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Table 2 Multivariable mixed effect linear model of body mass index among breast cancer patients

From: Impact of post-diagnosis weight change on survival outcomes in Black and White breast cancer patients

 

BMI at baseline, kg/m2

Slope over time in BMI, kg/m2/year

Mean (SE)*

P

Mean (SE)*

P

Race/ethnicity

 

 White

27.85 (0.17)

Ref.

− 0.07 (0.02)

Ref.

 Black

31.88 (0.20)

< 0.001

− 0.47 (0.02)

< 0.001

 Asian

25.39 (0.60)

< 0.001

− 0.30 (0.05)

< 0.001

 Hispanic

29.54 (0.73)

0.023

− 0.08 (0.07)

0.94

Age at diagnosis

 

 < 50

28.75 (0.22)

Ref.

− 0.16 (0.02)

Ref.

 ≥ 50

30.26 (0.16)

< 0.001

− 0.33 (0.01)

< 0.001

Carlson comorbidity index at diagnosis

 

 0

29.30 (0.15)

Ref.

− 0.19 (0.01)

Ref.

 1+

30.96 (0.26)

< 0.001

− 0.50 (0.02)

< 0.001

Tumor stage

 

 0

30.09 (0.34)

0.064

− 0.14 (0.03)

0.82

 1

29.42 (0.22)

Ref.

− 0.15 (0.02)

Ref.

 2

29.71 (0.21)

0.35

− 0.30 (0.02)

< 0.001

 3

30.48 (0.36)

0.016

− 0.59 (0.03)

< 0.001

Chemotherapy

 

 No

29.48 (0.21)

Ref.

− 0.32 (0.02)

Ref.

 Yes

30.00 (0.20)

0.10

− 0.25 (0.02)

0.009

Smoking status at diagnosis

 

 Never

29.56 (0.16)

Ref.

− 0.26 (0.01)

Ref.

 Previous

30.44 (0.24)

0.002

− 0.36 (0.02)

< 0.001

 Current

29.25 (0.36)

0.43

− 0.20 (0.03)

0.11

  1. *Multivariable fitted mean body mass index (BMI) and standard errors (SE) as well as the fitted mean slope of BMI over time are presented. All the variables in the table were included in the multivariable model