Table 3.

Bivariate Associations of Categorical Baseline Characteristics and Visual Acuity at 4.5 Years of Age

Baseline Characteristic	No. of Patients	Visual Acuity, logMAR,Median (IQR)	P Value*
Characteristics of treated eye
Type of cataract
Mild/possibly acquired	14	1.15 (0.30–1.60)	0.72
Other	98	0.80 (0.30–1.70)
Orthotropic
No	27	1.20 (0.70–1.92)	0.17
Yes	79	0.70 (0.30–1.70)
Aphakia treatment
CL	57	0.90 (0.30–1.60)	0.54
IOL	55	0.90 (0.40–1.73)
Physiological characteristics of infant
Patient age at surgery, d
28–48	48	0.50 (0.20–1.55)	0.046
49–210	64	1.10 (0.50–1.71)
Sex
Female	59	0.70 (0.30–1.40)	0.60
Male	53	1.10 (0.30–1.82)
Race
White	95	1.00 (0.30–1.70)	0.82
Nonwhite	17	0.70 (0.40–1.40)
Hispanic
No	94	0.85 (0.30–1.73)	0.89
Yes	18	0.95 (0.30–1.70)
Sociologic characteristics of family
Private insurance
No	43	1.40 (0.60–2.22)	0.0004
Yes	69	0.60 (0.30–1.20)
Highest education level of mother or father
High-school graduate or less	23	1.10 (0.50–1.20)	0.19
Vocational/some college	40	0.90 (0.30–2.17)
College graduate	27	0.70 (0.30–1.20)
Graduate or professional school	19	0.50 (0.30–1.20)

IQR, interquartile range.

^* The P value for the Wilcoxon rank sum test comparing the medians of two groups or the Kruskall-Wallis test comparing the medians of more than two groups.