Table 1 Demographic characteristics and comorbidities prior to admission

Age, mean (SD), years

60.5 (16.1)

61.4 (16.7)

59.8 (15.2)

0.16

N, (%)

N, (%)

N, (%)

Sex

---

406 (52.7)

365 (47.3)

0.14

Race

0.16

 White

99 (12.7)

45 (11.1)

54 (14.8)

 Black

583 (75)

315 (77.6)

261 (71.7)

Other

95 (12.3)

46 (11.3)

49 (13.5)

Hospital site

0.87

 Tulane

298 (38.4)

158 (38.9)

140 (38.4)

 UMC ^a

478 (61.6)

248 (61.1)

225 (61.6)

 Obesity

409 (53.1)

257 (63.8)

151 (41.6)

< 0.0001

BMI (kg/m²)^b category

< 0.0001

 BMI < 25

164 (21.3)

69 (17.1)

93 (25.6)

 25 ≤ BMI < 30

198 (25.7)

77 (19.1)

119 (32.8)

 30 ≤ BMI < 35

157 (20.4)

89 (22.1)

68 (18.7)

 35 ≤ BMI < 40

118 (15.3)

76 (18.9)

42 (11.6)

 BMI ≥ 40

134 (17.4)

92 (22.8)

41 (11.3)

Diabetes

273 (35.2)

155 (38.2)

116 (31.8)

0.06

Hypertension

573 (73.8)

315 (77.6)

256 (70.1)

0.02

Dyslipidemia

291 (37.5)

158 (38.9)

132 (36.2)

0.4

Chronic obstructive pulmonary disease

140 (18.8)

87 (22.1)

52 (15.1)

0.015

Asthma

83 (10.7)

58 (14.3)

25 (6.9)

0.001

Cerebrovascular disease

94 (12.6)

51 (12.9)

43 (12.5)

0.84

Cardiovascular disease

154 (20.7)

84 (21.3)

70 (20.3)

0.73

 Heart failure

109 (14.7)

62 (15.7)

47 (13.6)

0.42

 Myocardial infarction

46 (6.2)

20 (5.1)

26 (7.5)

0.17

 Peripheral vascular disease

25 (3.4)

16 (4.1)

9 (2.6)

0.27

 Chronic kidney disease

126 (16.9)

62 (15.7)

64 (18.6)

0.31

 Chronic liver disease

36 (4.6)

11 (2.7)

25 (6.9)

0.007

 Dementia

55 (7.4)

34 (8.6)

20 (5.8)

0.14

Charlson Index, mean (SD)

3.7 (2.8)

3.8 (2.7)

3.7 (2.7)

0.68