Table 1.
Demographics and characteristics of neonates enrolled in multicentre universal newborn eye screening.
| Total neonates | Group 1* | Group 2* | |
|---|---|---|---|
| Total number (%) | 64 632 (100) | 1833 (2.84) | 62 799 (97.16) |
| Gestational age (weeks) | 39 (38, 40) † | 32 (31, 34) † | 39 (38, 40) † |
| Age at screening (days) | 4 (1, 7) † | 15 (7, 23) † | 4 (1, 7) † |
| Age of mothers (years old) | 29 (27, 32)† | 29 (27, 32)† | 30 (27, 33.5)† |
| Birthweight (grams, SD) | 3314.84 ± 541.66 | 1678.56 ± 383.00 | 3362.34 ± 466.56 |
| Gender | |||
| Male (%) | 34 939 (54.06) | 949 (51.77) | 33 990 (54.13) |
| Female (%) | 29 693 (45.94) | 884 (48.23) | 28 809 (45.87) |
*
Group 1 included those neonates who were premature [gestational age (GA) <32 w] or low birthweight (<2000 g; Chinese retinopathy of prematurity screening criteria). Group 2 included the remaining neonates beyond screening criteria (GA ≥32 w) and birthweight (≥2000 g).
†
Variables were summarized as the median with 25th and 75th percentiles.