Table 1 Evaluation parameters of the men and women.

From: Gender differences in the influence of obstructive sleep apnea on optic nerve head circulation

Parameter

Men (n = 150)/Women (n = 45)

p-value

Age, yrs

60.5 ± 11.0/63.0 ± 10.6

0.17a

Height, cm

167.7 ± 6.3/153.4 ± 5.3

<0.0001a

Weight, kg

71.6 ± 12.9/57.5 ± 10.5

<0.0001a

BMI, kg/ m2

25.4 ± 3.9/24.4 ± 4.2

<0.0001a

Diabetes mellitus, %

39 (26.0)/11 (24.4)

0.83b

Hypertension, %

98 (65.3)/21 (46.7)

0.02b

Coronary artery disease, %

33 (22.0)/4 (8.9)

0.08c

Heart rate, bpm

66.6 ± 9.5/ 73.4 ± 11.8

0.0001a

MABP, mmHg

92.1 ± 11.4/87.5 ± 11.1

0.02a

Pulse pressure, mmHg

55.4 ± 13.1/57.3 ± 13.7

0.40a

Spherical equivalent, D

−0.5 ± 2.5/−0.5 ± 2.8

0.87d

IOP, mmHg

12.7 ± 2.9/13.1 ± 3.3

0.45a

OPP, mmHg

48.7 ± 7.8/45.2 ± 7.4

0.009a

HbA1c, %

6.1 ± 0.9/6.2 ± 1.0

0.59a

Red blood cells, ×104/μl

463.2 ± 48.1/436.8 ± 39.1

0.009a

Platelets, ×103/μl

21.6 ± 5.5/23.3 ± 8.0

0.11a

Cystatin C, mg/l

0.85 ± 0.16/0.75 ± 0.14

0.0003d

AHI, times/hr

39.2 ± 22.2/29.3 ± 21.9

0.01a

Lowest SpO2, %

81.7 ± 7.6/82.9 ± 8.3

0.38a

Mean SpO2, %

94.9 ± 1.7/95.6 ± 1.7

0.02a

MBR-Vessel

43.2 ± 7.5/46.4 ± 8.0

0.01a

MBR-Tissue

12.6 ± 2.7/13.3 ± 2.7

0.12a

MBR-All

23.3 ± 5.1/25.8 ± 5.7

0.004a

  1. The data are mean ± SD or number (%). aUnpaired t-test, b2 × 2 chi-square test, cYates 2 × 2 chi-square test, dMann-Whitney U-test. AHI: apnea hypopnea index, BMI: body mass index, bpm: beat per minute, D: diopters, HbA1c: glycated hemoglobin A1c, IOP: intra-ocular pressure, MABP: mean arterial blood pressure, MBR: mean blur rate, OPP: ocular perfusion pressure, SpO2: percutaneous oxygen saturation.
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