Table 1 Mean values and associations (univariate analysis) between the ankle brachial index (defined as the ratio of the highest values of ankle systolic blood pressure of both sides divided by the highest value of arm systolic blood pressure of both sides) and systemic parameters in the Ural Eye and Medical Study.

From: Ankle-brachial index and ocular diseases in a Russian population

Parameter

Interval

n

Mean

Non-standardized Regression coefficient B

95% Confidence Interval of B

P Value

Age

1-year intervals

3,187

57.3 ± 9.7

−0.001

−0.002, 0.000

0.006

Gender

Men/Women

3,187

1765/1422

0.04

0.03, 0.05

<0.001

Region of habitation

Urban/Rural

3,187

973/2214

−0.01

−0.03, 0.003

0.11

Ethnicity

Non-Russian ethnicity/Russian

3,187

2590/597

−0.01

−0.03, 0.01

0.18

Body height

1 cm

3,187

166.4 ± 8.8

−0.002

−0.002, −0.001

<0.001

Body weight

kg

3,187

76.9 ± 14.6

−0.002

−0.002, −0.001

<0.001

Body mass index

kg/m2

3,187

27.7 ± 4.8

−0.004

−0.005, −0.003

<0.001

Waist circumference

cm

3,187

93.9 ± 13.4

−0.002

−0.002, −0.001

<0.001

Hip circumference

cm

3,187

102.6 ± 12.8

−0.001

−0.001, 0.000

0.002

Waist/hip circumference ratio

Ratio

3,187

0.92 ± 0.09

−0.25

−0.32, −0.18

<0.001

Socioeconomic Score

Score

3,185

5.94 ± 1.24

0.009

0.004, 0.014

0.001

Level of education

Illiteracy/Passing 5th grade/8th grade/10th grade/11th grade/Graduates/Specialized secondary education/Post graduates

3,187

5.8 ± 1.2

0.005

0.000, 0.010

0.05

Physical activity Score

Score

3,156

9.1 ± 8.4

0.001

0.000, 0.002

0.02

Smoking, currently

Yes/No

3,186

459/2727

−0.006

−0.02, 0.01

0.54

Smoking, package years

Number

3,146

4.6 ± 13.1

0.000

−0.001, 0.000

0.56

Alcohol consumption, any

Yes/No

3,187

923/2264

0.02

0.005, 0.03

0.007

In a week how many days do you eat fruits?

Number of days

3,167

5.6 ± 1.8

0.002

−0.002, 0.006

0.27

In a week how many days do you eat vegetables?

Number of days

3,183

6.4 ± 1.2

0.005

0.000, 0.010

0.06

History of cardiovascular disorders including stroke

Yes/No

3,187

792/2,395

−0.003

−0.02, 0.01

0.67

History of angina pectoris

Yes/No

3,187

275/2,912

0.03

0.002, 0.05

0.03

History of asthma

Yes/No

3,187

66/3,121

−0.002

−0.05, 0.04

0.94

History of arthritis

Yes/No

3,187

802/2,385

0.01

−0.003, 0.03

0.12

History of previous bone fractures

Yes/No

3,187

952/2,235

0.005

−0.01, 0.02

0.46

History of low back pain

Yes/No

3,187

1,627/1,560

0.02

0.004, 0.03

0.009

History of thoracic spine pain

Yes/No

3,187

695/2,492

0.02

0.004, 0.04

0.02

History of neck pain

Yes/No

3,187

892/2,295

0.02

0.002, 0.30

0.03

History of headache

Yes/No

3,187

1,466/1,721

0.02

0.004, 0.03

0.01

History of cancer

Yes/No

3,187

77/3,110

0.000

−0.04, 0.04

0.99

History of dementia

Yes/No

3,187

13/3,174

−0.04

−0.14, 0.06

0.47

History of diarrhea

Yes/No

3,187

10/3,177

0.15

0.03, 0.27

0.01

History of iron-deficiency anemia

Yes/No

3,187

141/3,046

0.08

0.05, 0.11

<0.001

History of low blood pressure and hospital admittance

Yes/No

3,176

98/3,078

−0.01

−0.05, 0.02

0.45

History of osteoarthritis

Yes/No

3,187

593/2594

0.03

0.008, 0.04

0.003

History of skin disease

Yes/No

3,187

147/3,040

0.02

−0.01, 0.05

0.20

History of thyroid disease

Yes/No

3,187

228/2,959

0.03

0.01, 0.06

0.01

History of falls

Yes/No

3,187

513/2,674

0.01

−0.01, 0.02

0.50

History of unconsciousness

Yes/No

3,187

206/2,981

0.003

−0.02, 0.03

0.83

Age of the last menstrual bleeding

Years

1,121

48.0 ± 5.2

−0.001

−0.003, 0.001

0.39

Age of last regular menstrual bleeding

Years

1,123

47.9 ± 5.2

−0.001

−0.003, 0.001

0.28

History of menopause

Yes/No

1,409

1125/284

−0.04

−0.07, −0.01

0.003

Serum concentration of:

