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Table 3 Adjusted mean of z-BMI and z-WHR in each subgroup and test for significance1, 2

From: Childhood obesity inequality in northeast China: joint effect of social economic status and school neighborhood environment

 

Girls

Boys

 

Adjusted mean

Coef

95%CI

P

Adjusted mean

Coef

95%CI

P

z-BMI

        

Poor families

0.10

-0.18

-0.36, 0.00

0.05

0.02

-0.15

-0.35, 0.06

0.19

M&L families

0.04

-0.25

-0.44, -0.05

0.01

0.01

-0.16

-0.38, 0.07

0.18

M&S families

0.28

Ref3

Ref3

Ref3

0.03

-0.14

-0.38, 0.10

0.26

M&P families

0.13

-0.16

-0.36, 0.05

0.13

0.11

-0.06

-0.28, 0.17

0.66

R&S families

0.11

-0.18

-0.38, 0.03

0.09

0.01

-0.15

-0.39, 0.08

0.20

R&H families

0.14

-0.14

-0.38, 0.10

0.25

0.17

Ref4

Ref4

Ref4

z-WHR

        

Poor families

-0.01

-0.23

-0.41, -0.06

0.01

0.00

0.22

0.00, 0.44

0.87

M&L families

-0.01

-0.24

-0.43, -0.04

0.02

-0.20

0.02

-0.23, 0.27

0.22

M&S families

0.22

Ref5

Ref5

Ref5

-0.10

0.12

-0.16, 0.40

0.40

M&P families

-0.08

-0.30

-0.51, -0.09

< 0.01

-0.10

0.12

-0.15, 0.39

0.76

R&S families

-0.03

-0.26

-0.46, -0.05

0.01

-0.22

Ref6

Ref6

Ref6

R&H families

-0.11

-0.33

-0.57, -0.09

0.01

-0.12

0.10

-0.25, 0.45

0.71

  1. 1 Multilevel mixed-effects linear regression models were fit for the relationship of composite SES groups with children’s BMI and with children’s WHR. All models were adjusted by age, and onset of puberty (initiation of menstrual periods for girls, appearance of voice change, facial hair, or increase in size of Adam’s apple for boys)
  2. 2 Results of four models were shown in the table: boys’ z-BMI, boys’ z-WHR, girls’ z-BMI and girls’ z-WHR
  3. 3 Girls from M&S families had the highest z-BMI and were selected as reference group
  4. 4 Boys from R&H families had the highest z-BMI and were selected as reference group
  5. 5 Girls from M&S families had the highest z-WHR and were selected as reference group
  6. 6 Boys from R&S families had the highest z-WHR and were selected as reference group