Table 4 Hazard ratios (HR) for COVID-19 mortality according to age groups and BMI categories.

From: Association between obesity and COVID-19 mortality and length of stay in intensive care unit patients in Brazil: a retrospective cohort study

 < 60 years

Model 1 (n = 3989)

Model 2 (n = 2783)

Model 3 (n = 2783)

n

HR

95%CI

p-value

n

HR

95%CI

p-value

n

HR

95%CI

p-value

Underweight

24

2.30

1.03–5.17

0.04

18

3.74

1.39–10.07

0.009

18

3.71

1.37–9.99

0.01

Normal/overweight

1731

Ref

–

–

1017

Ref

–

–

1017

Ref

–

–

Mild/moderate obesity

1812

1.12

0.96–1.32

0.15

1353

1.10

0.92–1.32

0.29

1353

1.11

0.92–1.33

0.28

Severe obesity

422

1.27

1.02–1.57

0.03

395

1.27

1.01–1.61

0.04

395

1.25

0.99–1.58

0.06

 

Model 1 (n = 3961)

Model 2 (n = 3690)

Model 3 (n = 3690)

Underweight

47

1.41

0.92–2.15

0.11

45

1.03

0.66–1.61

0.89

45

1.03

0.66–1.60

0.91

Normal/overweight

2532

Ref

–

–

2319

Ref

–

–

2319

Ref

–

–

Mild/moderate obesity

1240

0.82

0.74–0.91

 < 0.001

1190

0.87

0.78–0.97

0.02

1190

0.87

0.78–0.97

0.01

Severe obesity

142

1.01

0.79–1.28

0.94

136

1.19

0.93–1.53

0.17

136

1.17

0.91–1.51

0.22

  1. Model 1: unadjusted.
  2. Model 2: adjusted for age, sex, smoking status.
  3. Model 3: adjusted for age, sex, smoking status, hypertension, diabetes.
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