Table 5.
Relationship Between Private Insurance and Other Baseline Characteristics
|
Characteristic |
Private Insurance |
P
Value* |
|
|
No (n
= 44) |
Yes (n
= 70) |
||
| Characteristics of treated eye | |||
| Type of cataract, mild/possibly developmental | 4 (9%) | 10 (14%) | 0.56 |
| Orthotropic | (n = 41) | (n = 67) | 0.37 |
| 28 (68%) | 52 (78%) | ||
| Corneal diameter, mm | 10.4 ± 0.7 | 10.5 ± 0.8 | 0.79 |
| Average central keratometric power, D | 45.9 ± 2.5 | 46.7 ± 2.8 | 0.15 |
| Axial length, mm | (n = 42) | (n = 59) | 0.70 |
| 18.0 ± 1.3 | 17.9 ± 1.3 | ||
| Intraocular pressure, mm Hg | 12.2 ± 5.1 | 12.2 ± 4.8 | 0.99 |
| Pupil diameter, mm | (n = 43) | (n = 58) | 0.016 |
| 3.0 ± 0.8 | 3.5 ± 1.0 | ||
| Aphakia treatment, IOL | 24 (55%) | 33 (47%) | 0.56 |
| Physiological characteristics of infant | |||
| Patient age at surgery, mo | 2.1 | 1.8 | 0.88 |
| (1.2–3.1) | (1.2–3.2) | ||
| Patient age strata at surgery, 49–210 d | 26 (59%) | 38 (54%) | 0.70 |
| Gestational age at birth, wk | (n = 41) | (n = 61) | 0.68 |
| 38.9 ± 1.5 | 38.8 ± 1.1 | ||
| Birth weight, g | (n = 43) | (n = 69) | 0.55 |
| 3492 ± 501 | 3435 ± 484 | ||
| Sex, male | 19 (43%) | 41 (59%) | 0.13 |
| Race, white | 36 (81%) | 61 (87%) | 0.43 |
| Hispanic, yes | 12 (27%) | 7 (10%) | 0.021 |
| Sociologic characteristics of family | |||
| Primary caregiver age at surgery, y | (n = 41) | 30.9 ± 4.6 | <0.0001 |
| 26.3 ± 6.3 | |||
| Highest education level of mother or father | (n = 42) | (n = 69) | |
| High-school graduate or less | 19 (45%) | 5 (7%) | |
| Vocational/some college | 16 (38%) | 24 (35%) | <0.0001 |
| College graduate | 8 (14%) | 21 (30%) | |
| Graduate or professional school | 1 (2%) | 19 (28%) | |
Values are n (%), mean ± standard deviation, or median (interquartile range).
*
P value for comparing patients with and without private insurance on percentages (Fisher's exact test), means (independent groups t-test), or medians (Wilcoxon rank sum test).