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Table 2 The parameters of cosinor analysis for different groups of subjects

From: Longitudinal stability of the diurnal rhythm of intraocular pressure in subjects with healthy eyes, ocular hypertension and pigment dispersion syndrome

Subjects

n

MESOR [mmHg]

Amplitude [mmHg]

Acrophase [h:min]

Circ. SD [h:min]

All

52

16.0 ± 2.3

1.9 ± 0.6

10:37

4:52

Normal

30

15.4 ± 1.5

1.7 ± 0.4

10:32

5:15

OHT

11

19.0 ± 2.0b,c

2.6 ± 0.7b,c

09:42

4:06

PDS

11

14.9 ± 1.8

2.0 ± 0.6

11:48

4:21

Younga

26

16.2 ± 2.1

1.9 ± 0.5

10:56

4:30

Olda

26

15.9 ± 2.4

1.9 ± 0.7

10:14

5:12

Hospital

13

15.7 ± 1.8

2.1 ± 0.6

10:51

3:42

Ambulatory

16

16.6 ± 2.5

2.0 ± 0.7

10:22

4:53

Mixed

23

15.8 ± 2.3

1.7 ± 0.6

10:36

5:34

  1. MESOR: Midline Estimating Statistic Of Rhythm, i.e. mean IOP level of the cosine curve; acrophase: time of peak of cosine curve; circ. SD: circular standard deviation.
  2. a)Young: ≤ median age of 44.4 years; old: > 44.4 years.
  3. b)Tukey HSD test significant vs. normal (only performed if ANOVA was significant).
  4. c)Tukey HSD test significant vs. PDS.
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BMC Ophthalmology

ISSN: 1471-2415

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