Table 1. Demographic and preoperative parameters of children with childhood glaucoma having microcatheter-assisted trabeculotomy.

Parameter	Total	Cases without previous surgery history	Cases with previous surgery history	P
Patients	36	16	20
Number of eyes	42	20	22	0.758a
Average age, months, mean±SD (range)	41.4±31.5 (3–108)	33.5±32.2 (3–96)	48.5±29.8 (4–108)	0.125b
Sex, number of patients
Male	24	13	11	0.095c
Female	12	3	9
Diagnosis by eye, n
Neonatal PCG (onset: birth–1 month)	9	3	6	0.553a
Infantile PCG (onset: 1 month–2 years)	24	13	11
Late-onset PCG (onset: >2 years)	9	4	5
Horizontal corneal diameter, mm, mean±SD	12.8±1.1	12.8±1.1	12.8±1.1	0.907b
Cup to disc ratio	0.78±0.12	0.79±0.06	0.77±0.15	0.680b
Cloudy cornea, n (%)	25 (59.5)	11 (55.0)	14 (63.6)	0.569a
Follow-up duration, months, median (range)	12 (6–12)	12 (6–12)	12 (6–12)	0.513d
Average previous surgeries, mean±SD	—	—	1.3±0.5	—
1 n(%)			16 (72.7)
2 n(%)			6 (27.3)
Preoperative IOP, mean±SD	33.1±7.4	31.5±7.2	34.6±7.3	0.171b
Preoperative number of medications, mean±SD (median, range)	2.7±0.9 (3, 1–4)	2.7±1.1 (3, 1–5)	2.7±0.8 (3, 1–4)	0.958d

Abbreviation: n, number of eyes.

^aχ²-test.

^bIndependent-samples t-test.

^cFisher's exact test.

^dMann–Whitney U-test.