BMC Ophthalmology

Table 1 Comparison of intraocular pressure between groups with different intervals

From: Evaluation of preoperative speed of progression and its association with surgical outcomes in primary congenital glaucoma patients: a retrospective study

	Interval≦ 1 month (mmHg)	Interval > 1 month (mmHg)	p-Value
1 month postoperatively	24.74 ± 4.83(n = 31)	19.67 ± 8.13(n = 42)	0.003^a*
3 months postoperatively	24.74 ± 6.95(n = 27)	19.06 ± 6.72(n = 31)	0.003^a*
6 months postoperatively	22.16 ± 6.89(n = 25)	17.61 ± 6.57(n = 36)	0.012^a*
12 months postoperatively	18.00(13.00–20.00)(n = 31)	16.00(12.65–17.3)(n = 44)	0. 340^b
18 months postoperatively	16.00(13.75–19.00)(n = 26)	15.00(14.00–19.5)(n = 29)	0.879^b
24 months postoperatively	16.00(13.50–19.00)(n = 21)	16.00(14.00–18.00)(n = 23)	0.795^b

^aStudent’s t-test; interval: interval between onset to surgery; ^bWilcoxon rank sum; *: p < 0.05

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