Alanine aminotransferase

IU/L

3,165

20.4 ± 11.0

−0.001

−0.002, −0.001

<0.001

Aspartate aminotransferase

IU/L

3,169

20.4 ± 9.6

−0.002

−0.002, −0.001

<0.001

Aspartate aminotransferase-to- Alanine aminotransferase ratio

Ratio

3,164

1.07 ± 0.51

−0.004

−0.02, 0.01

0.55

Bilirubin, total

µmol/L

3,170

16.2 ± 11.6

0.000

0.000, 0.001

0.69

High-density lipoproteins

mmol/L

3,170

2.23 ± 0.78

−0.002

−0.01, 0.01

0.68

Low-density lipoproteins

mmol/L

3,170

2.13 ± 1.08

−0.001

−0.01, 0.01

0.86

Cholesterol

mmol/L

3,170

5.70 ± 1.37

−0.001

−0.01, 0.003

0.59

Triglycerides

mmol/L

3,169

1,37 ± 0.67

−0.001

−0.01, 0.01

0.78

Rheumatoid factor

IU/mL

3,170

0.1 ± 0.3

−0.01

−0.03, 0.01

0.55

Erythrocyte sedimentation rate

Mm/min

3,170

13.4 ± 11.3

0.001

0.00, 0.002

0.001

Glucose

mmol/L

3,170

4.99 ± 1.71

−0.01

−0.01, −0.003

<0.001

Urea

mmol/L

3,170

4.72 ± 1.36

−0.01

−0.01, −0.002

0.003

Creatinine

µmol/L

3,161

93.0 ± 21.7

0.000

−0.001, 0.000

0.002

Hemoglobin

g/L

3,170

144.7 ± 14.6

−0.001

−0.001, 0.000

<0.001

Erythrocyte count

106 cells/µL

3,170

4.55 ± 0.38

−0.04

−0.05, −0.02

<0.001

Leukocyte count

109 cells/L

3,170

5.14 ± 1.44

0.000

−0.005, 0.005

1.00

Prevalence of diabetes mellitus

Yes/No

  

−0.02

−0.04, 0.002

0.08

Estimated glomerular filtration rate

30 mL/min/1.73 m²

3,161

71.8 ± 16.8

0.001

0.000, 0.001

0.006

Stage of chronic kidney disease

0–5

3,161

21.4 ± 6.8

−0.001

−0.002, 0.000

0.04

Anemia

Yes/No

3,170

220/2950

0.03

0.000, 0.05

0.049

Blood pressure, systolic, right arm

mm Hg

3,187

133.5 ± 20.0

−0.004

−0.004, −0.004

<0.001

Blood pressure, systolic, left arm

mm Hg

3,187

133.3 ± 20.0

−0.004

−0.004, −0.004

<0.001

Blood pressure, systolic, right ankle

mm Hg

3,187

168.0 ± 24.5

0.004

0.004, 0.004

<0.001

Blood pressure, systolic, left ankle

mm Hg

3,187

166.6 ± 24.6

0.004

0.004, 0.004

<0.001

Blood pressure, diastolic, right arm

mm Hg

3,187

82.6 ± 10.3

−0.005

−0.006, −0.005

<0.001

Blood pressure, diastolic, left arm

mm Hg

3,187

82.1 ± 11.0

−0.005

−0.005, −0.004

<0.001

Blood pressure, diastolic, right ankle

mm Hg

3,187

101.8 ± 12.7

0.005

0.005, 0.006

<0.001

Blood pressure, diastolic, left ankle

mm Hg

3,187

100.9 ± 12.9

0.006

0.005, 0.006

<0.001

Mean systolic blood pressure (mean of both arms and both legs)

mm Hg

3,187

150.3 ± 19.2

0.001

0.001, 0.001

<0.001

Mean diastolic blood pressure (mean of both arms and both legs)

mm Hg

3,187

91.8 ± 9.2

0.002

0.001, 0.003

<0.001

Arterial hypertension

Yes/No

3,187

2788/399

−0.14

−0.16, −0.12

<0.001

Arterial hypertension, stage

0–4

3,187

2.2 ± 1.0

−0.06

−0.07, −0.06

<0.001

Prevalence of chronic obstructive pulmonary disease

Yes/No

3,183

161/3022

0.02

−0.01, 0.05

0.14

Hearing loss

Hearing loss score (0–44)

3,187

5.50 ± 11.9

0.000

0.00, 0.001

0.32

Depression Score

Depression score unit (range: −4 to +15)

3,186

0.68 ± 3.69

0.001

0.000, 0.003

0.09

State-trait anxiety inventory

State-trait anxiety inventory score (range: −7 to 13)

3,185

−1.09 ± 3.39

0.000

−0.002, 0.002

0.99

Manual dynamometry, right hand

dekaNewton

3,180

33.1 ± 12.0

−0.001

−0.002, 0.000

<0.001

Manual dynamometry, right hand

dekaNewton

3,179

29.6 ± 11.6

−0.001

−0.002, −0.001

<0.001