Table 3. Parameters Values and ICCs of Diurnal IOP Curves in/Between Two Days.

Parameter	POAG group					OHT group
	Day1 a	Day2 a	P value	ICC	95%CI	Day1 a	Day2 a	P value	ICC	95%CI
IOP value (for the whole 24h)	19.89±3.70	19.56±3.65	0.001 c	0.577	0.536–0.615	20.72±3.89	20.42±3.80	0.018 b	0.561	0.512–0.606
Mean IOP	19.89±2.71	19.56±2.65	0.039 b	0.832	0.755–0.885	20.72±2.80	20.42±2.64	0.081	0.867	0.792–0.916
Peak IOP	24.38±3.60	24.09±3.20	0.295	0.704	0.586–0.793	25.62±3.90	25.60±4.01	0.960	0.816	0.718–0.882
IOP fluctuation	8.41±2.47	8.33±2.20	0.767	0.367	0.178–0.530	8.94±3.03	9.06±3.19	0.704	0.633	0.466–0.757

^a Data are expressed as mean ± SD;

^b P<0.05;

^c P<0.01.