Pulse-Wave Analysis of Optic Nerve Head Circulation Is Significantly Correlated with Kidney Function in Patients with and without Chronic Kidney Disease

Table 5

Results of all parameters in patients with the chronic kidney disease (CKD) and without CKD.

	CKD (+)	CKD (−)	𝑃 value
Age (years)	70.4 ± 6.1	58.6 ± 10.0	<0.0001*
Men : women	18 : 4	30 : 19	0.15^†
Systolic blood pressure (mmHg)	131.2±19.0	124.9±15.3	0.14*
Diastolic blood pressure (mmHg)	72.3±11.4	71.0±9.3	0.61*
Mean arterial blood pressure (mmHg)	91.9±12.3	89.0±10.2	0.29*
Pulse pressure (mmHg)	58.9±15.6	53.9±11.9	0.14*
Heart rate (beat per minutes)	65.1±12.2	67.3±10.2	0.44*
Intraocular pressure (mmHg)	13.2±2.3	13.2±2.2	0.94*
Ocular perfusion pressure (mmHg)	48.1±8.5	46.1±7.1	0.32*
Body mass index (kg/m^2)	24.1±2.6	24.0±3.5	0.96*
Hypertension (%)	18/22 (82)	22/49 (45)	0.008^†
Creatinine (mg/dL)	1.06±0.17	0.77±0.14	<0.0001*
Cystatin C (mg/L)	0.96±0.12	0.74±0.11	<0.0001*
Urinary albumin excretion (mg/L)	15.59±17.31	11.61±13.56	0.45^‡
Blowout time	46.1±3.0	48.5±2.9	0.002*

Mean ± standard deviation, 𝑛=71.
*Unpaired 𝑡-test.
^†Yates 2×2 chi-square test.
^‡Mann-Whitney 𝑈 test.