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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: J AAPOS. 2011 Dec;15(6):536–540. doi: 10.1016/j.jaapos.2011.07.017

Table 4.

Univariate and multivariate analysis to determine independent variables that increase the odds of developing strabismus at 6 years

Factors Univariate analysis Multivariate analysis
P value OR [CI] P Value
Birthweight (100g) 0.73 1.02 [0.82-1.28] 0.83
Gestational age (weeks) 0.42 0.96 [0.75-1.22] 0.73
Race (black,1; other, 0) 0.94 0.93 [0.43-2.02] 0.86
Sex (male,1; female, 0) 0.37 1.10 [0.59-2.03] 0.77
Inborn (inborn, 1; outborn, 0) 0.38 0.84 [0.40-1.77] 0.65
Multiple births (single,1; multiple, 0) 0.18 1.11 [0.58-2.10] 0.76
Anisometropia ≥2 D (no, 0; yes, 1) 0.017 0.47 [0.23-0.97] 0.04
Fixation (both eyes normal, 0; others, 1) <0.001 5.28 [2.68-10.42] <0.001
ETDRS acuity (both eyes favorable, 0; others, 1) <0.001 1.82 [0.89-3.70] 0.10
Ocular structure (both eyes favorable, 0; others, 1) <0.001 4.93 [1.23-19.82] 0.025
Amblyopia (no, 0; ever diagnosed, 1) <0.001 2.91 [1.45-5.85] 0.003
Seizure/ shunt at 2-year examination (no, 0; ever diagnosed, 1) 0.046 1.02 [0.42-2.47] 0.96

CI, confidence interval; OR, odds ratio.