Table 12.
Characteristics of All Patients with TVL on Exam
| Total number of patients | 102 | ||
| Number of patients with ROP | 74 | 73% | |
| Number of patients with plus disease | 26 | 25% | |
| Birthweight | |||
| Mean, std dev (g) | 615.5 | 138.7 | p < 0.001* |
| Proportion (n, % of plus patients) | |||
| < 750g | 62 | 83.8% | p < 0.001# |
| 751–1000g | 12 | 16.2% | |
| 1001–1250g | 0 | 0.0% | |
| 1251–1500g | 0 | 0.0% | |
| >1500g | 0 | 0.0% | |
| Gestational Age | |||
| Mean, std dev (weeks) | 24.9 | 1.5 | p < 0.001* |
| Proportion (n, % of plus patients) | |||
| <27w | 68 | 91.9% | p < 0.001# |
| 27–32w | 6 | 8.1% | |
| >32w | 0 | 0.0% | |
| Multiple Gestation (n, % total) | 11 | 10.8% | p = 0.374ǂ |
| Zone/Stage Severity | |||
| Zone (mean, std dev) | 1.62 | 0.5 | p < 0.001* |
| Stage (mean, std dev) | 1.75 | 0.7 | p = 0.369* |
*
T-test comparison of tunica patients versus non-tunica patients
#
Fisher-exact comparison of tunica patients versus non-tunica patients
ǂ
Chi-square comparison of tunica patients versus non-tunica patients
Abbreviations: g - grams, n - number, std dev - standard deviation, TVL - tunica vasculosa lentis, w - weeks