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Table 5 Intraclass correlation coefficients (ICC) for comparison of mean ocular perfusion pressure (MOPP) parameters for five daily visits among healthy young individuals (n = 10)

From: Instability of 24-hour intraocular pressure fluctuation in healthy young subjects: a prospective, cross-sectional study

 

Mean ± SD (range)

ICC (95% CI)

Sitting MOPP (mmHg)

  

  Maximum

47.92 ± 2.65 (44 ~ 59)

0.857 (0.642 ~ 0.959)

  Minimum

41.30 ± 4.00 (23 ~ 48)

0.652 (0.146 ~ 0.901)

  Fluctuation§

6.66 ± 3.67 (3 ~ 26)

0.003 (-1.117 ~ 0.691)

Supine MOPP (mmHg)

  

  Maximum

47.04 ± 3.10 (42 ~ 56)

0.931 (0.832 ~ 0.980)

  Minimum

39.46 ± 5.10 (21 ~ 48)

0.841 (0.615 ~ 0.954)

  Fluctuation§

7.48 ± 4.46 (2 ~ 25)

0.670 (0.185 ~ 0.906)

  1. CI Confidence interval, SD Standard deviation.
  2. Measured by Goldmann applanation tonometry.
  3. Measured by a Tono-Pen AVIA tonometer (Reichert Technologies Inc., Depew, NY, USA).
  4. §Difference between the maximum and minimum MOPP values observed in a single day.