Table 5.

Linear regression analyses between optical coherence tomography and optical coherence tomography angiography parameters.

		Group A			Group B			Group C			Group D
		r	β	p-value	r	β	p-value	r	β	p-value	r	β	p-value
GC-IPL	VD inner ring	0.639	2.746	<0.001	0.521	4.649	0.022	0.113	0.667	0.473	0.243	−1.825	0.301
	VD 3 mm full	0.635	2.838	<0.001	0.512	5.104	0.025	0.162	1.056	0.298	0.175	−1.311	0.460
	PD inner ring	0.569	143.148	<0.001	0.583	282.042	0.009	0.199	77.362	0.201	0.316	−155.945	0.174
	PD 3 mm full	0.568	148.203	<0.001	0.614	334.690	0.005	0.227	93.918	0.143	0.269	−134.218	0.251
RNFL	VD inner ring	0.398	1.733	0.012	0.614	7.095	0.005	0.109	0.842	0.488	0.216	−2.105	0.361
	VD 3 mm full	0.397	1.800	0.012	0.529	6.831	0.020	0.115	0.982	0.461	0.134	−1.302	0.574
	PD inner ring	0.346	88.187	0.031	0.764	478.644	<0.001	0.235	119.360	0.130	0.306	−196.150	0.190
	PD 3 mm full	0.347	91.713	0.031	0.716	505.762	0.001	0.253	136.525	0.102	0.230	−149.477	0.328

-GCIPL = ganglion cell-inner plexus layer; RNFL = retinal nerve fiber layer; VD = vessel density; PD = perfusion density.

- Group A = chronic hypertension group, Group B = relieved hypertension group, Group C = older healthy group, Group D = younger healthy group.

- Boldface numbers indicate statistically significant differences at p < 0.05.