Long-Term Effects of Nilvadipine against Progression of the Central Visual Field Defect in Retinitis Pigmentosa: An Extended Study

Table 3

Results of nilvadipine treatment on sensitivity of central 4 points (CENT4) (Analysis 2).

	Treated group	Control group	Statistical significance
	(𝑛=19)	(𝑛=22)	P value
Averaged ΔCENT4, R, dB/Y	−0.78±0.25	−1.29±0.39	0.296
Median (range), dB/Y	−0.67 (−3.60~+0.95)	−1.10 (−5.28~−1.85)	0.278
Averaged ΔCENT4, L, dB/Y	−0.51±0.29	−1.75±0.29	0.100
Median (range), dB/Y	−0.70 (−3.52~+2.65)	−1.12 (−13.47~+2.45)	0.087
Correlation between R and L	0.84	0.62	<0.001 (T)**; 0.003 (C)**

Data are expressed as means ± SEM.
R: right eye; L: left eye; Y: year; T: treated group; C: control group. Significance: ^∗𝑃≦0.05; ^∗∗𝑃<0.01.