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Table 3 Adjusted hazards ratios (95% confidence intervals) of SICF score for mortality from all causes among persons aged 60+ y in NHANES III

From: Cognitive function, social integration and mortality in a U.S. national cohort study of older adults

Variable

 

Model I

Model II

  

Hazard ratio

95% CI

Hazard ratio

95% CI

 

17

1.00

 

1.00

 

SICF

14–16

1.10

0.82–1.80

1.11

0.82–1.49

score

12–13

1.07

0.85–1.35

1.06

0.84–1.35

 

0–11

1.43*

1.13–1.80

1.36+

1.06–1.76

Age

Yr

1.09*

1.08–1.10

1.09*

1.08–1.10

Gender

Male

1.57*

1.42–1.73

1.57*

1.39–1.78

Ethnicity

AA

1.01

0.88–1.17

1.07

0.91–1.26

 

MA

0.72

0.58–0.91

0.81

0.59–1.12

Education

< HS

1.01

0.88–1.16

0.96

0.84–1.09

Region

South

0.94

0.76–1.15

0.88

0.70–1.12

Urbanized

Yes

1.05

0.87–1.26

1.02

0.83–1.25

SR health

F/P

1.72*

1.49–1.99

1.47*

1.27–1.71

Morbidity

Yes

1.55*

1.35–1.79

1.48*

1.28–1.72

Mobility

Limited

1.25*

1.08–1.45

1.29*

1.13–1.48

SBP

Mm Hg

  

1.00

1.00–1.00

BMI

Kg/m2

  

0.96*

0.94–0.97

Smoking

Current

  

1.69*

1.39–2.06

 

Former

  

1.34*

1.14–1.58

Alcohol

Yes

  

0.79*

0.67–0.94

Physical activity

Low

  

1.75*

1.52–2.02

 

Average

  

1.26*

1.10–1.44

Reg. care

Yes

  

1.05

0.87–1.25

Social-network index

3–4

  

1.00

 
 

2

  

1.02

0.88–1.19

 

0–1

  

1.24+

1.02–1.52

  1. CI, confidence interval
  2. SR self-reported; F/P fair-poor; Reg. care, regular care by personal physician.
  3. * p < = 0.01, +P < 0.05