CO₂ Laser-Assisted Deep Sclerectomy Surgery Compared with Trabeculectomy in Primary Open-Angle Glaucoma: Two-Year Results

Table 4

Success rate over time between the two groups n (%).

Time	Parameters	n	CLASS	n	Trab	χ^2
			Success rate		Success rate
After 6 months	Complete	29	24 (82.8)	46	38 (82.6)	<0.001	0.99
	Qualified	29	29 (100)	46	44 95.7)	1.30	0.26
After 12 months	Complete	29	17 (58.6)	45	27 (60.0)	0.14	0.91
	Qualified	29	27 (93.1)	45	42 (93.3)	<0.001	0.97
After 24 months	Complete	29	15 (51.7)	44	21 (47.7)	0.11	0.74
	Qualified	29	25 (86.2)	44	37 (84.1)	0.06	0.81

values were calculated using the chi-squared test.