Table 1.
Birth weight and gestational age of infants treated for prethreshold and threshold ROP.
Figure 1.
Birth weight against gestational age of 469 infants treated for threshold or prethreshold ROP.
Dotted line indicates Chinese screening criteria.
Figure 2.
Box plot of postmenstrual age at the time of diagnosis of ROP needing treatment, by birth weight (p = 0.001) (A); Box plot of postmenstrual age at the time of diagnosis of ROP needing treatment, by gestational age (p<0.001) (B).
Figure 3.
Plot of birth weight against postmenstrual age at treatment (A); Plot of gestational age against postmenstrual age at treatment (B).
Table 2.
Postmenstrual and chronological age at treatment, by birth weight and gestational age (all infants).
Table 3.
Postmenstrual and chronological age at treatment, by birth weight and gestational age (prethreshold).
Table 4.
Postmenstrual and chronological age at treatment, by birth weight and gestational age (Threshold).