Table 1 Summary of variables statistics in the study
From: Non-surgical treatment of stage 4A retinopathy of prematurity
Variable | Mean | Standard deviation |
|---|---|---|
Birth weight(gr) | 1399 | 1220.82 |
Age (week) | 30.6 | 0.94 |
Duration of NICU stay(day) | 32.6 | 31.34 |
Duration of O2 consumption (day) | 22 | 20.21 |
Age at the time of laser and injection (week) | 39.4 | 3.24 |