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Table 4 Intraclass correlation coefficients (ICC) for comparison of systolic and diastolic blood pressure (SBP/DBP) 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 SBP (mmHg)

  

  Maximum

126.14 ± 5.11 (115 ~ 142)

0.953 (0.884 ~ 0.987)

  Minimum

116.64 ± 5.97 (107 ~ 127)

0.971 (0.928 ~ 0.992)

  Fluctuation†

9.50 ± 2.87 (5 ~ 16)

0.500 (-0.086 ~ 0.847)

Sitting DBP (mmHg)

  

  Maximum

73.48 ± 4.40 (66 ~ 89)

0.856 (0.643 ~ 0.959)

  Minimum

64.20 ± 3.15 (59 ~ 71)

0.859 (0.656 ~ 0.960)

  Fluctuation†

9.28 ± 3.64 (5 ~ 20)

0.794 (0.502 ~ 0.940)

Supine SBP (mmHg)

  

  Maximum

127.24 ± 4.46 (118 ~ 135)

0.972 (0.931 ~ 0.992)

  Minimum

117.96 ± 6.96 (108 ~ 130)

0.986 (0.965 ~ 0.996)

  Fluctuation†

9.28 ± 3.59 (3 ~ 18)

0.886 (0.722 ~ 0.967)

Supine DBP (mmHg)

  

  Maximum

71.74 ± 4.81 (64 ~ 87)

0.906 (0.763 ~ 0.973)

  Minimum

62.10 ± 3.44 (51 ~ 70)

0.830 (0.584 ~ 0.951)

  Fluctuation†

9.64 ± 4.15 (4 ~ 25)

0.837 (0.602 ~ 0.954)

  1. CI Confidence interval, SD Standard deviation.
  2. †Difference between the maximum and minimum BP values observed in a single day.
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BMC Ophthalmology

ISSN: 1471-2415

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