TABLE 6.
DESCRIPTIVE STATISTICS OF THE ANALYSIS VARIABLES GROUPED BY WHETHER INDEMNITY WAS PAID
| VARIABLE | N | INDEMNITY NOT PAID* | INDEMNITY PAID* | PVALUE† |
|---|---|---|---|---|
| N=75 | N=32 | |||
| Gender of insured: male | 108 | 88% (66) | 84% (27) | 0.61§ |
| Gender of claimant: male | 108 | 51% (38) | 47% (15) | 0.72§ |
| Age of insured‡ | 108 | 42 51 57 | 38 48 56 | 0.40# |
| Age of claimant‡ | 101 | 65 70 77 | 66 71 78 | 0.41# |
| Operated eye: left eye | 107 | 62% (46) | 59% (19) | 0.79§ |
| LogMAR VA of fellow eye‡ | 96 | 0.10 0.18 0.48 | 0.10 0.30 0.49 | 0.53# |
| LogMAR preop VA‡ | 98 | 0.42 0.60 1.14 | 0.48 0.54 0.70 | 0.26# |
| LogMAR final VA‡ | 97 | 0.27 0.65 2.20 | 0.64 1.41 2.30 | 0.04# |
| ΔLogMAR VA‡ | 90 | −0.44 0.00 0.88 | 0.50 1.22 1.83 <0.001# | |
| Retinal detachment | 108 | 20% (15) | 31% (10) | 0.21§ |
| Cystoid macular edema | 108 | 15% (11) | 22% (7) | 0.36§ |
| Glaucoma/elevated IOP | 108 | 24% (18) | 41% (13) | 0.083§ |
| Corneal edema/decompensation | 108 | 15% (11) | 31% (10) | 0.048§ |
| Other causes of poor VA | 108 | 32% (24) | 28% (9) | 0.69§ |
| Type of IOL | 94 | 0.78§ | ||
| PC IOL | 70% (46) | 63% (17) | ||
| AC IOL | 23% (15) | 26% (7) | ||
| Aphakia | 8% (5) | 11% (3) | ||
| Time to referral (days)‡ | 94 | 1 7 28 | 4 12 21 | 0.48# |
| Duration of claim opening to closing (months)‡ | 108 | 14 22 36 | 19 26 39 | 0.15# |
| Duration between surgery and claim occurring (months)‡ | 108 | 8.2 13.0 22.6 | 10.9 17.4 23.8 | 0.18# |
| Year when the claim opened‡ | 108 | 1997 2001 2004 | 1997 2001 2004 | 0.51# |
AC IOL, anterior chamber intraocular lens; IOP, intraocular pressure; PC IOL, posterior chamber intraocular lens; VA, visual acuity.
*
N is the number of non–missing values. Numbers after percents are frequencies.
†
The P values evaluate whether the variable is predictive of having an indemnity payment.
‡
For each of these variables, the three numbers given represent the lower quartile, the median, and the upper quartile for continuous variables.
§
Pearson test.
#
Wilcoxon test.