Table 1 Demographics and ocular characteristics of study population.

From: Global assessment of arteriolar, venular and capillary changes in normal tension glaucoma

 

Normal (n = 68)

NTG (n = 100)

P value*

Eyes (n)

68

100

 

Sex (M/F)

20/48

53/47

0.002

Age at recruitment (years)

57.71 (11.09)

58.86 (12.0)

0.097

Hypertension, n (%)

21 (30.88%)

31 (31%)

0.987

Obstructive sleep apnea, n (%)

0 (0%)

8 (8%)

0.017

Cerebrovascular accident, n (%)

3 (4.41%)

1 (1%)

0.26

Ischaemic heart disease, n (%)

6 (8.82%)

6 (6%)

0.485

SBP (mmHg)

139.57 (21.58)

134.74 (20.26)

0.141

DBP (mmHg)

81.71 (12.07)

80.18 (9.91)

0.372

IOP (mmHg)

14.07 (2.93)

14.88 (2.95)

0.084

CCT (microns)

543.87 (34.25)

535.4 (33.03)

0.11

Spherical errors (D)

 − 0.69 (2.52)

 − 3.19 (3.87)

 < 0.001

Axial length (mm)

24.08 (1.23)

25.53 (1.76)

 < 0.001

SAP MD (dB)

0.18 (0.90)

 − 6.73 (5.49)

 < 0.001

SAP PSD (dB)

1.62 (0.34)

7.41 (4.11)

 < 0.001

SAP VFI (%)

99.29 (0.83)

82.42 (16.64)

 < 0.001

Average RNFL thickness, Cirrus (μm)

95.04 (9.58)

72.41 (10.24)

< 0.001

  1. CCT central corneal thickness; DBP diastolic blood pressure; IOP intraocular pressure; MD mean deviation; NTG normal tension glaucoma; PSD pattern standard deviation; VFI visual field index; RNFL retinal nerve fiber layer; SAP standard automated perimetry; SBP systolic blood pressure.
  2. *Statistical significance tested by independent samples t test (for continuous variables) or Chi-square test (for categorical variables).
Back to article page