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Table 1 Internal consistency and test-retest reliability of PRAC

From: Peripapillary retinal artery in first diagnosed and untreated normal tension glaucoma

 

Internal correlation coefficient (95% CI)

Intraclass correlation coefficient (95% CI)

NTG group

Normal group

NTG group

Normal group

(n = 102)

(n = 120)

(n = 102)

(n = 120)

Superotemporal PRAC

0.998 (0.994–0.999)

0.995 (0.981–0.999)

0.978 (0.952–0.990)

0.983 (0.940–0.995)

Inferotemporal PRAC

0.995 (0.989–0.998)

0.995 (0.928–0.999)

0.975 (0.946–0.989)

0.976 (0.915–0.993)

Superonasal PRAC

0.996 (0.992–0.998)

0.996 (0.984–0.999)

0.982 (0.961–0.992)

0.973 (0.906–0.992)

Inferonasal PRAC

0.996 (0.991–0.998)

0.993 (0.975–0.998)

0.980 (0.956–0.991)

0.975 (0.912–0.993)

  1. Two-way mixed-effect model