Table 3 Characteristics of lost-to-follow-up NTG suspect patients divided into two groups by developing glaucoma (glaucoma vs. glaucoma suspect)

Sex (M:F) (n, %)

5:2 (71.4:28.6)

23:42 (35.4:64.6)

0.063^a

Age (years)

45.00 ± 13.09

44.42 ± 12.26

0.894^b

Loss to follow-up period (months)

49.14 ± 10.90

44.29 ± 13.79

0.199^b

Glaucoma family history (n, %)

2 (28.6)

7 (10.8)

0.176^a

Past medical history (n, %)

 Diabetes mellitus

1 (14.3)

3 (4.6)

0.289^a

 Hypertension

1 (14.3)

6 (9.2)

0.668^a

Baseline IOP (mm Hg)

18.43 ± 2.44

14.95 ± 2.47

0.003^b,*

MD (dB)

−1.01 ± 0.84

−0.87 ± 1.21

0.704^b

PSD (dB)

1.68 ± 0.39

1.53 ± 0.34

0.296^b

Average RNFL thickness (μm)

78.14 ± 7.60

92.55 ± 7.65

<0.001^b,*

VCDR

0.67 ± 0.05

0.67 ± 0.07

0.774^b

Central corneal thickness (μm)

557.00 ± 35.15

560.68 ± 31.11

0.887^b

Refractive error (SE, diopter)

−3.06 ± 2.44

−1.32 ± 2.06

0.090^b

ONH characteristics (n, %)

 VCDR ≥ 0.6

3 (42.8)

45 (69.2)

0.160^a

 VCDR asymmetry ≤ 0.2

0 (0.0)

7 (10.8)

0.361^a

 Neural rim thinning

2 (28.6)

9 (13.8)

0.304^a

 Focal RNFL defect

1 (14.3)

2 (3.1)

0.159^a

 Diffuse RNFL defect

1 (14.3)

2 (3.1)

0.159^a