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Table 2 Multivariate adjusted correlates of good global self-rated health status in the China Kadoorie Biobank study, 2004–2008a

From: The distribution and correlates of self-rated health in elderly Chinese: the China Kadoorie Biobank study

Variables

Model 1

Model 2

Model 3b

OR

95% CI

OR

95% CI

OR

95% CI

Demographic factors

 Age (ref. = 60–64 yr)

  65–69 yr

0.91

0.88, 0.93

0.93

0.90, 0.95

1.02

0.99, 1.05

  ≥ 70 yr

0.84

0.81, 0.86

0.88

0.85, 0.91

1.05

1.01, 1.08

 Gender (ref. = female)

1.41

1.37, 1.44

1.35

1.31, 1.38

1.26

1.22, 1.31

 Residential area (ref. = Rural)

1.23

1.20, 1.25

1.20

1.17, 1.23

1.28

1.24, 1.32

Socioeconomic factors

 Marital status (ref. = Married)

  windowed

  

1.04

1.01, 1.07

1.06

1.02, 1.09

  Separated/divorced/never married

0.84

0.75, 0.94

0.86

0.77, 0.97

 Educational level (ref. = No formal school)

  Primary school

  

1.04

1.01, 1.08

1.05

1.01, 1.08

  Middle or high school

  

1.13

1.09, 1.17

1.17

1.12, 1.22

  College or university

  

1.32

1.24, 1.41

1.41

1.32, 1.50

 Annual household income, US Dollar (ref. = 0–1449)

  1450–2899

  

1.10

1.07, 1.14

1.11

1.07, 1.14

  2890–5072

  

1.15

1.10, 1.19

1.14

1.10, 1.19

  ≥ 5073

  

1.29

1.23, 1.34

1.29

1.23, 1.35

 House ownership (ref. = No)

1.16

1.13, 1.20

1.16

1.12, 1.19

Health behaviors

 Smoking status (ref. = Never smoker)

  Former smoker and quit by choices

  

1.14

1.08, 1.21

  Former smoker and quit by illness

  

0.66

0.62, 0.70

  Occasional smoker

    

0.93

0.88, 0.98

  Current smoker

    

0.99

0.95, 1.03

 Alcohol status (ref. = Never drinker)

  Former drinker

    

0.80

0.75, 0.86

  Occasional drinker

    

1.24

1.20, 1.28

  Current drinker

    

1.41

1.36, 1.47

 Physical activity (MET-h/day) (ref. = Q1)

  Q2

    

1.33

1.29, 1.37

  Q3

    

1.41

1.36, 1.47

  Q4

    

1.55

1.48, 1.63

 BMI category (ref. = Normal weight)

  Underweight

    

0.70

0.67, 0.74

  Overweight

    

1.10

1.07, 1.13

  Obesity

    

0.96

0.92, 1.00

 Weight change in the past year (ref. = Change ±2.5 kg)

  Lost ≥2.5 kg

    

0.75

0.72, 0.78

  Gained ≥2.5 kg

    

1.08

1.03, 1.13

  1. Abbreviations: BMI Body mass index, CI Confidence intervals, MET Metabolic equivalent task, OR Odds ratio
  2. aFor residential area, adjusted for all other variables shown in the table. For other factors, adjusted for 10 study location and all other variables shown in the table
  3. bModel 3: adjusted for all other variables plus cardiometabolic diseases, respiratory diseases, musculoskeletal diseases, mental diseases, digestive diseases, cancer and other diseases
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BMC Geriatrics

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