Table 2 Binary logistic regression analysis of the relationship between WC, WHtR, WWI and BADL impairment.

From: Association between central obesity and ADL impairment among the middle-aged and elderly population in China based on CHARLS

Character

Crude model

Model 1

Model 2

Model 3

OR (95%CI)

P

OR (95%CI)

P

OR (95%CI)

P

OR (95%CI)

P

WC

1.01(1.01,1.02)

< 0.0001

1.01(1.01,1.02)

< 0.0001

1.02(1.01,1.02)

< 0.0001

1.01(1.01,1.02)

< 0.001

Quartile 1

Reference

 

Reference

 

Reference

 

Reference

 

Quartile 2

1.05(0.89,1.24)

0.55

1.11(0.93,1.33)

0.24

1.13(0.94,1.34)

0.19

1.08(0.91,1.30)

0.38

Quartile 3

1.1(0.93,1.30)

0.27

1.15(0.96,1.37)

0.13

1.19(1.00,1.43)

0.05

1.11(0.92,1.33)

0.28

Quartile 4

1.39(1.18,1.64)

< 0.0001

1.49(1.25,1.77)

< 0.0001

1.58(1.32,1.88)

< 0.0001

1.36(1.13,1.64)

0.001

P for trend

 

< 0.0001

 

< 0.0001

 

< 0.0001

 

0.002

WC SD

1.14(1.07,1.20)

< 0.0001

1.16(1.09,1.23)

< 0.0001

1.19(1.12,1.26)

< 0.0001

1.13(1.06,1.20)

< 0.001

WC IQR

1.2(1.10,1.30)

< 0.0001

1.23(1.13,1.35)

< 0.0001

1.28(1.17,1.40)

< 0.0001

1.19(1.08,1.30)

< 0.001

WHtR

1.38(1.27,1.50)

< 0.0001

1.27(1.16,1.39)

< 0.0001

1.3(1.19,1.43)

< 0.0001

1.21(1.09,1.33)

< 0.001

Quartile 1

Reference

 

Reference

 

Reference

 

Reference

 

Quartile 2

1.14(0.96,1.35)

0.14

1.15(0.96,1.38)

0.12

1.18(0.98,1.41)

0.08

1.12(0.93,1.35)

0.22

Quartile 3

1.3(1.10,1.54)

0.003

1.28(1.07,1.54)

0.01

1.33(1.11,1.60)

0.002

1.21(1.00,1.46)

0.05

Quartile 4

1.64(1.39,1.93)

< 0.0001

1.44(1.20,1.73)

< 0.0001

1.51(1.26,1.82)

< 0.0001

1.3(1.07,1.58)

0.01

P for trend

 

< 0.0001

 

< 0.0001

 

< 0.0001

 

0.01

WHtR SD

1.25(1.18,1.32)

< 0.0001

1.18(1.10,1.25)

< 0.0001

1.2(1.12,1.28)

< 0.0001

1.14(1.06,1.22)

< 0.001

WHtR IQR

1.36(1.26,1.47)

< 0.0001

1.25(1.15,1.37)

< 0.0001

1.29(1.18,1.41)

< 0.0001

1.2(1.09,1.32)

< 0.001

WWI

1.47(1.38,1.57)

< 0.0001

1.14(1.06,1.22)

< 0.001

1.14(1.06,1.23)

< 0.001

1.1(1.02,1.19)

0.01

Quartile 1

Reference

 

Reference

 

Reference

 

Reference

 

Quartile 2

1.23(1.03,1.47)

0.03

1.12(0.93,1.35)

0.23

1.14(0.95,1.38)

0.17

1.08(0.89,1.30)

0.45

Quartile 3

1.58(1.32,1.87)

< 0.0001

1.26(1.04,1.51)

0.02

1.28(1.06,1.55)

0.01

1.18(0.98,1.43)

0.08

Quartile 4

2.36(2.00,2.79)

< 0.0001

1.36(1.12,1.65)

0.002

1.39(1.14,1.68)

0.001

1.26(1.03,1.53)

0.02

P for trend

 

< 0.0001

 

0.001

 

< 0.001

 

0.02

WWI SD

1.42(1.34,1.51)

< 0.0001

1.12(1.05,1.20)

< 0.001

1.13(1.06,1.21)

< 0.001

1.1(1.02,1.17)

0.01

WWI IQR

1.53(1.43,1.65)

< 0.0001

1.15(1.06,1.25)

< 0.001

1.16(1.07,1.26)

< 0.001

1.12(1.03,1.21)

0.01

  1. WC, waist circumference; WHtR, waist-to-height ratio; WWI, weight-adjusted waist Index. SD, standard deviation; IQR, interquartile range; OR, odds ratio; 95%CI, 95% confidence interval. Model 1: age, sex were adjusted; Model 2: age, sex, smoking, drinking, residence place, marital status, education were adjusted; Model 3: age, sex, smoke, drink, residence place, marital status, education, hypertension, dyslipidemia, DM were adjusted.
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