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Table 1 Population summary characteristics

From: Investigation of associations between retinal microvascular parameters and albuminuria in UK Biobank: a cross-sectional case-control study

 

All (n = 1877)

ACR (n = 963) < 3 mg/mmol

ACR (n = 914)

≥ 3 mg/mmol

p

Mean (SD)

Mean (SD)

Mean (SD)

Age (years)

58 (8)

58 (8)

58 (8)

0.58

Waist circumference (cm)

93 (15)

93 (15)

93 (15)

0.53

Systolic blood pressure (mmHg)

146 (22)

143 (21)

150 (22)

< 0.001

eGFR (ml/min/1.73m2)

88.8 (16.0)

88.5 (14.5)

89.1 (17.4)

0.39

IOP (mmHg)

16.48 (4.48)

16.41 (4.78)

16.54 (4.12)

< 0.001

LogMAR

0.03 (0.20)

0.03 (0.19)

0.04 (0.20)

0.07

CRAE (px)

22.35 (1.97)

22.33 (2.01)

22.38 (1.93)

0.62

CRVE (px)

28.70 (2.90)

28.71 (2.77)

28.68 (3.02)

0.87

AVR

0.78 (0.10)

0.78 (0.09)

0.78 (0.11)

0.19

FDa

1.28 (0.10)

1.28 (0.11)

1.27 (0.10)

0.01

FDv

1.31 (0.10)

1.32 (0.10)

1.30 (0.10)

0.01

Torta

3.00+ (9.00+)

3.00+ (9.00+)

3.00+ (9.00+)

0.78

Tortv

2.00+ (4.00+)

2.00+ (5.00+)

2.00+ (4.00+)

0.36

 

Number (%)

Number (%)

Number (%)

p

ACR stage A2

897 (48)

0 (0)

897 (98)

< 0.001

ACR stage A3

17 (1)

0 (0)

17 (2)

< 0.001

eGFR < 60 ml/min/1.73m2

65 (4)

21 (2)

44 (5)

0.001

Sex (Female)

1033 (55)

521 (54)

512 (56)

0.4

Blood pressure-lowering medication usage

347 (19)

152 (16)

195 (21)

< 0.001

Diabetes mellitus

209 (11)

78 (8)

131 (14)

< 0.001

Ever smoked

1098 (59)

543 (57)

555 (61)

0.06

White ethnicity

1642 (88)

846 (88)

796 (87)

0.58

Ever consumed alcohol

1752 (93)

905 (94)

847 (93)

0.22

Ever eye surgery

127 (7)

63 (7)

64 (7)

0.69

  1. SD standard deviation, eGFR Estimated glomerular filtration rate, IOP Intraocular pressure, LogMAR visual acuity assessed using a Logarithm of the Minimum Angle of Resolution chart, CRAE central retina arteriolar equivalent, CRVE central retinal venular equivalent, px pixels, AVR arteriovenous ratio, FDa/v arteriolar/venular fractal dimension, Torta/v arteriolar/venular tortuosity