Table 1.
Former preterm subjects [median (range)]
| A. ERG subjects | ||||
|---|---|---|---|---|
| Category | n | Gestational Age (weeks) |
Birth Weight (g) |
Age at Test (post-term) |
| Infants (n = 35) | ||||
| Severe ROP | 5 | 27.0 (25 to 28) | 950 (499 to 1040) | 11.6 (9.0 to 31.3) weeks |
| Mild ROP | 21 | 27.0 (24 to 31) | 890 (610 to 1332) | 10.3 (7.4 to 36.3) weeks |
| No ROP | 9 | 29.0 (25 to 32) | 1270 (740 to 2275) | 10.3 (9.1 to 33.8) weeks |
| Older (n = 50) | ||||
| Severe ROP | 9 | 26.0 (24 to 30) | 634 (490 to 1750) | 10.0 (5.9 to 18.5) years |
| Mild ROP | 29 | 25.0 (23 to 32) | 760 (500 to 1588) | 11.1 (3.1 to 23.0) years |
| No ROP | 12 | 30.5 (26 to 32) | 1424 (820 to 2268) | 9.8 (3.1 to 18.1) years |
| B. Subset of ERG subjects with dark adapted visual thresholds | ||||
|---|---|---|---|---|
| Category | n | Gestational Age (weeks) |
Birth Weight (g) |
Age at Test (post-term) |
| Infants (n = 20) | ||||
| Severe ROP | 5 | 27.0 (25 to 28) | 950 (499 to 1040) | 11.7 (9.4 to 32.9) weeks |
| Mild ROP | 11 | 28.0 (24 to 30) | 940 (610 to 1230) | 10.7 (7.6 to 18.9) weeks |
| No ROP | 4 | 28.0 (27 to 30) | 1250 (1195 to 1270) | 10.5 (9.9 to 11.3) weeks |
| Older (n = 19) | ||||
| Severe ROP | 4 | 25.5 (24 to 28) | 634 (490 to 1100) | 10.4 (6.7 to 14.5) years |
| Mild ROP | 12 | 25.5 (24 to 32) | 785 (595 to 1588) | 11.6 (3.1 to 14.9) years |
| No ROP | 3 | 26.0 (26 to 30) | 930 (820 to 1400) | 7.7 (3.0 to 13.9) years |