< 0.0001

 White

900,133 (63.94)

82,259 (69.12)

 

 Black

188,572 (13.39)

12,648 (10.63)

 

 Hispanic

108,798 (7.73)

7263 (6.10)

 

 Other

49,465 (3.51)

3353 (2.82)

 

 Missing

160,850 (11.43)

13,478 (11.33)

 

Elective surgery

880,610 (62.55)

70,994 (59.66)

< 0.0001

Smoking

299,815 (21.30)

27,403 (23.03)

< 0.0001

Alcohol abuse

13,173 (0.94)

1358 (1.14)

0.0043

Drug abuse

14,596 (1.04)

1341 (1.13)

0.2402

Dyslipidemia

184,342 (13.09)

11,594 (9.74)

< 0.0001

Hypertension

1,120,839 (79.62)

86,518 (72.70)

< 0.0001

Coronary artery disease

250,654 (17.80)

18,493 (15.54)

< 0.0001

End stage renal disease

211,300 (15.01)

11,105 (9.33)

< 0.0001

Congestive heart failure

156,748 (11.13)

6434 (5.41)

< 0.0001

Chronic lung disease

353,349 (25.10)

24,857 (20.89)

< 0.0001

Chronic liver disease

83,095 (5.90)

4083 (3.43)

< 0.0001

Peripheral vascular disorders

102,994 (7.32)

5490 (4.61)

< 0.0001

Malignancy

28,561 (2.03)

1814 (1.52)

< 0.0001

Anemia

255,997 (18.18)

24,276 (20.40)

< 0.0001

Valvular disease

40,325 (2.86)

3047 (2.56)

0.0068

Prior venous thromboembolism

62,459 (4.44)

7368 (6.19)

< 0.0001

Prior transient ischemic attack/stroke

59,134 (4.20)

5422 (4.56)

0.0171

Prior myocardial infarction

65,683 (4.67)

5638 (4.74)

0.6295

Prior percutaneous coronary intervention

62,215 (4.42)

6625 (5.57)

< 0.0001

Prior coronary artery bypass grafting

53,829 (3.82)

4827 (4.06)

0.1007

Uncontrolled diabetes mellitus

168,409 (11.96)

6070 (5.10)

< 0.0001

Diabetes mellitus with complications

245,276 (17.42)

15,966 (13.42)

< 0.0001

BMI categories

–

 BMI < 30 kg/m2

–

60,443 (50.79)

 

 30 ≤ BMI < 40 kg/m2

–

19,862 (16.69)

 

 BMI ≥ 40 kg/m2

1,407,818 (100)

38,697 (32.52)

 

Surgery type

< 0.0001

 General

582,299 (41.36)

44,587 (37.47)

 

 Genitourinary

45,714 (3.25)

4260 (3.58)

 

 Neurosurgery

44,539 (3.17)

4419 (3.72)

 

 Orthopedic

502,649 (35.70)

48,709 (40.93)

 

 Otolaryngology

8654 (0.61)

360 (0.30)

 

 Skin/breast

93,878 (6.67)

8655 (7.27)

 

 Thoracic

16,382 (1.17)

1140 (0.96)

 

 Vascular

100,429 (7.13)

5104 (4.29)

 

 Other

13,276 (0.94)

1767 (1.48)

 
  1. SE standard error, BS bariatric surgery