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. Author manuscript; available in PMC: 2009 Dec 21.
Published in final edited form as: Strabismus. 2008 Apr–Jun;16(2):57–63. doi: 10.1080/09273970802020292

TABLE 3.

in concomitant and pattern exotropia

Comitance Mean Rate of Exotropic Drift (degrees/week) Cases Exhibiting Exotropic Drift Cases Exhibiting Esotropic Drift P-value (Sign Test)
Comitant +0.4 ± 0.4 11 1 <0.01
Pattern −0.1 ± 0.3 3 5 0.727