Table 4.

Univariate predictors of reoperation from vertical strabismus surgery.

Clinical Factor.	Factor Present.	Factor Absent.	p value.
Adjustable suture used.	15.2% (40/264)	10.4% (84/808)	0.045
Age 18 to 39 years.	6.9% (17/247)	13.0% (107/825)	0.009
Age 40 to 64 years.	13.6% (84/617)	8.8% (40/455)	0.016
Age 65 to 89 years.	11.1% (23/208)	11.7% (101/864)	0.90
1 muscle operated.	10.9% (88/809)	13.7% (36/227)	0.22
2 muscles operated.	13.7% (35/256)	10.9% (89/816)	0.26
3 or 4 muscles operated.	16.7% (2/12)	11.5% (122/1060)	0.64
Mechanical strabismus.	12.7% (39/308)	11.1% (85/764)	0.46
Scarring or restrictive	12.5% (37/296)	11.2% (87/776)	0.59
Intermittent	17.6% (3/17)	11.5% (121/1055)	0.43
Alternating	20.0% (4/20)	11.4% (120/1052)	0.28
Incomitant	10.3% (6/58)	11.6% (118/1014)	1.00
Complex	12.0% (42/349)	11.3% (82/723)	0.76
Total.	11.6% (124/1072)	--	--