Table 4.

Agreement of IOP and CDR measurement by an ophthalmologist at the base hospital and technicians at the vision center

Comparison of IOP measurement by an ophthalmologist at the base hospital and technicians at the vision center
Eye	Base hospital			Vision center			p	Intraclass correlation coefficient (ICC)
	n	Mean (SD)	Range	n	Mean (SD)	Range
Right eye	274	18.42±9.0	2-62	274	17.36±7.5	10-60	0.134	0.82 (0.76-0.85)
Left eye	277	18.06±8.3	5-58	277	16.89±6.9	10-52	0.192	0.74 (0.67-0.79)
Both eyes	551	18.25±8.7	2-62	551	17.12±7.2	10-60	0.163	0.78 (0.74-0.81)
Comparison of CDR measurement by an ophthalmologist at the base hospital and technicians at the vision center
Eye	Base Hospital			Vision Center			p	Intraclass correlation coefficient (ICC)
	n	Mean (SD)	Range	n	Mean (SD)	Range
Right eye	212	0.63±0.17	0.2-0.95	212	0.70±0.13	0.4-0.9	0.752	0.89 (0.85-0.91)
Left eye	212	0.63±0.18	0.2-0.95	212	0.70±0.13	0.4-0.9	0.388	0.91 (0.89-0.93)
Both eyes	424	0.63±0.18	0.2-0.95	424	0.70±0.13	0.4-0.9	0.57	0.90 (0.88-0.92)

Values were presented with ICC and 95% confidence interval. The Intraclass Correlation Coefficient (ICC) shows good reliability (ICC >0.75) that exists between the measurement of IOP and CDR at the base hospital and vision center.