Table 5 Factors influencing body mass index of the cancer survivors (N = 4,553,669)

Demographic characteristics

 Age (years)

0.02

-0.01

0.09

0.54

0.588

 Gender

Male (Ref: female)

-0.30

-0.44

-0.15

-4.07

< 0.001

 Marital status

Married (Ref: single)

0.61

0.32

0.89

4.20

< 0.001

 Educational level

≤ Middle school (Ref: high school)

0.11

-0.06

0.28

1.30

0.186

 Economic activity

No (Ref: yes)

-0.17

-0.28

-0.17

-3.27

0.002

Health-related characteristics

 HTN

Yes (Ref: no)

0.49

0.39

0.60

9.07

< 0.001

 Sleep time (hours)

−0.11

-0.05

0.03

−0.55

0.577

 ECOG PS

2 (Ref: 1)

0.04

-0.18

0.24

0.41

0.685

 Mental health counseling

Yes (Ref: no)

−0.02

-0.27

0.23

−0.16

0.870

 Hemoglobin (g/dL)

0.13

0.08

0.18

5.29

< 0.001

 Platelet (10³/µL)

0.01

-3.20

0.02

1.92

0.057

 RBC (10^6/µL)

0.11

-0.08

0.30

1.11

0.269

 WBC (10³/µL)

0.03

-0.04

0.05

0.15

0.882

Nutrition-related characteristics

 Frequency of breakfast (per week)

−0.15

-0.19

-0.11

−6.49

< 0.001

 Frequency of lunch (per week)

−0.06

-0.13

0.02

−1.53

0.140

 Energy (kcal)

0.01

0.00

0.01

1.11

0.267

 Carbohydrate (g)

0.01

-0.01

0.01

−0.42

0.678

 Protein (g)

−0.01

-0.04

0.01

−1.05

0.296

 Fat (g)

−0.02

-0.05

0.01

−1.11

0.271

 Fiber (g)

0.01

-0.04

0.01

0.17

0.868

 Sodium (g)

5.17

-9.37

9.39

2.41

0.017

 Vitamin D (mg)

0.01

0.00

0.15

3.02

0.003

 Vitamin C (mg)

−0.01

-0.04

0.05

−3.43

0.001

R² = 0.20