Table 1 Characteristics of study participants based on race/ethnicity

From: Effect of blood pressure on the retinal vasculature in a multi-ethnic Asian population

Characteristics

Whole population (n=3749)

Chinese (n=2215)

Malay (n=807)

Indian (n=727)

P-valuea

Gender, male (%)

48.2

47.6

49.3

48.7

0.7

Hypertension (%)

39.3

36.6

45.9

40.6

<0.0001

Diabetes (%)

11.4

7.1

14.0

21.7

<0.0001

Current smoking (%)

12.0

10.3

17.0

11.7

<0.0001

Alcohol consumption (%)

33.7

44.6

6.4

30.8

<0.0001

Age, mean±s.d. (years)

49.2 (11.3)

48.7 (11.7)

48.9 (11.0)

50.7 (10.3)

0.0002

Systolic blood pressure, mean±s.d. (mm Hg)

131.6 (20.2)

129.5 (19.8)

136.3 (20.2)

132.6 (20.4)

<0.0001

Diastolic blood pressure, mean±s.d. (mm Hg)

77.8 (10.7)

77.0 (10.7)

79.5 (10.6)

78.6 (10.6)

<0.0001

Serum glucose, mean±s.d. (mmol l−1)

5.2 (1.6)

5.0 (1.2)

5.3 (1.8)

5.7 (2.2)

<0.0001

Body mass index, mean±s.d. (kg m−2)

24.3 (5.2)

22.9 (3.6)

26.3 (4.8)

26.2 (7.6)

<0.0001

Total cholesterol, mean±s.d. (mmol l−1)

5.2 (1.0)

5.2 (0.9)

5.5 (1.0)

5.2 (0.9)

<0.0001

HDL cholesterol, mean±s.d. (mmol l−1)

1.4 (0.4)

1.5 (0.4)

1.4 (0.3)

1.2 (0.3)

<0.0001

LDL cholesterol, mean±s.d. (mmol l−1)

3.2 (0.9)

3.1 (0.9)

3.4 (1.0)

3.3 (0.8)

<0.0001

Triglycerides, mean±s.d., mmol l−1

1.4 (0.9)

1.3 (0.9)

1.5 (1.2)

1.4 (0.7)

<0.0001

CRAE, mean±s.d. (μm)

143.8 (14.3)

143.4 (14.3)

145.4 (13.8)

143.0 (14.5)

0.0008

CRVE, mean±s.d. (μm)

220.8 (20.7)

219.5 (20.3)

226.9 (20.7)

218.0 (20.6)

<0.0001

AVR, mean±s.d.

0.65 (0.1)

0.66 (0.1)

0.64 (0.1)

0.66 (0.1)

<0.0001

  1. Abbreviations: AVR, arterio–venous ratio; CRAE, central retinal artery equivalent; CRVE, central retinal vein equivalent; HDL, high-density lipoprotein; LDL, low-density lipoprotein.
  2. The P-value represents difference in characteristics by ethnicity based on the analysis of variance or χ2 test as appropriate.